Ho tsuba ha Frontostriatal ho bolela ho laola ts'oaetso ho hlōleha ho ba le takatso ea maikutlo ho bacha (2011)

J Cogn Neurosci. 2011 Sep; 23 (9): 2123-34. Epub 2010 Sep 7.

 

mohloli o moholo

Sackler Institute for Developmental Psychobiology, Weill Cornell Medical College, 1300 York Avenue, Box 140, New York, NY 10065, USA. [imeile e sirelelitsoe]

inahaneloang

Ho beha bophelo ba bacha kotsing ke bothata ba sechaba bo eketsang menyetla ea liphetho tse seng ntle tsa bophelo. Ntho e le ngoe e nahanneng ho ba le tšusumetso bacha'Tšekamelo ea ho ipeha kotsing ke kutloisiso e ntlafalitsoeng ea takatso ea lijo cues, e lekanang le bokhoni ba ho ba ngoana ea sa holang kelello ho laola boemo. Re lekile mofuta ona oa kutlo ka ho supa tšebelisano-'ngoe lipakeng tsa sebaka sa khubung ea naha, dorsal striatal, le libaka tsa pele tsa cortical tse fapaneng. takatso ea lijo mojaro o sebelisang ho hlahlojoa ha fMRI Banana, bacha le ba baholo ba nkile karolo ea ho ea takatso ea lijo (lifahleho tse thabileng) le ho se nke lehlakore cues (lifahleho tse khutsitseng). Tšusumetso ho laola boemo ho se nke lehlakore cues e bonts'itse ntlafatso ea methapo le lilemo, ha bacha ba bontšitse phokotso ea tšusumetso e seng molaong ho laola boemo ho takatso ea lijo cues. Phokotso ea ts'ebetso ena ho batjha e ne e bapisoa le ketsahalo e ntlafalitsoeng ho ventral striatum. Pele ho kotuloa hoa cortical ho hokahane le ho nepahala ka botlalo, 'me ho bontšitse karabelo e hlakileng le lilemo tsa ho se tsamaee le liteko. Litlhahlobo tsa khokahano li bonts'itse ts'ebetso ea moea frontostriatal potoloho e kenyelletsang boemo bo tlase bo tlase le bohare ba dorsal nakong ea ho se tsamaee le liteko. Ho lekola ho hola ho ile ha bontša hore bacha ba na le bana ba baholo le batho ba baholo ba nang le liteko tse matla pakeng tsa thuto e tlase pakeng tsa thuto ea boits'oaro. Liphumano tsena li hlahisa boemeli bo fetelletseng ba moea oa takatso ea lijo cues in bacha motho ea amanang le mokena-lipakeng kelello ho laola boemo karabelo. Khokahano ea data le khokahano ea tlhahiso ea likhakanyo li fana ka maikutlo a hore lits'ebetso tsena li buisana maemong a dorsal striatum phapang ho pharalla. Ho araba ka tsela e leeme tsamaisong ena ke o mong oa mekhoa e ka eketsang kotsi nakong ea bohlankana.

Boitšoaro ba bongoaneng bo fapane hole le bo bonoang ho bana le ho batho ba baholo ka mekhoa e mengata. Liphapang tsena li bonahala haholo ha ho nahanoa ka lipalo-palo tsa bophelo bo botle tsa US mabapi le ho ata le lisosa tsa lefu ho bacha le boitšoaro bo phahameng ba ho ipeha kotsing bo amanang le liphetho tsena. Lithuto tsa Epidemiological li tlaleha boits'ebetso bo matla ba ho nka likotsi nakong ea lilemo tsa bocha, joalo ka ha ho bonahala ka lebaka la tšubuhlellano e matla litekong tsa lithethefatsi le joala, lefu la ka phoso le thobalano e sa sireletsehang (Eaton, et al., 2008). Kutloisiso e betere ea mekhoa ea kutloisiso le ea lintho tse phelang tse tlasa phetoho ena ea boits'oaro e ka ntlafatsa mekhoa e kenelletseng e reretsoeng ho thibela mekhoa ena e kotsi.

Re ntlafalitse sebopeho sa theoretical se bonts'ang likarolo tsa boiphihlelo ba methapo ea kutlo bo ka khahlisang boitšoaro ba bacha ho fihlela meputso e lebelletsoeng (Casey, Getz, & Galvan, 2008; Casey, Jones, & Hare, 2008; Somerville le Casey, 2010). Mohlala ona, o lumellanang le ba bang (Ernst, Pine, le Hardin, 2006; Steinberg, 2008) 'me e thehiloe mosebetsing o matla ho phoofolo le motho, e fana ka maikutlo a hore tšebelisano lipakeng tsa potoloho ea methapo e emelang matla a susumetsang le taolo ea kelello e fapana ka matla holima nts'etsopele, bocha bo bontšoa ke ho se lekane pakeng tsa tšusumetso le matla a taolo ea boits'oaro ho boits'oaro. Ka ho khetheha, libaka tse nang le boko bo matla ba dopamine tse emelang boleng ba takatso ea meputso e ka bang joalo ka ventral striatum (Carlezon le Bohlale, 1996; Pontieri, Tanda, Orzi, & DiChiara, 1996; Bohlale, 2004; Galvan, et al., 2005; Haber & Knutson, 2009; Spicer, et al., 2007) bontša ho supa ka matla nakong ea bocha e ka bang sesupo sa ho holisa pele ho nako (Galvan, et al., 2006; Geier, Terwilliger, Teslovich, Velanova, & Luna, 2010; Van Leijenhorst, et al., 2009). Ho fapana le hoo, ho potoloha ha boko ho bohlokoa bakeng sa ho hokahanya lits'ebetso tsa taolo ea susumetso le kelello ho kenyeletsa le marangrang a kapele a patlo ea maoto (Balleine, Delgado, & Hikosaka, 2007; Delgado, Stenger, & Fiez, 2004; Rubia, et al., 2006) lula ba le tlase lilemong tsa bocha le boikoetliso lilemong tsa bocha (Giedd, et al., 1999; Luna, et al., 2001). Ha lits'ebetso tsena li sebelisana, ho supa ts'ebetso ea "ventral striatum" e nang le taolo e nyane ka lits'ebetso tsa taolo ho fana ka tšusumetso e matla boits'oarong bo latelang, ka mokhoa o hlakileng oa tšusumetso e ntlafalitsoeng e sa tloheloang ke litsamaiso tsa taolo.

Le ha ho le joalo lipatlisiso tsa morao-rao tsa ts'ebetso ea ts'ebetso li tšehelitse conceptualization ena, boholo ba bopaki bo tsebisang mehlala ena ea khopolo-taba bo shebile ka thoko ho ts'ebetso ea moputso kapa tsamaiso ea kelello. Ho ikhethang ke mosebetsi oa morao-rao o bonts'ang kamoo ts'usumetso e ka ntlafatsang bokhoni ba taolo ea kelello (Geier, et al., 2010; Hardin, et al., 2009), moo barupeluoa ba ileng ba putsoa ka ho hatella ka nepo boitšoaro bo neng bo sa jele paate. Mona re bua ka bokhoni ba bacha ba ho laola mokhoa oa ho iphelisa, ka ho kopa bankakarolo ho hana karabelo ea pele ho lifahleho tse sa jeleng paate kapa tse ntle. Moralo ona ka mokhoa o hlakileng ke mohlala o loketseng oa liteko o ka thusang bacha ho fokotsa bokhoni ba bona ba ho hanela meleko bophelong ba letsatsi le letsatsi.

Thutong ea hona joale, re sebelisitse "nogo paradigm" (mohlala, Durston, Davidson, et al., 2003; Hare, Tottenham, Davidson, Glover, & Casey, 2005) e nang le lifahleho tse thabileng tse emelang litakatso tsa takatso ea lijo le lifahleho tse khutsitseng tse sa bontsheng boemo ba taolo ea boleng bo tlase ba takatso. Maikutlo a hore lifahleho tse thabileng li bontša tšusumetso ea takatso ea lijo e ipapisitse le data e bonts'ang hore maqhubu a karabelo a ho arabela ka thabo (ka tobetsa ea konopo) a potlakisoa ho latela maikutlo a khutsitseng a maikutlo (Hare et al., 2005, bona Liphetho). Pherekano ena e na le liteko tseo ka tsona morupeluoa a laetsoeng ho arabela ka khothalletso le tse ling moo morupeluoa a lokelang ho hatella karabelo ena. Ngoana, bacha le batho ba baholo ba nkang karolo ho sa le joalo ka mohlala o tlalehiloeng (Hare et al., 2008) o qetile mosebetsi nakong ea ts'ebetso ea ts'ebetso ea matla a matla a molumo oa matla a sefahleho (fMRI). Likarabo tsa boitšoaro mabapi le mofuta o mong le o mong oa khothaletso li ile tsa bonts'oa 'me tlhahlobo ea fMRI e shebile ho potoloha ha pele ho neng ho kentsoe taolo ea tlhalohanyo holima nts'etsopele (frontostriatal circry) le libaka tsa boko tse shebileng moputso (ventral striatum). Haholo-holo re ile ra shebana haholo le khokahano lipakeng tsa lits'ebetso tsena tse boletsoeng esale pele ho se atlehe, litabatabelo tsa takatso ea lijo ho pholletsa le lilemo tse ngata, ho kenyeletsoa nakong ea phetoho ea ho kena bohlankaneng kapa boroetsaneng.

mekhoa

barupeluoa ba

Barupeluoa ba mashome a robeli a metso e meraro ba pakeng tsa lilemo tse 6 le 29 ba ile ba hlahlojoa bakeng sa teko ena. Lintlha tse tsoang ho barupeluoa ba 7 li ile tsa qheleloa ka thoko bakeng sa liteko tse lekaneng tse sa lekanyetsoang ho sekaseka maemo a le mong kapa ho feta (ho se qete liteko tsohle, ho nepahala ho felletseng ka botlalo, le / kapa ho hloka karabelo). Lintlha tse tsoang ho barupeluoa ba 12 li ile tsa qheleloa ka thoko ho ipapisitse le ho sisinyeha ha hlooho ka mokhoa o fetelletseng (joalo ka ha ho hlalositsoe ke> 2mm phetolelo kapa motsamao oa li-degree tsa 2 tse potolohang). Barupeluoa ba bang ba babeli ba ile ba qheleloa ka thoko ka lebaka la mathata a tekheniki, ba siea lithuto tse 62 tse ka sebelisoang (basali ba 30) tlhahlobisong eohle e tlalehiloeng. Likarolo tsa lintlha tse fumanoeng mosebetsing ona li phatlalalitsoe tlalehong e arohaneng (Hare et al., 2008) e tsepamisitse maikutlo ho maemo a liteko a sa tlaleheloang mona (sheba mosebetsi oa liteko). Se amanang le Hare et al. (2008) mohlala, sampole ea hona joale e na le n = 57 ea barupeluoa ba tšoanang mme e boetse e kenyelletsa n = 5 barupeluoa ba eketsehileng ba bana.

Bakeng sa tlhaiso-leseling ea sechaba mabapi le sampole ea ntšetso-pele, bona Lethathamo 1. Barupeluoa ha baa ka ba re ha ho na mafu a methapo ea kelello kapa mafu a kelello 'me ha ho na tšebeliso ea meriana ea kelello mahlaleng a nakoana a ho hlahloba likotsi tsa ho hlahloba, mathata a bophelo a itlalehang, ts'ebeliso ea meriana, tlhahlobo ea kalafo le kalafo ea mafu a kelello. Pele ho nka karolo, lithuto tsohle li ile tsa fana ka tumello e ngotsoeng e nang le tsebo (tumello ea botsoali le tumello ea thuto bakeng sa bana le bacha) e amohetsoeng ke Institutional Review Board of Weill Cornell Medical College.

Lethathamo 1

Lilemo tsa batho ba lilemo le bong.

Mosebetsi oa Teko

Barupeluoa ba phethile mosebetsi oa ho ea nogo (Hare, et al., 2005; Hare, et al., 2008) ka sefahleho se tšosang, se thabileng le se khutsitseng se sebelelitseng e le sesosa. Tlaleho ea hajoale e bua ka maemo a thabo le a khutsitseng mme e siea boemo ba tšabo ho tsoa ho tlhahlobo ea sehlopha, eo e neng e le sehlooho sa tlaleho ea pele (Hare et al., 2008). Nakong ea ts'ebetso e le 'ngoe ea fMRI, mefuta e' meli ea polelo e ile ea hlahisoa, e le ngoe e le khothatso ea `` go '(ke hore, sepheo) eo barupeluoa ba laetsoeng ho tobetsa konopo,' me polelo e 'ngoe e sebetsa e le `` nogo' '(ke hore, nontarget) bakeng sa seo barupeluoa ba lokelang ho hana konopo ea konopo. Metsoako eohle ea lipolelo e sebelisitsoe e le liphofu le tse sa reroang tse hlahisitseng 2 (karabo: go, nogo) ka 3 (maikutlo: tšabo, khutso, thabo) moralo oa tšebetso. Pele ho qaleho ea lekhetlo le leng le le leng, ho ile ha hlaha skrini se bontšang hore na ke polelo efe e sebetsang e le sepheo sa sepheo, se laelang bankakarolo ho arabela polelo eo eseng polelo e ngoe. Barupeluoa le bona ba laetsoe hore ba arabe ka potlako kamoo ba ka khonang empa ba leke ho qoba ho etsa liphoso.

Stimuli le lisebelisoa

Stimuli e ne e le lifahleho tse thabileng, tse tšabehang le tse khutsitseng tsa boits'oaro bo ikhethang ho NimStim setaele sa sefahleho (Tottenham, et al., 2009). Lifahleho tse khutsitseng (mefuta e bonolo ea lifahleho tse sa nke lehlakore) li sebelisitsoe hobane mosebetsi oa pele o bontšitse hore lifahleho tse sa nke lehlakore li ka nkuoa li le mpe ho batho ba ntlafatsang (Gross & Ballif, 1991; Herba & Phillips, 2004; Thomas, et al., 2001). Mosebetsi ona o ile oa hlahisoa ho sebelisoa software ea EPrime, e bonoang ke lithuto tse lenaneong le holimo la kristale (LCD) e kopantsoeng le sistimi ea IFIS-SA (fMRI Devices Corporation, Waukesha, WI). Software ea EPrime, e kopantsoe le sistimi ea IFIS, likarabo tsa konopo tse boletsoeng le linako tsa karabelo.

Meketjana ea mosebetsi

Lintlha li fumanoe likamoreng tse tšeletseng tsa ts'ebetso tse bonts'ang motsoako o mong le o mong oa maikutlo (thabo, khutso, tšabo) le karabelo (eya, nogo; Setšoantšo sa 1) Ho sebelisa moralo o amanang kapele le liketsahalo. Bakeng sa teko e 'ngoe le e' ngoe, sefahleho se ile sa hlaha bakeng sa li-millisecond tsa 500 tse lateloang ke karohano ea maqhubu a pakeng tsa 2 ho isa metsotsoaneng ea 14.5 (ho bolela metsotsoana ea 5.2) nakong eo barupeluoa ba neng ba phomola ha ba ntse ba shebile sefapano sa ho lokisa. Kakaretso ea liteko tsa 48 li hlahisitsoe ka tatellano e le ngoe ka tatellano ea pseudorandomized (36 go, 12 nogo). Ka kakaretso, liteko tsa nogo tsa 24 nogo le liteko tsa 72 ho ile ha fumanoa mofuta o mong le o mong oa polelo.

Setšoantšo sa 1

Moralo oa liteko tse 'ne nakong ea ts'ebetso ea fMRI. Mohlala ona, lifahleho tse khutsitseng ke sepheo sa sepheo, seo barupeluoa ba lokelang ho se ea ka ho tobetsa konopo. Lifahleho tse thabileng ke tšusumetso ea nontarget (`nogo '), eo barupeluoa ba lokelang ho e thibela ho tobetsa konopo. ...

Ho Fumana Litšoantšo

Barupeluoa ba ile ba hlahlojoa ka sehatisi sa General Electric Signa 3.0T fMRI (General Electric Medical Systems, Milwaukee, WI) ka li-coil tsa hlooho tsa quadrature. Qeto e phahameng, T1 e nang le boima ba anatomical scanning e senyehileng gradient sequence ([SPGR] 256 x 256 ka sefofane sephetho sa lifofane, tšimo ea pono ea 240-mm [FOV], 124 × 1.5-mm axial slices), kapa 3D magnetization e lokiselitse ho fumana ka potlako gradient echo sequence ([MPRAGE] 256 × 256 in-plane resolution, 240-mm FOV; 124 × 1.5-mm sagittal slices) e ile ea fumanoa bakeng sa thuto e ngoe le e ngoe bakeng sa phetoho le tlhahiso ea lehae sebakeng sa data ho sebaka sa grama ea Talairach. Mekhahlelo e potolohileng ka hare le ka ntle (Glover & Thomason, 2004) e sebelisitsoe ho fumana data e sebetsang (nako ea ho pheta-pheta = 2500ms, echo time = 30, FOV = 200 mm, Flip angle = 90, skip 0, 64 × 64 matrix). Ho ile ha fumanoa liseke tse mashome a mararo a metso e mene tsa 4-mm-thick-silicone ka ho fetisoa ha X resolution ea 3.125 × 3.125 mm e koahelang boko kaofela ntle le karolo e ka morao ea occipital lobe.

Ts'ebetso ea data ea boits'oaro

Lintlha tse mabapi le boitšoaro li ile tsa hlahlojoa bakeng sa ho nepahala ha ho baloa ho otloa (karabo e nepahetseng), ho fosahetse (ho hloka karabo ho fosahetseng), ho lahloa ka nepo (ho thibela karabelo), le li-alarm tsa bohata (karabo e fosahetseng) bakeng sa maemo a thabo le a khutsitseng. Bakeng sa tlhahlobo, barupeluoa ba ne ba arotsoe ka sehlopha (ea lilemo li 6-12), mocha (ea lilemo li 13-17) le motho e moholo (ea lilemo tse 18 kapa ho feta).

Tlhahlobo ea data ea fMRI

Tlhahlobo ea data ea FMRI e entsoe ka har'a Analysis of Functional Neuroimages (AFNI) software (Nako, 1996). Lintlha tse sebetsang li ile tsa lokisoa ka nako ea selae, tsa hlophisoa kahare le kahare ho matha ho lokisa motsamao oa hlooho, tsa ngolisoa ka kotloloho le sekhahla se seng le se seng sa setho se seng le se seng sa li-anatomical scan, sa fetoloa liperesente tsa liphetoho tsa lipontšo, 'me sa ntlafatsoa ka bophara ba 6 mm ka bophara ba halofo (FWHM Khenele ea Gaussia.

Bakeng sa morupeluoa e mong le e mong, tlhahlobo ea mechini e akaretsang e etselitsoe ho bonts'a litlamorao tsa mesebetsi ka ho kenyelletsa mosebetsi oa li-regresser tsa lithahasello (khutso-tsamaea, khutso-nogo, thabo-ea, thabo-nogo, tšabo-ea, tšabo-nogo, liphoso) tse felletsoeng ka ts'ebetso ea karabo ea methapo ea methapo ea gamma-Various hemodynamic, le li-covariate tsa lintho tse sa khahliseng (li-paramethara tse tsamaeang, moeli le boemo ba quadratic bakeng sa sekhahla se seng le se seng). Bakeng sa phetheho, liteko tsa tšabo li ile tsa fetoloa e le li-regressor tsa mesebetsi (li fupere tšebetso ea "karma-Variate hemodynamic reaction") empa li sa hlahlojoe ho ea pele. Likhakanyo tsa "Paramente" (β) tse emelang litlamorao tsa mesebetsi li ile tsa fetoloa sebaka se lekanang sa Talairach and Tournoux (1988) ka ho sebelisa methati e loantšang e fumanoeng phetohong ea sekhechana se seng le se seng sa tharollo e phahameng ea thuto. Limmapa tsa likhakanyo tsa Talairach tse fetotsoeng li ile tsa ntlafatsoa ho fihlela qeto ea 3 × 3 × 3mm.

Litlhatlhobo tsa sehlopha sa litla-morao li ile tsa etsoa ho khetholla libaka tse sebetsang tsa li-interest (ROI) bakeng sa tlhahlobo e latelang. Ka ho khetheha, maemo a thabileng-ho ea, thabo-nogo, khutso-ho ea, le khutso-nogo li ile tsa isoa ho 2 × 2 × 3 sehlopha sa methapo ea methapo e kopaneng le lintlha tsa maikutlo (ka hare ho lithuto: thabo, khutso), karabelo ( ka hare ho lithuto: ea, nogo), le lilemo (lipakeng tsa lithuto: ngoana, mocha, motho e moholo). Phello e ka sehloohong ea 'mapa oa karabo e bonts'itse libaka tsa mokhethoa e le ts'ebetso ea litlhoko tsa taolo ea kelello e kenyelletsang karolo e ka tlase e ka pele ea sefahleho (x = 32, y = 23, z = 3). Likarabo tse fetotsoeng ka nts'etsopele li bonts'itsoe phello ea mantlha ea 'mapa oa lilemo, ho kenyelletsa le sehlopha sa polasetiki (x = −4, y = 11, z = −9).

Ho nahana ka liphumano tse nkoang e le tsa bohlokoa ho feta lipalo-palo ho fetisitse tokiso ea boko bo felletseng bakeng sa papiso e mengata ho boloka alpha <0.05 ka ho sebelisa motsoako oa p-value / cluster size o boletsoeng ke lipapiso tsa Monte Carlo tse tsamaisong ea Alphasim ka hare ho AFNI. Khethollo e le 'ngoe ho thibelo ea boko bo felletseng e ne e le tlhahlobisong ea litlamorao tsa lilemo. Fuoa karolo ea striatum nts'etsopele ea taolo ea tšusumetso ea maikutlo (Vaidya et al., 1998; Casey et al., 2000; Luna et al., 2001; Durston, Thomas, Yang, et al., 2002, Galvan et al., 2006; Somerville le Casey, 2010) e ile ea tšoaroa joaloka a priori Sebaka se khahlang bakeng sa tlhahlobo ea voxelwise ea litlamorao tsa lilemo. Haholo-holo, litlamorao tsa lilemo li ile tsa botsoa ka har'a maske e kenyelletsang ea anatomical e nang le li-voxels ho dorsal le ventral striatum, e nang le p <0.05, e lokisitsoeng palo ea lipalo e sebelisitsoeng ho latela bophahamo ba patlo ea striatum (li-voxels tsa 1,060). Bakeng sa ho hlaka, re bua ka ho beha lintlha tsa tšebetso ea lilemo joalo ka p <0.05 molumo o monyane o lokisitsoeng (svc) ho pholletsa le buka e ngotsoeng ka letsoho.

Mebuso ea libaka e khahliloe joalo ka libaka tse nang le radius ea 4mm tse lebisitsoeng holim 'a litlhoro tse thathamisitsoeng kaholimo, e' ngoe le e 'ngoe e na le li-voxels tse leshome tsa 3 x 3 × 3. Likhakanyo tsa paramente li ile tsa nkuoa bakeng sa maemo a 4 (thabo-ea, nyakallo-nogo, khutso-tsamaea, khutso-nogo) bakeng sa morupeluoa e mong le e mong oa ROI mme ba romelloa tlhahlobisong e senang marang-rang ho fumana hore na litla-morao li hokae. Karabo, maikutlo, le litlamorao tsa nts'etsopele (ntle le karohano ea voxelwise eo ROI e hlalositsoeng ka eona) e ile ea hlahlojoa ho sebelisoa 2 (maikutlo: khutso, thabo) × 2 (mosebetsi: tsamaea, nogo) x 3 (lilemo: ngoana, mocha ) ANOVA. Litlhatlhobo tsa Offline li ile tsa etsoa ho software ea SPSS Statistics 17.0 (SPSS, Chicago, IL).

Litlamorao tse matla li ile tsa lekoa bakeng sa ho feto-fetoha ha modumo oa ts'ebetso ka ho fana ka likhakanyo tsa lipalo ho likamano tse fapaneng khahlano le litefiso tsa alamo tsa bohata. Litlamorao tse matla tsa ts'ebetso li ile tsa lateloa ka tlhaiso-leseling e amanang le karolo ho lekola hore na litlamorao tsa ts'ebetso li lula li le bohlokoa ha li laoloa ke lilemo. Ka lehlakoreng le leng, litlamorao tse kholo tsa lilemo li ile tsa lateloa ka litlhahlobo tsa likamano tse sa fellang ho fumana hore na litlamorao tsa lilemo li lula li le bohlokoa ha ho laoloa ts'ebetso.

Pele ho mosebetsi le "go-nogo paradigm" e thehile karolo bakeng sa potoloho ea mantlha ho ts'ehetsa ts'ebetso e atlehileng ea ho thibela boitšoaro (Casey et al., 2000; Durston, Thomas, Yang, et al., 2002; Hare et al., 2005). Ho khetholla potoloho ena lethathamong la hajoale, ho ile ha sebelisoa ts'ebetso ea ts'ebetso ea methapo ea kelello le kelello e neng e ikemiselitse ho ikamahanya le ts'ebetso e ikhethileng mabapi le ts'ebetso le tikoloho ea peo sebakeng se nepahetseng sa boemo bo tlase, moo mosebetsi oa tikoloho o boletseng karohano ea ts'ebetso ho theosa le lilemo. Haholo-holo, tlhahlobo ena e ne e ameha ka libaka tsa boko tse bonts'ang tšebetso e kholo ea ho hokahana le IFG e nepahetseng bakeng sa liteko tse nepahetseng tsa nogo ho ea ho liteko. Tlhahlobo ea PPI e entsoe ho sebelisoa mehato e tloaelehileng ea ho e lokisa (Friston, et al., 1997) ka ho tlosa lenane la nako le sebetseng kahare ho sebaka sa peo (ka ho le letona IFG ROI e hlalositsoeng ka holimo x = 32, y = 23, z = 3), e tlosa mehloli ea lerata le maiketsetso, ho hlakola letšoao la neural, le ho kholisa tlhahisoleseling ea nako ea nako ntle le ho tsamaisana le eona ea linako tsa mosebetsi le ts'ebetso ea ho araba ea canonical hemodynamic (joalo ka ha ho hlalositsoe ho Gitelman, Penny, Ashburner, & Friston, 2003). Liphetho tsa sehlopha ho kenyeletsoa bankakarolo bohle, tse thibetsoeng ho p <0.05, e lokisitsoeng bakeng sa papiso e mengata boemong ba boko bo felletseng, e supile sehlopha se le seng se bonts'a khokahano e kholo ea ts'ebetso le IFG e nepahetseng nakong ea nogo ho feta ho ea litekong. Sehlopha sena se atolositse bohareng le kamorao ho IFG e nepahetseng ho ea ho dorsal striatum ka kotloloho ho caudate. Sebaka sa dorsal striatum se khahlisang se hlahisitsoe ho latela 'mapa oa khokahano ka ho tsepamisa sekhahla sa 4mm mabapi le sehlohlolong se ka tlase ho meeli ea anatomical ea dorsal striatum (x = 9, y = 13, z = 6).

Lits'ebetso tsa phetoho ea lipontšo li tlositsoe ho ROI ena 'me tsa lekoa bakeng sa ho kenella pakeng tsa taba le subral striatum le IFG e nepahetseng. Ka ho khetheha, litloaelo tsa "ventral striatal", dorsal striatal le tokelo ea liphetoho tsa matšoao a IFG ho tsoa ho li-ROI tse neng li hlalositsoe pele li ile tsa nkuoa bakeng sa phapang e monate-nogo le thabo. Melao-motheo ena e ile ea romeloa lipakeng tsa lithuto tse ikhethileng ka har'a bana, bacha le sehlopha sa batho ba baholo. Litlhahlobo tsena li supa tekanyo ea kopanyo ho lithuto tsohle tsa nogo ho ea tekong lipakeng tsa likarolo tsena ho sehlopha ka seng. Lits'oaetso tse kopantsoeng tsa coactivation li bonts'a tekanyo eo tloaelo ea ts'ebetso ea tikoloho e le 'ngoe e ka reng e ka sebetsa sebakeng se seng ho fihlela barupeluoa.

Ts'ebetso ea taolo

Ho ile ha etsoa tlhahlobo e eketsehileng ho netefatsa hore litlamorao tsa litlaleho tsa nts'etsopele li sa tlaleheloa ka lebaka la lintlha tse tlase tsa data. Ha ts'ebetso ea mesebetsi e ne e fapane haholo ho pholletsa le lihlopha tsa lilemo, palo ea liteko tse nepahetseng e ne e fapana nakong ea tlhahlobo ea GLM ea maemo a pele. Ka hona, ho ile ha hakangoa karolo ea bobeli ea li-GLM tsa boemo ba pele moo palo ea liteko tse nepahetseng e lekantsoeng maemong ohle (thabo-ea, thabo-nogo, khutso-ho tsamaea, khutso-nogo) le barupeluoa ho tsamaisana le palo e tlase haholo ea liteko tse nepahetseng ho lihlopha tsohle tsa lilemo (liteko tsa nogo tse khutsitseng ho bana; bolela = 17). Ho etsa joalo, li-regressor tse ncha li hlahisitsoe ke ho khetha ka mokhoa o sa reroang n = 17 liteko ka boemo bo le bong bo kenyelelitsoeng. Liteko tse ling kaofela li ile tsa etsoa mohlala, empa e le li-regressor tse ikhethileng tse neng li sa hlahlojoe ho ea pele. Liphumano ho tsoa ho li-regressor tsa 17-liteko li tlositsoe ho li-ROI tse neng li hlalositsoe pele, tsa lekoa hore li ka phetoa, 'me tsa tlalehoa ho Liphetho.

Ntle le moo, boleng ba data ka kakaretso bo ile ba hlahlojoa lihlopha tsa lilemo ka ho bala palo ea melumo-ho-lerata (SNR) ho e 'ngoe ea li-ventral striatum, dorsal striatum, IFG ROIs e nepahetseng le bokong bohle. Lits'oants'o tsa SNR li ne li thathamisitsoe joalo ka karolelano ea likhakanyo tsa motheo tsa mantlha ho tloha mefuteng ea mantlha ea mantlha e akaretsang le ho kheloha ho tloaelehileng ha linako tse setseng, joalo ka ha ho hlalositsoe ke Murphy le basebetsi mmoho (Murphy et al., 2007) le ts'ebeliso ea rona ea nakong e fetileng mosebetsingJohnstone et al., 2005). Litekanyetso tsa SNR ha lia ka tsa fapana ka tatellano ho fapana le lihlopha tsa lilemo ho e ngoe ea libaka tsena kapa bokong kaofela (tsela e le 'ngoe ANOVA (lilemo: ngoana, mocha, motho e moholo), li-RO tsohle p's> 0.2; boko kaofela p> 0.3). Litekanyetso tsa SNR tsa boko bo felletseng le tsona li kenyellelitsoe e le li-covariate tlhahlobisong ea ts'ebetso ea ts'ebetso ea ts'ebetso ho netefatsa hore liphapang lipakeng tsa lihlooho li ke ke tsa bakoa feela ke liphapang tsa kutloisiso ea data sehlopheng ka seng sa lilemo (bona Liphetho).

Results

Ts'ebetso ea boitšoaro

Mona re tsepamisa maikutlo mefuteng e 'meli ea liphoso tse ka bang teng mosebetsing ona: liphoso (ho hloleha ho tobetsa nakong ea teko) le li-alamo tsa bohata (ho tobetsa ka phoso nakong ea nyeoe ea nogo). Bakeng sa litefiso tsa ho hloloheloa, liphetho tsa 2 (maikutlo: thabo, khutso) ka 3 (lilemo: ngoana, mocha, motho e moholo) ANOVA e tsoakiloeng e hlahisitse tšusumetso e kholo ea maikutlo (F (1,59) = 15.44, p <0.001), litefiso tse kholo tsa ho hloloheloa ha khutso (5.0% +/− 0.6) ha li bapisoa le lifahleho tse thabileng (2.6% +/- 0.4). Leha ho le joalo, liteko tsa phello ea mantlha ea lilemo (F (2,59) = .24, p> 0.7) le lilemo ka tšebelisano ea maikutlo (F (2,59) = .13, p> 0.8) li ne li se bohlokoa, ho fana ka maikutlo litefiso tse lahlehileng ha lia ka tsa fetoloa ka mokhoa o fapaneng ka lilemo molemong oa maikutloSetšoantšo sa 2, litša tsa line ea bohlooho li otlile sekhahla [ho fapana le sekhahla sa tlholohelo] Sena se ile sa ts'ehetsoa hape ke liphetho tse sa reng letho mecheng e ikemetseng ea liteko ho lekola likhahla tse fapaneng tsa ho hloloheloa bakeng sa thabo e amanang le liteko tse khutsitseng ho bana khahlanong le bacha, bacha khahlanong le batho ba baholo, le bana khahlanong le batho ba baholo (kaofela p's> 0.5).

Setšoantšo sa 2

Ts'ebetso ea boitsoaro ka maikutlo le nts'etsopele. Mohala oa Grey o emela karolo ea likotlo tse nepahetseng litekong tsohle tsa ho ea; mohala o motšo o emela karolo ea lialamo tsa bohata litekong tse sa tsamaoeng ho hang. The axis e emela karolo ea likarabo bakeng sa ...

Bakeng sa litekanyetso tsa alamo tsa bohata, re bone phello ea mantlha ea lilemo (F (2,59) = 12.57, p <0.001) le lilemo ka ho sebelisana ha maikutlo (F (2,59) = 3.59, p = 0.034; bana: khutso 28.85 % +/− 4.4, thabile 26.71 +/− 4.2; bacha: 22.1, +/- 3.4, ba thabile 28.4 +/- 4.3, batho ba baholo: khutsa 9.3% +/− 1.5, ba thabile 8.9 +/- 1.7) ebile ha ba na motheo phello ea maikutlo (F (1,59) = 1.18, p> 0.2; Setšoantšo sa 2, mola o motsho). Ho lekola botata ba tšebelisano, re ile ra etsa liteko tse ikemetseng t-liteko ho bapisa litefiso tsa alamo tsa bohata bakeng sa thabo e amanang le liteko tse khutsitseng lilemong tsohle. Bacha ba hlahisitse lialamo tse seng tsa nnete tsa leshano bakeng sa liteko tse khutsitseng ha li bapisoa le bana (t (35) = 2.04, p = 0.049) le batho ba baholo (t (42) = 2.62, p = 0.012). Ho bontšitsoe ka tsela e 'ngoe, lialamo tsa bohata tse etsoang ke bacha li ne li imetsoe haholo maemong a thabileng (thabo ha e bapisoa le khutso t (18) = 2.87, p = 0.01), athe li-alarm tsa bohata tse entsoeng ke bana le batho ba baholo li ne li arolelanoa ka mokhoa o ts'oanang ho polelo e thabileng le e bonolo mefuta (thabile ha o bapisoa le khutso; bana p> 0.5, batho ba baholo p> 0.9). Kamora nako, bakeng sa liteko tse khutsitseng, alamo ea bohata e bonts'itse mokhoa o hlakileng oa ntlafatso ka lilemo tse ntseng li eketseha (nako e lekanang ea F (1,59) = 22.3, p <0.001; quadratic term p> 0.4), athe bakeng sa liteko tse thabisang, quadratic (inverted U ) le likarolo tse fapaneng li hlalositse karolo e kholo ea phapang ea ho arabela (quadratic term F (1,59) = 6.52, p = 0.013; linear F (1,59) = 14.31, p <0.001).

Lintlha tsa nako ea karabelo li fana ka maikutlo a hore lifahleho tse thabileng li tsamaisa likarabo tse potlakileng mabapi le lifahleho tse khutsitseng (ho bolela ho potlaka ho ea ho motho ea thabileng ha a amana le khutso +/ + ho kheloha ho tloaelehileng: 53.5 ms +/- 68 ms; F (1,59) = 36.09, p <0.001). Phello ena e ne e bonahala ho lihlopha tsohle tsa lilemo tse tharo ha li ne li lekoa ka thoko (p's = / <0.01). Lintlha tse hlalosang nako ea karabelo li ka tsela e latelang: bana (ho bolela nako ea karabelo +/- ho kheloha ho tloaelehileng, ka milliseconds; khutso: 767.7 +/- 194; thabile: 710.0 +/- 186), bacha (khutso: 549 +/- 91; thabile : 518.9 +/− 86), batho ba baholo (khutso: 626.4 +/- 100; thabile: 558.0 +/- 66).

Ho lekola hore na liphapang tsa liphapang tsa lihlopha tsa lilemo li ka hlalosoa ke tradeoff e nepahetseng ea lebelo, re ile ra lekola lintlha tsa nako ea karabelo bakeng sa liteko tse nepahetseng tsa `` go '. Ak'haonte ea tradeoff ea ho nepahala ka lebelo e ka hlalosa phapang e fumanoeng ka nepo ho theosa le lilemo haeba maemo a ho nepahala ho futsanehileng le ho feta e ne e le a lebelo ka ho fetisisa. Ha rea ​​fumana bopaki ba ho nepahala ha litlamorao tsa tradeoff hobane ho fapana le se fumanoeng ka nepahalo, tlhahlobo ea tšebelisano lipakeng tsa lilemo le maikutlo linakong tsa karabelo e ne e se bohlokoa (F (2,59) = 1.78, p> 0.15). Ka mantsoe a mang, lihlopha tsohle tse tharo li bonts'itse likarabo tse potlakileng ka ho lekana lifahlehong tse thabileng tse sa kang tsa bonahatsa sephetho se nepahetseng.

Liphetho tsa fMRI

Likarabo tse hlophisitsoeng ke nts'etsopele li fumanoe phello e kholo ea 'mapa oa lilemo, ho kenyeletsoa lesihla ho ventral striatum (x = -4, y = 11, z = -9; p <0.05 svc; Setšoantšo sa 3A). Tlhahlobo ea poso-hoc ea phello e kholo ea lilemo e bontšitse hore bacha ba sebelisitse ventral striatum haholo ho feta bana le batho ba baholo ho sefahleho se thabileng (p's = / <0.01; Setšoantšo sa 3B) le ka mokhoa o fokolang, ho khutsisa lifahleho (p's = / <0.06; ho bolela +/− kheloho e tloaelehileng ea phetoho ea liperesente bakeng sa khutso ha e bapisoa le phomolo: bana: -0.095 +/- 0.21; bacha: 0.046 +/- 0.16; batho ba baholo : -0.051 +/- 0.17). Ts'ebetso ea ts'ebetso e loketseng hantle e emelang ho arabela ho theosa le lilemo ho lifahleho tse thabileng e bontšitse hore ts'ebetso ea quadratic (inverted U) e hlalositse karolo e kholo ea phapang ho arabela lifahleho tse thabileng (F (1,59) = 10.05, p <0.003) athe ts'ebetso e lekanang ha ea ka ea (F (1,59) = 0.54, p> 0.4). Ntlafatso e sa sebetseng ea ho hira bacha e lula e le bohlokoa ha ho laoloa liphapang tsa ts'ebetso ea ts'ebetso (sekhahla sa alamo ea bohata; F (2,59) = 6.77, p <0.002) le tlhahlobisong ea taolo le lipalo tse lekanang (F (2,59) ) = 7.80, p = 0.007). Boholo ba tšebetso ho liteko tse thabisang, liteko tse khutsitseng, le ho se tsamaee ha ho bapisoa le liteko li ne li sa amane le ts'ebetso ea mosebetsi (p's> 0.2).

Setšoantšo sa 3

A) Libaka tsa boko tse bonts'ang phapang e le ts'ebetso ea lilemo. Ts'ebetso, monyako oa p <0.05, svc li etsoa ho skena e emeng ea resolution ea anatomical. B) Morero oa ts'ebetso ho ventral striatum (e potiloe ka A) karabelo ho ...

Phello ea mantlha ea 'mapa oa karabelo (nogo versus go) e supile libaka tse arohaneng ka mokhoa o fapaneng e le ts'ebetso ea taolo ea ts'ebetso ea kelello ho kenyeletsoa le gyrus e ka tlase e ka pele e ka pele (IFG; x = 32, y = 23, z = 3), e bonts'a likarabo tse kholo ho nogo amanang le liteko (p's <0.05, boko bo felletseng bo lokisitsoe; Setšoantšo sa 4A). Post-hoc e sekaseka liteko tsa ts'ebetso e loketseng hantle e bontšitse karabelo e nepahetseng ea IFG e hlalositsoe haholo ke ts'ebetso e ts'oanang (F (1,59) = 4.53, p = 0.037) eseng mosebetsi oa quadratic (F (1,59) =. 17, leq> 0.6). Liphuputso tsa Posthoc li bontšitse hore IFG e nepahetseng e boetse e bonts'a ts'ebetso e kholo ho khutsa kamanong le lifahleho tse thabileng (F (2,59) = 8.95, p <0.005). Ho feta moo, IFG ROI e nepahetseng e bonts'itse phokotso e lekanang ea boholo ba karabelo ka lilemo tse ntseng li eketseha ho liteko tsa nogo tse amanang le liteko (r (61) = -0.28, p = 0.026; Setšoantšo sa 4B).

Setšoantšo sa 4

A) Libaka tsa boko tse bonts'ang mesebetsi e fapaneng e le mosebetsi oa mosebetsi (nogo> go). Ts'ebetso, e thibelletsoeng p <0.05, boko bo felletseng bo lokisoang bo etsoa ho skena e phahameng ea kemiso ea anatomical. B) Morero oa tšebetso ka ho le letona ...

Ha o laola litlamorao tsa ts'ebetso, tšebelisano 'moho ea lilemo le IFG e nepahetseng e ne e se e se bohlokoa (p> 0.4), e bonts'a ts'ebetso e ne e le selelekela se matla sa ts'ebetso ho IFG e nepahetseng ho feta lilemo. Kamano ena e bonts'itsoe ka kamano e kholo lipakeng tsa boholo ba karabelo ho lokisa nogo vs liteko tsa ho ea le ts'ebetso e akaretsang (joalo ka ha e lekantsoe ka sekhahla sa alamo ea bohata; r (61) = 0.39, p = 0.002; bona Setšoantšo sa 4C), e neng e phetoa tlhahlobo ea taolo ka liteko tse lekantsoeng (r (61) = 0.28, p = 0.026). Setšoantšo sa 4C e bonts'a kamano ena le morupeluoa a le mong ntle le ea fumanoeng a le sehlohlolong ka ho fetelletseng (e hlalosoa e le mekhahlelo e fetang e meraro ea li-interquartile kaholimo ho la boraro kapa ka tlase ho boleng ba pele ba quartile) Le ha khokahano e le bohlokoa ho kenyeletsoa motho enoa, ntle le motho enoa e fana ka khokahano e ka bang ea ts'epahalo le ho feta (r (60) = 0.45, p <0.001). Litlhahlobo tsohle tse tlalehiloeng li emela likarabo ho lokisa liteko. Kahoo, batho ba angoa habonolo ke li-alarm tsa bohata ba tloaetse ho bokella IFG e nepahetseng litekong tsa nogo tseo ba atlehileng ho hatella karabelo ea boits'oaro.

Ho hokahanya likhokahanyo

Tlhahlobo ea PPI e hlahisitse sehlopha se le seng sa li-voxel tse bonts'ang khokahanyo e kholo ea ts'ebetso le IFG e nepahetseng bakeng sa liteko tse nepahetseng tsa nogo ho ea litekong. Khokahano ena e tloha haufi le sebaka se nepahetseng sa peo ea IFG ka bohareng le ka morao ho thipa e nepahetseng ea dorsal striatum (x = 9, y = 13, z = 6, bona Setšoantšo sa 5). Liphumano tsena li hlahisa potoloho e sebetsang ka pele ho liteko tse bonts'ang tšebetso e hokahaneng haholo nakong ea liteko moo ho hatelloang karabelo ho neng ho entsoe ka nepo mabapi le liteko tseo ho tsona ho neng ho sa hlokahale karabelo ea karabelo.

Setšoantšo sa 5

Liphetoho tsa tšebeliso ea kelello le mafu a kelello a ipapisitse le sebaka sa peo ho "gyrus" e nepahetseng e tlase. Setšoantšo sa 4A). Dorsal striatum (caudate) e bonts'a ts'ebetso e kholo haholo ea ho ikamahanya le IFG e nepahetseng nakong ea setho sa nogo ...

Tlhahlobo ea kamoso e lekotsoe hore na potoloho ea pele e bonts'a litekanyo tse fapaneng tsa tšebelisano ea nako ho lilemo tsohle bakeng sa setho sa nogo ho ea litekong. Letoto la likhokahano tse lipakeng tsa lithuto tse lipakeng li ile tsa leka tekanyo ea khokahano lipakeng tsa boleng ba melaetsa ea ROI (nogo bapisoa le phapang) ho tsoa ho ventral striatum (e bonts'itsoeng ho Setšoantšo sa 3), IFG e nepahetseng (e bontšitsoeng ho Setšoantšo sa 4) le dorsal striatum (e bonts'itsoeng ho Setšoantšo sa 5) hara sehlopha ka seng. Lintlha tse mabapi le maemo a thabo li khutsufalitsoe ho Setšoantšo sa 6 le ka tlase. Re tsepamisa maikutlo ho boemo bo thabileng hobane "happy-nogo" e amanang le liteko tsa thabo e akaretsa moaho oa kelello oa ho hatella likarabo tsa katamelo ho meputso e ka bang teng. Bana ba bontšitse tšebelisano-'moho lipakeng tsa ventral le dorsal striatum nakong ea liteko tse monate tsa nogo le liteko tsa ho ea (r (17) = 0.41, p = 0.09) athe tšebelisano lipakeng tsa dorsal striatum le tokelo ea IFG e ne e sa ts'epahala (p> 0.12). Ka lehlakoreng le leng, batho ba baholo ba bontšitse tšebelisano e kholo lipakeng tsa dorsal striatum le tokelo IFG (r (24) = 0.49, p = 0.013) empa eseng lipakeng tsa ventral le dorsal striatum (p> 0.8). Bacha ba bontšitse tšebelisano e kholo lipakeng tsa ventral le dorsal striatum (r (18) = 0.57, p = 0.012), hammoho le dorsal striatum le tokelo IFG (r (18) = 0.54, p = 0.016). Likhokahanyo tsohle li ile tsa lula li le bohlokoa likhethong tsa likamano tse sa lekanyetsoang tsa ho lekola liphapang tsa phallo ea boko bo felletseng ho karolelano ea lerata ho bankakarolo ntle le kopanyo ea dorsal striatum-right le IFG ho batho ba baholo, e fetohang tloaelo e se nang thuso.

Setšoantšo sa 6

Lipakeng tsa lithuto tse pakeng tsa lithuto tse peli tse sebetsang li hlahisa liteko tse monate tsa nogo le liteko tse monate tsa ho ea leseeng ho ngoana, lilemong tsa bocha le tsa batho ba baholo. Li-bubble tse ngotsoeng li emela libaka tse bontšitsoeng ho Setšoantšo sa 3 (ventral striatum), Setšoantšo sa 4 (ho le letona IFG) le Figure ...

Puisano

Bokhoni ba ho laola liketso tsa motho bo phephetsoa ka ho khetheha ha a tobana le maikutlo a maholo, a takatso ea lijo. Thutong ena, re ile ra batla ho fana ka bopaki bo matla ba ho fokotsa taolo ea tšusumetso ho bacha ha re tobane le lintlha tse bontšang boleng ba takatso. Re sebelisa mosebetsi o nang le tšusumetso e matla, ea takatso ea lijo (mohlala, lifahleho tse thabileng) tse nolofalletsang likarabo tsa katamelo, re lekile mokhoa oa nts'etsopele ea bokhoni ba lithuto ho atamela habonolo kapa ho qoba tšusumetso e ntle kapa e sa nke lehlakore ka mokhoa o itšetlehileng ka maemo. Re fumane hore bacha ba bontšitse mokhoa o ikhethileng oa liphoso tse amanang le bana le batho ba baholo, tse khetholloang ke phokotso ea bokhoni ba ho hatella boits'oaro bo lebisang ho motho ea ikhethang, ea nang le takatso ea lijo.

Liphumano tsena tsa boits'oaro li bonts'a hore le ha bacha ba ka hatella boits'oaro maemong a sa jeleng paate molemong oa boiphihlelo ho bana le batho ba baholo, ba bonts'a ho hloleha ho fetelletseng ha sepheo sa ho rata litakatso. Liphumano tsena li ke ke tsa hlalosoa feela ke litlamorao tsa khoebo tse potlakileng, hobane e mong le e mong oa batho ba lilemo tse tharo o bonts'itse ts'ebetso e potlakileng ho thaba ho feta ho se nke lehlakore, e neng e sa rere hore motho o tla sebetsa hampe. Sebopeho sena sa boits'oaro se lumellana le litlaleho tsa khopolo ea bacha lilemong tsa ho ba le tšekamelo ea ho nka boits'oaro bo kotsi mosebetsing oa ho fumana meputso e ka ba teng (Steinberg, 2004) 'me e fetohe le mehlala ea liphoofolo e bontšang nts'etsopele e batloang nakong ea ntlafatso e ka bapisoang le bocha (Spear, 2000). Morao tjena, Cauffman le basebetsi-'moho (2010) o sebelisitse letoto la mesebetsi ea ho etsa liqeto ka moroalo o fapaneng oa moputso mme o bonts'a hore maikutlo a moputso a bonts'a mosebetsi o fapaneng oa U o emeng, o nyolohela sehlohlolong ho tloha lilemong tsa 14-16 tsa lilemo mme oa theoha. Lipontšo tsa laboratori tsa tšusumetso e mpe ea tšusumetso ho bacha (bona hape Figner, Mackinlay, Wilkening, & Weber, 2009) e tiisa qeto ea hore boits'oaro bo nkang kotsi ea ho kena bohlankaneng ha se feela mosebetsi oa liphetoho lipolotiking kapa kalafong ea sechaba (mohlala, Epstein, 2007, bona Dahl, 2004 bakeng sa lipuisano tse ling). Hape ha e hlahisoe feela ke bokhoni ba kemiso ea bokhoni ba kelello (Yurgelun-Todd, 2007), joalo ka likarolo tse susumetsang tsa tikoloho li susumetsa bokhoni ba ho laola boitšoaro maemong a fanoeng. Ho fapana le moo, mosebetsi ona o fana ka maikutlo a hore mekhoa ea ho fetoha ha maemo le maemo e sebetsang e sebelisana ho susumetsa tšusumetso ho ipeheng kotsing ea lilemong tsa bocha (Casey, Getz, et al., 2008; Steinberg, 2008). Liphetho tsa hajoale tsa boits'oaro li fana ka maikutlo a hore ha ho hlokahala ho hatella mokhoa oa boits'oaro ho mekhoa e metle ea takatso ea lijo, ts'ebetso ea bacha e bonts'a ts'oaetso e sa bonoeng lihlopheng tse ling tsa lilemo.

Liphetho tsa boits'oaro li lebisa likhopolong tsa neurobiological mabapi le phapang e fapaneng ea taolo ea ts'ebeliso ea kelello le litsamaiso tse susumetsang. Ho ipapisitsoe le mosebetsi o seng oa botho le oa batho ho fihlela joale, re ile ra lebisa tlhokomelo ho potoloho ea pele le pele e le libaka tse ikhethileng tseo ho nahanoang hore litšebelisano tse matla tsa nts'etsopele li hokahanya bokhoni ba bacha ba ho hana ho atamela meputso e ka bang teng (Somerville le Casey, 2010). Re hlokometse sebaka sa "" ventral striatum "se bonts'ang mokhoa o mongata oa ho ikamahanya le mesebetsi e mengata ho bacha ho lifahleho tse thabileng. Ho fumana hona ho fetoha le mosebetsi oa pele o bonts'ang setšoantšo se fetelletseng sa meputso ea meputso ho bacha. Mohlala, ho fumana tefo ea chelete ho lebisitse ho likarabo tse fetelletseng maemong a kenang a bacha a bapisoang le batho ba baholo (Ernst, et al., 2005) le bana (Galvan, et al., 2006; Van Leijenhorst, et al., 2009). Se amanang le batho ba baholo, bacha ba bonts'a tšebetso e ntlafalitsoeng ea boikoetliso ha ba ntse ba itokisetsa nyeoe e leng moputso o kotsing (Geier, et al., 2010), ho fana ka tlhahiso ea ho nyolla mekhoa e susumetsoang maemong a kenang ka hare ho bacha. Ntle le moo, re hlokometse karabelo e kholo ka ho fetesisa ea ho se nke lehlakore lifahleho ho bacha lilemong tsa "ventral striatum", leha re le maemong a fokolang ho feta lifahleho tse thabileng. Mokhoa ona o fana ka maikutlo a hore le ha takatso ea maikutlo a khothalletsang batho ho fumana karabelo ea moea ka boqhetseke, ho nka karolo ha litho tsa bocha le ho feta ho ka supa matšoao a amanang le bana le batho ba baholo.

Ho bapisa nogo ho ea litekong ho nolofalelitse karohano ea likarabo ho liteko tseo khatello e neng e tšoaretsoe ka nepo (liteko tsa nogo) tse amanang le liteko tseo ho tsona tlhoko ea taolo ea kelello e neng e le tlase. Re lokela ho hlokomela hore joalo ka mosebetsing o fetileng (Durston, Davidson, et al., 2003; Hare, et al., 2005; Hare, et al., 2008), liteko tsa liphoso li entsoe ka thoko, 'me ka hona ho se tšoane ha tšebetso mona ho emetse tse hatisitsoeng ka nepo. Nakong ea liteko tsa nogo, re hlokometse ho hloaea batho ba baholo ho feta pele. Ketsahalo ea pele-pele e boetse e boletse ts'ebetso, e le hore batho ba neng ba sa atleha ho hatella likarabo tsa mokhoa oa ho hatella ba bonts'a ts'ebetso ea IFG e nepahetseng bakeng sa liteko tsa khatello tsa katleho. Mokhoa ona o lumellana le mosebetsi oa pele o sebelisang "nogo paradigm"Durston, Davidson, et al., 2003; Durston, Thomas, Yang, et al., 2002; Luna & Sweeney, 2004), ho tlaleha boitlamo ba mofuta o tlase oa botšehali bakeng sa liteko tseo ho tsona khatello e ileng ea kopuoa ka nepo. Kamano lipakeng tsa tšebetso le tšebetso e bonts'a hore lisebelisoa tsa taolo ea pele li ne li ts'oaroe ka tekanyo e kholo ho batho ba neng ba thatafalloa haholo ke ho fihlela karabelo (ke hore, barupeluoa ba banyenyane).

Ka kakaretso, ho na le tumellano e fokolang ho lingoliloeng mabapi le mofuta oa liphetoho tsa ho bokella libaka tsa pele ho litekanyetso tsa tlhoko ea kelello. Phuputsong ea hajoale, re ne re tšepile liphapang tsa ts'ebetso ea boitšoaro ho toloka liphetoho tse amanang le lilemo ho matla a ts'ebetso. Lithuto tse ling, tse lumellanang le se hlahisoang mona, li bontšitse ho hola hanyane ka hanyane libakeng tsa pele tsa cortical ka lilemo tse ntseng li eketseha (Hardin, et al., 2009; Velanova, Wheeler, & Luna, 2008). Paterone ena e ka hlalosoa e le khethollo e nyane ho batho ba banyenyane e lebisang ho kenelletseng ho kenelletseng (Durston, et al., 2006). Ho hloa le ho feta lilemong tsa bocha e kanna ea ba lebaka la tlhokeho e eketsehang ea kelello ea batho ba banyenyane hore ba phethe mosebetsi o tšoanang le oa batho ba baholo joalo ka ha ho laetsoe ke Velanova le basebetsi-'moho (2008) e ipapisitse le liphuputso tse ts'oanang ho sebelisoa mosebetsi o khahlanong le papali. Ha re sebelisa ho se tšoane ha tšebetso, re hlokometse hore ho hiroa ho hoholo ho bankakarolo ba neng ba e-na le liphoso tse ngata ka ho fetesisa tsa alamo tse tšehetsang tlhaloso ena. Leha ho le joalo, ho lokela ho hlokomeloa hore ho ntse ho na le ngangisano mabapi le hore na ts'ebetso e matla kapa e fokolang ke sesupo sa `kholo ea kholo '(Bunge le Wright, 2007; Luna, Padmanabhan, & O'Hearn, 2010) joalo ka ha mosebetsi o mong o khothalelitse tšebetso e kholo-kholo e le sesupo sa phetoho e sebetsang (Klingberg, Forssberg, & Westerberg, 2002; Bunge, Dudukovic, Thomason, Vaidya, le Gabrieli, 2002; Rubia, et al., 2006; Crone, Wendelken, Donohue, van Leijenhorst, & Bunge, 2006). Mosebetsi oa nts'etsopele ea nako e tlang o tla hlokahala ho tsebisa bothata bona ka botlalo.

Tlhahlobo ea khokahano e bonts'a potoloho ea kapele, haholo le karolo e nepahetseng ea dorsal caudate le e ka tlase e bonts'ang ts'ebetso e kopanetsoeng nakong ea liteko tse nepahetseng tsa khatello e amanang le liteko tse sa hlokeng khatello. Tšebelisano-'ngoe ea Striatocortical e bontšitsoe mesebetsing le linthong tse fapaneng e le karolo ea bohlokoa ho phethahatseng melao ea boitšoaro e tataisoang ke sepheo (Delgado, et al., 2004; Durston, Thomas, Yang, et al., 2002; Schultz, Tremblay, le Hollerman, 2000), mme haholoholo molemong oa ho hatella litšusumetso (Miller & Cohen, 2001). Tšebelisano lipakeng tsa dorsal striatum le preortal cortex e bontšitsoe li-primates ho ba bohlokoa ho kopanya mekhatlo ea moputso le tlhahiso ea boitšoaro (Pasupathy & Miller, 2005), sepheo se bapisoang le lingoliloeng tsa batho ba baholo (Galvan, et al., 2005; Poldrack, Prabhakaran, Seger, le Gabrieli, 1999). Nts'etsopele, ho nka karolo ha li-circuits tsa litokelo tsa mantlha li tšehetsa khatello ea karabelo e susumetsang ho bana le ho batho ba baholo (Casey, et al., 1997; Durston, Thomas, Worden, Yang, & Casey, 2002; Durston, Thomas, Yang, et al., 2002) mme li arabela ka tsela e nepahetseng maemong a taolo a susumetsang a kang ADHD (Casey, et al., 2007; Durston, Tottenham, et al., 2003; Epstein, et al., 2007; Vaidya, et al., 1998). Liphetho tsena li tšehetsa karolo e akaretsang bakeng sa potoloho ena molemong oa liketso tse ikemiselitseng sepheo.

Kamora ho hlalosa potoloho ena, re ile ra leka liteko tsa khethollo ea lipakeng tsa bana, bacha le ba baholo. Boholo ba batho ba baholo le ba bacha ba bontšitse likarabo tsa bohlokoa lipakeng tsa li-karabo tsa maikutlo a litekanyetso tsa pelehi. Ka mantsoe a mang, barupeluoa ba baholo le ba lilemong tsa bocha ba neng ba rata ho etsa dorsal striatum hape ba ne ba tloaetse ho etsa karolo e ka tlase e ka pele ea sefahleho ha ba hatella mokhoa o nepahetseng mabapi le lifahleho tse thabileng. Le ha e se ka kotloloho, liphuputso tsena li ts'ehetsa maikutlo a hore likarabo tsa maemo a holimo li bonts'a mokhatlo o hlophisitsoeng o sebetsang ho bacha le batho ba baholo ba amanang le bana. Ho barupeluoa ba lilemong tsa bocha, karabelo ena ea pele-pele e ne e boetse e tsamaisana le ho kopanya ho bohlokoa ha moea oa bohloeki. Ho ipapisitsoe le se tsejoang ka potoloho ena (Haber, Kim, Mailly, & Calzavara, 2006), re hakanya hore bacha ba neng ba tloaetse ho kenya tšebetsong matla a ho kenella ka hare ho naha, ba boetse ba hloka ts'ebetso e kholo ea dorsal pele-pele bakeng sa ho hatella mokhoa o nepahetseng litloaelong tse ntle.

Likamano lipakeng tsa ventral striatum, dorsal striatum, le prefrontal cortex li bohlokoa thutong, polelo le taolo ea boitšoaro bo susumetsoang. Ka 'nete, batho ba nang le lefu la Parkinson ba nang le ts'itiso e kholo ea ts'ebetso ea bokhachane ba bontša likhaello tse khethollang ho khetholla le ho khetha tlhaiso-leseling e amehang tikolohong (Liphoso, Ivry, & D'Espostio, 2006). Ka ho latela likarolo tsa projeke ea anatomiki, mosebetsi oa Haber le basebetsi mmoho (Haber, et al., 2006) e ts'oants'itse "dorsal striatum" joalo ka mokhoa oa bohlokoa oa ho kenyelletsa boleng ba boleng bo loketseng ho tsoa ho boemo ba moea, le lipontšo tse tsoang libakeng tsa boko tse bohlokoa bakeng sa taolo ea kelello, ho kenyelletsa le "cortex" ea pele. Haber & Knutson, 2009). Ntle le moo, ho buoa ka "parallel" striatocortical loops tse amehang mefuteng e fapaneng ea boitsoaro bo tataisang sepheo (koloi, oculomotor, susumetso e susumetsang, e susumetsoang ke sepheo kapa e susumetsang) ke khale ba khothalelitsoe ho bua ka boemo ba basal ganglia (Alexander & Crutcher, 1990; Casey, 2000; Casey, Durston, & Fossella, 2001; Casey, Tottenham le Fossella, 2002). Seo re se fumaneng se lumellana le khethollo ea loop ena lipakeng tsa striatum, ha lits'ebetso tsa subcortical li bonahala li fihla tsebong e matla mme re fana ka maikutlo a hore le ha ho tšoaea libaka tse tlase ho hlaha hanyane ka hanyane, ho tloha holimo ho saena ho tsoa libakeng tsena tse laoloang ho kanna ha qaptjoa haholoanyane.

sheba mefokolo ea

Se fumanoeng mona se lokela ho nahanoa ka mefokolo ea bona. Taba ea pele, ho lokela ho amoheloa ka ho hlaka hore sehlopha sa boraro sa maikutlo, lifahleho tse tšosang, se ne se le teng nakong ea mosebetsi oa liteko le sepheo sa tlaleho e fetileng (Hare et al., 2008). Boemo bo khutsitseng ba sefahleho bo sebelitse e le boemo ba taolo litlalehong ka bobeli. Le ha liphumano tsa boits'oaro li bonts'a ho ba teng ha sefahleho se tšabehang ho ts'ebetso ea ts'ebetso ho ne ho sa hlophise ho nepahala ha boits'oaro ho fapana le likarolo tse ling tse peli tsa maikutlo, ho ka etsahala hore ho ba teng ha lifahleho tse nang le tšabo ho susumetse liphumano ka mekhoa eo mehato e neng e le teng e neng e sa utloahale. Ntle le moo, lifahleho tse thabileng li fapana le lifahleho tse khutsitseng tse bohloka le boteng, tseo ka bobeli li neng li ka tlatsetsa ho litlamorao tse bonoang tsa boleng ba takatso ea lijo. Sekhahla sa mokhoa oa bobeli ke ts'ebeliso ea lifahleho tse khutsitseng joalo ka maemo. Leha data e tloaelehileng e fana ka maikutlo a hore lifahleho tse khutsitseng ha li ntle ebile li monate ha li le lifahleho tse thabileng (Tottenham et al., 2009), ha re a ka ra bokella lintlha tsena ka mokhoa o hlakileng 'me ho ka etsahala hore lifahleho tse khutsitseng li hlalosoe li le bonolo ka tokelo ea tsona. Mabapi le liphetho, mofuta o ikhethileng oa liphetho tsa coactivation le ona o lokela ho ananeloa. Kamora nako, mehato ea boemo ba pubertal le li-hormone tsa endo native ha lia ka tsa fumanoa. Patlisiso ea semina e bontšitse mekhoa eo li-hormone tsa gonadal tse potang li amang mekhoa ea mokhatlo le ts'ebetso ho susumetsa ts'ebetso ea ts'ebetso ea boko ho ntlafatseng (Romeo & Sisk, 2001; Sisk & Foster, 2004; Steinberg, 2008) 'me e bonts'e kamano ea ho bonela pele lipakeng tsa boemo ba phatlalatso le boits'oaro bo joalo ba takatso ea takatso ea takatso le tlhekefetso ea lithethefatsi (Martin et al., 2002;; bona Forbes & Dahl, 2010). Patlisiso ea nako e tlang ho kenyelletsa litekanyetso tsa lihormone e ka tsebisa kamano lipakeng tsa nts'etsopele ea striatocortical, ho holofala ha lihormone le sephetho sa boitšoaro (Blakemore, Burnett, & Dahl, 2010).

fihlela qeto e

Nako ea bocha e hlalositsoe e le nako ea ho nchafatsa litaba tsa sechaba (Nelson, Leibenluft, McClure, & Pine, 2005.) Ka tšubuhlellano ena e lekanyelitsoeng ea tokoloho ho tla tlhoko e eketsehang ea ho laola boitšoaro ba hau, bo fapaneng le bongoana ha boits'oaro bo ba thata ho batsoali le bahlokomeli ba bang. Leha matla a taolo ea kelello a sa tsitsang hangata a nkuoa e le tlhaloso e lekaneng bakeng sa tšubuhlellano ea bacha lilemong tsa boits'oaro bo kotsi, ho na le bopaki bo ntseng bo hola bo kenyeletsang liphuputso tsa hajoale tse kenyelletsang lits'oants'o tse hlohlelletsang bocha lilemong tsa bocha, boemong ba boits'oaro le methapo ea kutlo. Ehlile, tokoloho e batlang e le kholoanyane nakong ena e ka ts'ehetsa tšusumetso e matla haholoanyane, kaha boipuso le bona bo nolofalletsa monyetla oa ho batla boiphihlelo bo ka bang molemo. Ts'usumetso ena ea mokhoa e kanna ea ts'ehetsoa ke lets'oao le matla la subcortical la ventral striatum. Ha e beoa maemong ao ho ona motho a tlamehang ho laola boits'oaro ba hae, ho hloleha ho laola - tse ling tse hlahisang boits'oaro bo kotsi - e kanna ea ba sehlahisoa sa sistimi ea taolo ea pele ho moo e se nang boiphihlelo mme ka hona e sa sebetse hantle. Ha nako e ntse e feta, boiphihlelo bo bopa bokhoni ba ho laola mekhoa ena ea boits'oaro, e fetelang boemong ba botsitso bo boholo lipakeng tsa katamelo e matla le lipontšo tsa taolo tsa lisekete le ho matlafatsa bokhoni ba ho hanela moleko.

Liteboho

Re leboha ka kananelo thuso ea Doug Ballon, Adriana Galvan, Gary Glover, Victoria Libby, Erika Ruberry, Theresa Teslovich, Nim Tottenham, Henning Voss, le mehloli ea basebetsi le basebetsi ba Biomedical Imaging Core Center ea Setsi sa Boitšoaro sa Biigedo sa Weig Cornell. Koetliso ea bongaka. Mosebetsi ona o tšehelitsoe ke National Institute of Mental Health grants P50MH062196 le lithuso tsa National Institute of Drug Abuse Grants R50DA079513 le T01DA018879, le National Institute of Mental Health Fsoci F32MH007274, hammoho le KHNUMX.

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