Orbitofrontal Cortex Qeto Ho Etsa le ho Sebelisa Lithethefatsi Lithethefatsi (2006)

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Cortex ea orbitofrontal, joalo ka karolo ea preortal cortex, e na le tšusumetso mosebetsing oa botsamaisi. Leha ho le joalo, kahara sebaka sena se pharaletseng, orbitofrontal cortex e khetholloa ka mokhoa oa eona o ikhethang oa khokahano le libaka tsa bohlokoa tsa subcortical tse amanang le ho ithuta, joalo ka basolateral amygdala le li-nucleus accumbens. Ka lebaka la likhokahano tsena, orbitofrontal cortex e hlophisitsoe ka mokhoa o ikhethileng ho sebelisa tlhaiso-leseling ho rera bokamoso, le ho sebelisa boleng ba liphetho tse nahannoeng kapa tse lebelletsoeng ho tataisa liqeto. Tlhahlobo ena e tla bua ka bopaki ba morao-rao bo tšehetsang tlhahiso ena mme e tla hlahloba bopaki ba hore tahlehelo ea lets'oao lena, ka lebaka la liphetoho tse tlisoang ke lithethefatsi makaleng ana a boko, li ka ikarabella bakeng sa ho etsa liqeto tse fosahetseng tse supang ho lemalla lithethefatsi.

Selelekela

Bokhoni ba rona ba ho theha litebello mabapi le ho lakatsa kapa boleng ba liketsahalo tse tlang pele ho tlasa maikutlo a rona le boits'oaro ba rona. Ebile, mesebetsi e 'meli e pharalletseng e tšehelitsoe ka boomo ke ho theha litebello tse joalo. Ka lehlakoreng le leng, litebello li tataisa boitšoaro ba rona kapele, li re lumella ho phehella lipheo le ho qoba likotsi tse ka re hlahelang. Ka lehlakoreng le leng, litebello li ka tšoantšoa le liphetho tsa sebele tsa ho nolofalletsa ho ithuta hore boitšoaro ba kamoso bo fetohe bocha. Ts'ebetso tsena ka bobeli li hloka hore tlhahisoleseling mabapi le liphetho tse lebelletsoeng e bolokoe mohopolong e le hore e ka bapisoa le ho kopanngoa le tlhahisoleseling mabapi le boemo ba ka hare le lipheo tsa hona joale. Ts'ebetso e joalo e kopantseng e hlahisa letšoao leo re tla le bua joalo ka tebello ea sephetho, polelo e sebelisitsoeng nako e telele ke baithuto ba thuto ho bua ka kemiso e ka hare ea litlamorao tse ka latelang ketso e itseng [1]. Ho sitisoa ha letšoao le joalo ho ka lebelloa ho baka mathata a mangata, bokhoni ba ho etsa liqeto tse lumellanang le ho ithuta ho tsoa liphellong tse mpe tsa liqeto. Thutong ena, re qala ho hlalosa bopaki ba morao-rao ba hore orbitofrontal cortex (OFC) e bapala karolo ea bohlokoa molokong le tšebelisong ea litebello tsa sephetho. Kamora nako, re tla tšohla bopaki ba haufinyane ba hore liqeto tse mpe tse supang bokhoba ba lithethefatsi li bontša, karolo e 'ngoe, tšitiso ea lets'oao lena ka lebaka la liphetoho tse susumetsoang ke lithethefatsi ho OFC le libakeng tse amanang le boko.

Ts'ebetso ea Neural ho OFC le boits'oaro bo itšetlehileng ka OFC li bonts'a karolo ea bohlokoa ea OFC molatong oa litebello tsa sephetho

Bokhoni ba ho boloka tlhaiso-leseling e le hore bo ka fetoloa, bo kopantsoe le tlhaiso-leseling e 'ngoe ebe bo sebelisoa ho tataisa boitsoaro bo hlalositsoe ka mokhoa o fapaneng e le ho sebetsa, ho hlohlona kapa ho emela mohopolo,' me ho its'etleha ka kotloloho ho cortex ea pele.2]. Kahare ho "cortex" e ka pele-pele, OFC, ka ho hokahana le libaka tse nang le maoto, e behiloe ka mokhoa o ikhethileng bakeng sa ho etsa tlhaiso-leseling e amanang le sephetho kapa litlamorao ho fihlella mohopolo oa boemeli (lebokose 1). Kannete palo e ntseng e eketseha ea liphuputso e fana ka maikutlo a hore mokhoa oa tlhahiso ea neural oa boleng bo lebelletsoeng ba sephetho o teng mme mohlomong o hlahisoa ho OFC. Mohlala, lithuto tsa neuroimaging tsa batho li bonts'a hore phallo ea phallo ea mali ho OFC nakong ea ts'episo ea sephetho se lebelletsoeng hape le ha boleng ba sephetho se lebelletsoeng bo fetoloa kapa bo sa tlisoe [3-6]. Ts'ebetso ena e bonahala e bonts'a boleng ba ts'usumetso ea lintho tsena mme e bonoa ha tlhahisoleseling eo e sebelisoa ho tsamaisa liqeto [7]. Liphetho tsena li fana ka maikutlo a hore li-neuron tse ho OFC li eketsa ts'ebetso ha tlhahisoleseling e joalo e sebetsoa. Ka hona, ts'ebetso ea neural ho OFC e etelletseng pele moputso kapa likotlo e ea eketseha, hangata e bonts'a boleng ba khothatso ea liphetho tsena [8-11]. Mohlala, ha litšoene li hlahisoa ka litheko tse bonoang tse khabisitsoeng ka meputso e khethiloeng ka mokhoa o fapaneng, li-neuron ka har'a mollo oa OFC ka khetho ho latela hore na sephetho se lebelletsoeng ke moputso o ratoang kapa o sa khethoang kahare ho block block eo [10]. Ho feta moo, Roesch le Olson [11] li sa tsoa supa hore ho thunya ho OFC ho latela metro e meng e mengata ea boleng ba sephetho. Mohlala, li-neurons li chesa ka tsela e fapaneng bakeng sa moputso ho latela boholo ba eona bo lebelletsoeng, nako e lebelletsoeng e hlokahalang ho e fumana le litlamorao tse ka hlahang tse amanang le boitšoaro bo sa lokang [11,12].

Lebokose 1. The anatomy ea potoloho ea orbitofrontal ka likhoto le litlha tsa pelehi

Rose le Woolsey [53] e hlahisitse hore cortex ea pele e ka hlalosoang ke lipono tsa mediodorsal thalamus (MD) ho fapana le ka 'stratiographic analog' [54]. Tlhaloso ena e fana ka motheo oa ho hlalosa lipale tsa mahae tsa pele ho mefuta eohle. Leha ho le joalo, ke lintho tse tšoanang tse sebetsang ka ho hlaka tse hlalosang libaka tsa mahae (Setšoantšo sa 1 sa lebokose lena).

Rot, MD e ka aroloa likarolo tse tharo [55,56]. Litekanyetso ho tsoa likarolo tsa methapo le methapo ea MD li hlalosa sebaka se kenyelletsang libaka tsa orbital le li-cortices tse kenang ka hare tsa sebaka sa heno [dorsal agranular insular cortices [55-58]. Libaka tsena tsa MD ho ratoa li fumana lipuisano ka kotlolloho ho tsoa sebakeng sa amygdala, medial temporal lobe, ventral pallidum le ventral tegmental, 'me ba amohela litlatsetso tse tsoang piriform cortex [55,56,59]. Mokhoa ona oa ho hokahana o ts'oana le karolo ea MD e fumanehang ka bongata, e hlalosang karohano ea mantlha ea orbital lithutong tsa mantlha [60-62]. Kahoo, sebaka se hlalositsoeng sebakeng sa orbital sa "pre prealal cortex" se ka khona ho fumana phepelo e tsoang ho thalamus e ts'oanang haholo le ea ho fihlela prortal orbital prefrontal cortex. Motheong oa karolo e 'ngoe ea mokhoa ona oa ho kenya letsoho, libaka tsa makhulo a MD a mantlha le a bohareng libakeng tsa mantlha tsa cortex ea rat e se e hlahisitsoe e le taba ea mantlha ho tikoloho ea bohloeki ea morao-rao [55,57,63-65]. Libaka tsena tse litoeba li kenyelletsa sebaka sa dorsal le ventral agranular insular cortex, le libaka tsa morao-rao tsa ventrolateral orbital. Mohopolo ona oa "rat orbitofrontal cortex" (OFC) ha o kenyeletse cortex ea medial kapa ventromedial orbital, e pela lebota la medial la hemisphere. Sebaka sena se na le mekhoa ea khokahano le MD le libaka tse ling tse tšoanang hantle le libaka tse ling tse leboteng la medical.

Likhokahano tse ling tsa bohlokoa li totobatsa ho tšoana lipakeng tsa rat la OFC le prC OFC. Mohlomong e hlokomelehang haholo ke khokahano ea boiphetetso le thero ea basolateral ea amygdala (ABL), sebaka seo ho nahanoang hore se nka karolo litabeng tsa ho ithuta kapa tse susumetsang tsa ho ithuta [66-74]. Karolong ea morao-rao, likhokahano tsena li kopantsoe hore li hlalose ho tšoana ho itseng ho tlhekefetso ea boits'oaro ho bakoang ke tšenyo ea OFC kapa ea ABL [14,17,75-77]. Khokahano ea boiphetetso pakeng tsa amygdala ea basolateral le libaka tse ka hare ho rat ea OFC, haholo-holo cortex ea agranular insular58,78-80], fana ka maikutlo a hore ho sebelisana pakeng tsa meaho ena ho ka ba bohlokoa ka mokhoa o tšoanang bakeng sa taolo ea mesebetsi ea boits'oaro ho likhoto. Ntle le moo, litorong le lithutong tse peli, OFC e fana ka ts'ebetso e matla ea bokhothokhotho ba li-nucleus tse bokellanang, tse fetang ka tšibollo ea meaho e tsoang metsong ea maoto joalo ka ABL le subiculum [81-84]. Potoloho e khethehileng e kopanyang OFC, sebopeho sa limbic le li-nucleus li hlahisa ntho e ts'oanang e ts'oanang ho mefuta e bonts'ang ho ts'oana ha litšebelisano tse sebetsang har'a likarolo tsena tse kholo tsa bokapele [81,84,85].

Setšoantšo sa I

Faele e kantle e nang le setšoantšo, papiso, joalo-joalo Lebitso la ntho ke nihms52727f4.jpg

Kamano ea anatomical ea OFC (e putsoa) ka likhoto le litšoene. Ho latela mohlala oa bona oa ho hokahana le mediodorsal thalamus (MD, botala), amygdala (lamunu) le striatum (pinki), libaka tse sa bonahaleng tsa orbital le agranular tse ka hare ho cortex ea rat predomal li monate ho boemo ba preC ea preortal. Ka mefuta ena ka bobeli, OFC e amohela litlatsetso tse matla ho tsoa ho sensory cortices le tlhaiso-leseling e amanang le eona ho tsoa ho amygdala, mme e romella liphetho ho sisteme ea makoloi ka striatum. Lebokose le leng le le leng le bontša karolo ea boemeli ba 'mele. Likarolo tse ling tsa tlatsetso: AId, dorsal agranular insula; AIv, ventral agranular insula; c, bohareng; CD, caudate; LO, orbital ea morao-rao; m, medial; NAc, li-nucleus li bokella mantlha; rABL, rostral basolateral amygdala; VO, li-orbital tse kenang kahare, ho kenyelletsa libaka tsa ventrolateral le ventromedial orbital; VP, ventral pallidum.

Ts'ebetso e joalo ea ho lebella e bonahala e le karolo e tloaelehileng ea ts'ebetso ea ho thunya ka har'a OFC mesebetsing e mengata eo ho eona liketsahalo li etsahala ka tatellano, 'me ka hona li ka reroang, (lebokose 2). Habohlokoa, leha ho le joalo, likarabo tsena tse khethiloeng li ka bonoa ho se na mekhoa ea ho supa, 'me li fumanoa ha liphoofolo li ithuta hore mekhoa e itseng e bolela esale pele sephetho se itseng. Ka mantsoe a mang, ketsahalo ena e khethang e emela tebello ea phoofolo, ho latela boiphihlelo, le litholoana tse ka bang teng. Litšobotsi tsena li bontšoa ka har'a Setšoantšo sa 1, e bonts'a karabelo ea baahi ea li-neuron tsa OFC tse tlalehiloeng ka har'a litoeba ha ba ntse ba ithuta le ho fetola mathata a khethollo ea khethollo ea nov [8,9,13]. Mosebetsing ona o bonolo, rat lokela ho ithuta hore monko o mong o bolela moputso ka selibeng se haufi sa metsi, athe monko o mong o bolela kotlo esale pele. Qalong ea ho ithuta, li-neuron ho OFC li arabela ho e 'ngoe empa ha li fihle sephethong se seng. Ka nako e ts'oanang, li-neuron le tsona li qala ho arabela ka ho lebella sephetho sa tsona se ratoang. Phuputsong e 'maloa, 15-20% ea li-neuron tse ho OFC e ntlafalitse mosebetsi o joalo mosebetsing ona, e thunya ka tebello ea ho hlaha ka mokhoa oa sucrose kapa oa quinine [8,9,13]. Ts'ebetso ho baahi bana ba neural e bonts'a boleng ba sephetho se lebelletsoeng, se bolokiloeng ho seo re se hlalositseng mona e le memori ea boemeli.

Lebokose 2. Ts'ebetso ea Orbitof Pambal e fana ka pontšo e tsoelang pele ea boleng ba liketsahalo tse tlang

Orbitof Pambal cortex (OFC) e boemong bo loketseng ba ho sebelisa tlhaiso-leseling e amanang le eona ho bolela esale pele ebe e supa boleng ba liketsahalo tsa kamoso. Leha temana ea sehlooho ea tlhahlobo ena e shebile tšebetso nakong ea nako ea ho lieha pele ho moputso ho khetholla letšoao lena, khakanyo e matla ea phehisano ena ke hore ts'ebetso ho OFC e kenyelletsa lets'oao lena nakong eohle ea ts'ebetso. Ka hona, OFC e fana ka tlhahiso ea maikutlo mabapi le boleng bo lekanang ba mmuso oa hona joale le oa lithuto tse ka nahanoang tse hlokoang.

Karolo ena e bonahala ts'ebetsong ea ho thunya ea li-neuron tsa OFC nakong ea sampole ea li-cue tse boletsoeng esale pele ka moputso kapa kotlo [86-88]. Mohlala, ho litoeba tse koetliselitsoeng ho etsa mosebetsi oa khethollo ea mahaloro a robeli, moo makhopho a mane a amanang le moputso mme mehoo e mene e amanang le tefo e seng moputso, li-neuron tsa OFC li ile tsa susumetsoa ka matla ke bohlokoa bo kopaneng ba litumelo tse mpe ho fapana le boitsebiso ba monko oa nnete [87]. Ehlile haeba boitsebiso ba monko bo entsoe bo sa amehe, li-neuron tsa OFC li tla iphapanyetsa tšobotsi ena ea maikutlo ea cue. Sena se bontšitsoe ke Ramus le Eichenbaum [89], ea koetliselitseng likhoto ho monko o robeli o ntseng o lieha ho etsa mohlala, oo ho oona mochini o nepahetseng o amanang le moputso ha se monko o monate empa ke papiso e 'bapisang' kapa 'e sa ts'oaneng' pakeng tsa sefuba ho teko ea hajoale le e fetileng. Ba fumane hore 64% ea li-neurons tse arabelang e khetholotse papali ena-e seng papali, athe 16% feela e ile ea thunya ho o mong oa monko.

Leha ho le joalo, ho khetha ho hlasela ka mokhoa o ikhethileng e le mokhoa oa ho kopanya o kopanyang, re fana ka maikutlo a hore tšebetso ena ea methapo e emetse tlhahlobo e tsoelang pele ea liphetho tse ka hlahang ke phoofolo. Kahoo, ho thunngoa ha li-neuron tsena ha ho supe feela taba ea hore senotlolo se itseng se kopantsoe ka ts'epahalo le sephetho se itseng nakong e fetileng, empa ho e-na le hoo se bonahatsa kahlolo ea phoofolo e fuoeng maemo a hona joale, e sebetsang ka tlhaiso-leseling eo. lebisa ho sephetho seo nakong e tlang. Kahlolo ena e emeloa e le boleng ba sephetho se ikhethang se amanang le sepheo kapa litakatso tsa kahare, 'me litebello tsena li lula li ntlafatsoa khafetsa. Kahoo, ho thunngoa ho OFC ho bonts'a boleng bo lebelletsoeng ba mmuso o latelang bo tla hlahisoa ho fanoa ka karabelo e itseng, ekaba mmuso oo ke mohatelli ea ka sehloohong kapa ke mohato feela o lebisang pakane ea mantlha. Tumellanong le tlhahiso ena, tlhahlobo ea lingoliloeng e bonts'a hore ho kenyeletsa ho OFC ho khetholla liketsahalo tse ngata, esita le tse tlositsoeng ho phano ea meputso, haeba ba fana ka leseli mabapi le menyetla ea moputso oa nako e tlang (Setšoantšo sa I sa lebokose lena). Mohlala, thupelong ea khethollo ea monko, li-neuron tsa mollo li lebelletse hore nko e tlohe pele ho sampola ea monko. Karabelo ea li-neuron tsena e fapana ho latela hore na tatellano ea liteko tsa morao tjena [87,90] kapa sebaka [91] e bolela esale pele menyetla e mengata ea moputso.

Setšoantšo sa I

Faele e kantle e nang le setšoantšo, papiso, joalo-joalo Lebitso la ntho ke nihms52727f5.jpg

Ts'ebetso ea Neural ho OFC ka ho lebella liketsahalo tsa teko. Li-Neurons ka har'a rat ea OFC li tlalehiloe nakong ea ts'ebetso ea monko oa borobeli, e leng oa Go-NoGo. Ketsahalo ea li-neuron tse fapaneng tsa orbitofrontal e bonts'oa, e hokahantsoe le liketsahalo tse 'ne tse fapaneng (a-d). Ts'ebetso e bonts'oa ka sebopeho se holimo holimo le joalo ka histeri ea nako ea ketsahalo e tlase botlaleng ka leng; Mabitso a fetang palo e ngoe le e ngoe a bonts'a ketsahalo e kopanyang le liketsahalo life kapa life tse etsahetseng pele kapa kamora ho qaleha ha leseli (LT-ON), lephoka (OD-POK), qalo ea monko (OD-ON), poke ea metsi (WAT-POK) kapa phano ea metsi. (WAT-DEL). Lipalo li supa palo ea liteko (n) le palo ea li-spikes motsotsoana. Li-neuron tse 'ne ka mong li ile tsa thunya hammoho le ketsahalo e fapaneng,' me ho thunya mothong ka mong ho ile ha eketsa tebello ea ketsahalo eo. E fetotsoe, ka tumello, ho tsoa ho [87].

Setšoantšo sa 1 

Pontšo ea litebello tsa sephetho ho orbitofrontal cortex. Lithapo tse ntšo li bontša karabelo litekong tse kenyelletsang sephetho se ratoang sa li-neuron sethaleng sa kamora ho ts'oara. Litala tse tšoeu li bonts'a karabo ho latela sephetho se sa rateheng. Ts'ebetso e hokahane ...

Kamora ho ithuta, methapo ena ea kutlo e qala ho kengoa tšebetsong tse boletsoeng esale pele ka sephetho sa eona, ka ho etsa qeto ea sephetho se lebelletsoeng le pele ho karabelo e etsoa. Sena se bonahala karabong ea baahi e hlahisitsoeng Setšoantšo sa 1, e bonts'ang ts'ebetso e phahameng, kamora ho ithuta, ho arabela monko o bohloko o bolelang esale pele sephetho se ratoang ke baahi ba neuronal. Lipontšo tsena li ka lumella phoofolo ho sebelisa litebello tsa liphetho tse ka hlahang ho tataisa likarabo ho li-cu le ho nolofalletsa ho ithuta ha litheko li tlosoa.

Khopolo ea hore OFC e tataisa boits'oaro ka ho supa tebello ea sephetho e lumellana le litlamorao tsa tšenyo ea OFC ka boits'oaro. Litlamorao tsena li bonahala hangata ha karabelo e nepahetseng e sa khethoe ho sebelisoa mekhatlo e bonolo, empa ho e-na le hoo e hloka hore litebello tsa sephetho li ka kopanngoa ha nako e ntse e feta kapa ho bapisoa pakeng tsa likarabo tse ling. Mohlala, batho ba nang le ts'enyehelo ea OFC ha ba khone ho tataisa boitšoaro ka mokhoa o nepahetseng ho latela litlamorao tsa liketso tsa bona mosebetsing oa ho becha oa Iowa [14]. Mosebetsing ona, lithuto li lokela ho khetha mekatong ea likarete tse nang le meputso le likotlo tse fapaneng tse emeloang ka likarete. Ho etsa liqeto tse molemo, lithuto li lokela ho khona ho hokahanya boleng ba meputso le likotlo tse fapaneng ho feta nako. Batho ba nang le ts'enyehelo ea OFC qalong ba khetha li-desk tse fanang ka meputso e phahameng, ho bonts'a hore ba ka sebelisa mekhatlo e bonolo ho tsamaisa boitšoaro ho latela boholo ba moputso; leha ho le joalo, ba sitoa ho fetola likarabo tsa bona ho hlahisa likotlo tse kholo ka linako tse ling literekeng tseo. Ho kopanya tlhaiso-leseling mabapi le likotlo tse fanoang khafetsa, ho ka tsamaisoa ka bokhoni ba ho boloka leseli mabapi le boleng ba sephetho se lebelletsoeng mohopolong oa moemeli kamora ho etsa khetho, e le hore tlolo ea ts'ebetso ena (likotlo tse fanoang nako le nako) e ka ananeloa. Qhekello ena e ananele liphoso tse khutliselitsoeng tse bontšitsoeng ho likhoto, litšoene le batho kamora ho senyeha ha OFC [15-21].

Bokhoni bona ba ho ts'oara lintlha mabapi le sephetho se lebelletsoeng mohopolong oa boemeli bo boetse bo hlahlobiloe phuputsong ea morao-rao moo lithuto li ileng tsa etsa liqeto lipakeng tsa maikutlo a mabeli a boletseng kotlo kapa moputso maemong a fapaneng a monyetla [22]. Karolong e 'ngoe ea thuto ena, lithuto li ile tsa fuoa maikutlo mabapi le boleng ba sephetho seo ba neng ba sa se khetha. Lithuto tse tloaelehileng li ile tsa khona ho sebelisa maikutlo ana ho fetola maikutlo a bona ka khetho ea bona le ho ithuta ho etsa liqeto tse nepahetseng litekong tse tlang. Mohlala, moputso o monyane o ile oa ba thabisa ha ba ne ba tseba hore ba qoba kotlo e kholo. Batho ba nang le tšenyo ea OFC ba bonts'itse karabelo e tloaelehileng ea maikutlo ho meputso le likotlo tseo ba li khethileng; leha ho le joalo, maikutlo mabapi le sephetho se sa khethoang a ne a sena matla a maikutlo a bona kapa ts'ebetsong ea bona e latelang. Ka mantsoe a mang, ba ne ba thabile ha ba fumana moputso, empa ba ne ba sa thaba le ho feta ha ba ne ba ka tsebisoa hore ba boetse ba qoba kotlo e kholo. Tšenyo ena e tsamaisana le karolo ea OFC ho boloka leseli le kopanyang mohopolong oa boemeli ho bapisa litebello tse fapaneng tsa sephetho. Ntle le lets'oao lena, batho ka bomong ba ke ke ba bapisa boleng bo lekanang ba liphetho tse khethiloeng le tse sa bonoang 'me kahoo ba hloleha ho sebelisa tlhaiso-leseling ena ho feto-fetoha le maikutlo le ho nolofalletsa ho ithuta.

Leha mehlala ena e senola, ponahatso e bonts'ang ka kotloloho karolo ea bohlokoa ea OFC ho hlahiseng litebello tsa sephetho sa ho tataisa ho etsa liqeto ho tsoa mesebetsing ea matlafatso ea boleng. Mesebetsi ena e lekola taolo ea boitšoaro ka boemeli bo kahare ba boleng ba sephetho se lebelletsoeng. Mohlala, ho mofuta oa Pavlovian oa ts'ebetso ena (Setšoantšo sa 2), likhoto li qala ho koetlisetsoa ho amahanya cue e bobebe le lijo. Kamora hore boemo bo arabeloe bo behiloe leseling, boleng ba lijo bo fokotseha ka ho bo tsamaisa ka bokuli. Kamora moo, tlhahlobong ea probe, leseli le bobebe le hlahisoa hape sebokeng sa ho timela se sa lefelloeng. Liphoofolo tse fumaneng likokoana-hloko tsa bokuli ba lijo li arabela hanyane khanyeng e bobebe ho feta mefuta e sa laoloang. Habohlokoa, ho fokotseha hona ha karabelo ho bonahala ho tloha qalong ea seboka 'me ho fokotseha ka ho fokotseha ho tloaelehileng ha ho araba ho hlahisoang ke ho ithuta ho feteletseng nakong ea thuto. Phokotso ena ea pele ea ho arabela e tlameha ho bonts'a tšebeliso ea setšoantšo sa kahare sa boleng ba hona joale ba lijo hammoho le mokhatlo oa pele oa lijo tse bobebe. Kahoo, mesebetsi ea tlhatlhobo ea matlafatso e fana ka tekanyo e tobileng ea bokhoni ba ho qhekella le ho sebelisa litebello tsa sephetho ho tataisa boitšoaro.

Setšoantšo sa 2 

Litlamorao tsa liso tsa methapo ea methapo ea orbitofrontal cortex (OFC) ts'ebetsong mosebetsing oa moriana oa matlafatso. (A) Likhoto tse laolang le likhoto tse nang le marapo a methapo a methapo ea methapo ea OFC li ile tsa koetlisetsoa ho hokahanya mofuta o susumetsang (CS, light) le lesapo ...

Likhoto tse nang le mabala a OFC li hloleha ho bonts'a phello leha e le efe ea ho fokotsa boleng ha motho a araba ka karogano ena, ho sa tsotelloe boemo bo tloaelehileng le pherekano ea sephetho [23]. Ka mantsoe a mang, ba ntse ba tsoela pele ho arabela moeleng o bobebe le ho leka ho fumana lijo, leha ba ke ke ba li ja ha li hlahisoa (Setšoantšo sa 2). Habohlokoa, litoeba tse tsamaeang le li-OFC li bonts'a bokhoni bo tloaelehileng ba ho tima likarabo tsa bona nakong ea liteko, ho bonts'a ho haella ha bona ho bonts'a ho sitoa ho thibela likarabo tse nang le maemo [24]. Ho fapana le hoo, OFC e na le karolo e ikhethileng ea ho laola likarabo tse nang le maemo ho latela lipontšo tsa kahare tsa boleng bo bocha ba sephetho se lebelletsoeng. Ka hona, likotsi tsa OFC tse entsoeng kamora ho ithuta li tsoela pele ho ama boitšoaro mosebetsing ona [25]. Ho bile le liphetho tse tšoanang ho litšoene tse koetliselitsoeng ho etsa mofuta oa mosebetsi ona [19].

Likhoto tse nang le mabala a OFC li boetse li bonts'a liphetoho tsa methapo ea kutlo libakeng tse tlase tse tsamaellanang le tahlehelo ea litebello tsa sephetho. Phuputsong e le 'ngoe [26], likarabo li tlalehiloe ho tsoa li-unit tse le 'ngoe ho basolateral amygdala, sebaka se fumanang litekanyetso ho tsoa ho OFC, ho ithuteng litheko le ho khutlisetsa khethollo ea noor ea monko mosebetsing o hlalositsoeng pejana. Tlas'a maemo ana, lesapo la OFC le ile la sitisa motho ea neng a lebelletse ho thunya ka sepheo sa tloaelo ho bonoa ho basyatal amygdala. Ntle le moo, ntle le ho kenya letsoho ha OFC, li-neuron tsa "basy" tsa basolateral amygdala li ile tsa khethoa butle butle, haholoholo kamora hore mekhatlo ea sephetho sa cue e khutlisoe. Ho kenya ts'ebetso hanyane ka hanyane ho tsa basolateral amygdala ka lebaka la maqeba a OFC, haholo-holo nakong ea phetoho, ho lumellana le mohopolo oa hore litebello tsa sephetho li thusa ho ithuta meahong e meng, haholoholo ha litebello li tlotsoa joalo ka ha li fetoha. Kahoo, ho bonahala OFC e hlahisa le ho emela litebello tsa sephetho tse bohlokoa eseng feela ho tataiso ea boits'oaro ho latela litebello mabapi le bokamoso, empa hape le bokhoni ba ho ithuta ho tsoa tlolong ea litebello tseo. Kantle ho lets'oao lena, liphoofolo li etsa boits'oaro bo bobe, bo khannoang ke mekhoa e tloahelehileng ea ho etsa lintho tse khahlisang batho, ho fapana le ho bontša ka sepheo kapa sepheo.

Boitšoaro bo makatsang le litebello tsa sephetho

Liphumano tsa morao-rao li bonts'a hore conceptualization ena ea ts'ebetso ea OFC e fana ka kutlwisiso ea bokhoba ba lithethefatsi. Ho latela Buka ea ho hlahloba le ea Statistical ea Mathata a kelello [27], tlhahlobo ea ts'ebeliso ea ts'ebeliso ea litheko e hloka hore motho a bonts'e bokhoni ba ho laola boitšoaro ba hae ba ho batla lithethefatsi, leha a na le litlamorao tse mpe. Boitšoaro bo joalo ba bokhoba bo tsebahala ka mokhoa o fapaneng e le o qobelloang, o qobelloang, oa ho mamella kapa o taolong ea lithahasello tse amanang le lithethefatsi. Ho feta moo, hangata e bonoa ho sa tsotelehe takatso e boletsoeng ka lehlakoreng la lithethefatsi ho khaotsa. Kahoo, tlhahlobo ea ts'ebeliso ea ts'ebeliso ea thepa e hloka mokhoa oa boitšoaro o ts'oanang le oa likhoto tsa OFC, litšoene le batho.

Ka hona, bokhoba ba lithethefatsi bo amahanngoa le liphetoho molemong oa tšebetso le tšebetso ea OFC. Mohlala, lithuto tse inahaneloang tsa bokhoba ba lithethefatsi li bontšitse khafetsa litlolo tse tsamaeang le mali ho phallo ea mali ho OFC [28-33] (bakeng sa tlhahlobo e ntle haholo, bona [34]). Bokhoba ba tahi le cocaine bo bontša ho fokotsa methati ea ts'ebetso ea ts'ebetso ea OFC nakong ea ha motho a khaotsa haholo. Ka lehlakoreng le leng, nakong ea ho pepesehela litloaelo tse amanang le lithethefatsi, bokhoba ba lithethefatsi bo bonts'a ho ata ha OFC e lumellanang le tekanyo ea litakatso tseo ba nang le tsona. Liphetoho tsena li amahanngoa le ho senyeha hoa boits'oaro bo itšetlehileng ka OFC ho lithethefatsi tsa lithethefatsi [35-39]. Mohlala, batho ba hlekefetsang joala le koae ba bonts'a mokhoa o ts'oanang, leha e le o fokolang haholo ka kakaretso, litšitiso mosebetsing oa papali ea chelete o hlalositsoeng pejana, joalo ka batho ba nang le marapo a OFC. Ka mokhoa o ts'oanang, liteko tse ling tsa laboratori tsa ho etsa liqeto li senotse hore ba hlekefetsang amphetamine ba nka nako e telele mme ha ba na monyetla oa ho khetha khetho e ruisang haholo ho feta taolo. Empa na mefokolo ee e bonts'a ho ba kotsing ea ho lemalla batho ba bang? Kapa li bakoa ke li-neuroadaptations tsa lithethefatsi tsa nako e telele? Haeba ho joalo, na li bontša liphetoho sebopeho le / kapa tšebetso ka har'a OFC, kapa ke litholoana tsa liphetoho sebakeng se seng sa marang-rang se corticolimbic se etsisang litlamorao tsa mabala a OFC?

Ho araba lipotso tsena, ho a hlokahala hore u fetohele mehlaleng ea liphoofolo, moo lithethefatsi tse lemalloang li ka tlisoang ka mokhoa o laoloang khahlano le semelo se tsitsitseng sa tlhaho le tikoloho. Palo e ntseng e eketseha ea lithuto tse joalo hona joale e bontša hore ho pepesetsoa nako e telele ho lithethefatsi tse lemalloang - mme haholo-holo li-psychostimulants - ho fella ka liphetoho tsa nakoana tsa bongo le boits'oaro [40-50]. Haholo-holo litlamorao tsena li bonoa ka mor'a likhoeli tse ngata kamora ho khaotsa le litloaelong tsa boits'oaro tse sa amaneng le ho pepesetsoa lithethefatsi, ho latela maikutlo a hore lithethefatsi tse lemalloang li fetola li-circuits tsa boko tse bohlokoa bakeng sa taolo e tloaelehileng ea boits'oaro. Haufinyane, liphuputso tse 'maloa li bonts'itse litlamorao ho OFC. Mohlala, likhoto tse koetliselitsoeng ho iphelisa amphetamine bakeng sa libeke tse 'maloa li tlalehiloe ho bonts'a phokotso ea letsoalo la mokokotlo oa dendritic ho OFC khoeli e le' ngoe hamorao [46]. Ntle le moo, likhoto tsena tse nang le boiphihlelo ba lithethefatsi li bonts'itse tokiso e tlase ea li-dendrites tsa bona ka lebaka la thupelo e matla ea thuto. Liphumano tsena li bohlokoa haholo ka lebaka la letsoalo le matla la lesapo la mokokotlo le kileng la tlaleheloa ho "cortex" ea methapo pele ho nako, le li-nucleus accumbens le kae kapa kae kamora kalafo ka li-psychostimulants [41]. Kahoo, hara libaka tsena tsa corticolimbic, OFC e bonahala e ikhethile ho bonts'a bopaki ba fokotseho ea polasetiki ea synaptic kamora ho pepesetsoa lithethefatsi.

Ho fokotseha ha polasetiki ho OFC ho ka lebelloa ho ama mesebetsi ea ho its'etleha ka OFC. E lumellana le khokahano ena, likhoto tse fuoang thupelo ea libeke tse peli le kankere e bontša ho senyeha ho sa feleng hoa boits'oaro bo itšetlehileng ka OFC. Ka ho khetheha, liphoofolo tsena ha li khone ho sebelisa boleng ba sephetho se boletsoeng esale pele ho tataisa boitšoaro ba bona. Teko e le 'ngoe [51], likhoto li ne li fuoa li-cocaine tsa letsatsi le letsatsi bakeng sa libeke tse peli. Ho feta khoeli e le 'ngoe, likhoto tsena li ile tsa lekoa mosebetsing oa khethollo ea Go-NoGo. Mosebetsing ona, likhoto li ithuta ho ea koung ea mokelikeli ho fumana selcrose ka mor'a ho nkha monko o le mong le ho hana ho ea koung e le ngoe ea metsi ho qoba quinine ka mor'a ho nkha monko oa bobeli. Likhoto tse tšoaroang ka koae li ithutile khethollo ka tekanyo e tšoanang le ea li-control tse tšoaroang ka letsoai, empa li sa khone ho fumana likhethollo ka potlako joalo ka ha li bile le taolo. Liphoso tse tšoanang tsa ho feto-fetoha le maemo li bontšitsoe hape lithutong tse fuoang monyetla o sa feleng oa koae [cocaine]43]. Liphoso tse joalo tse fetohileng ke tšobotsi ea liphoofolo le batho ba OFC ba tlohileng ba le teng [15-21], moo ho nahanoang hore li bonts'a ho se khone ho fetola boits'oaro bo ikemiselitseng kapele. Re fana ka maikutlo a hore karolo ea OFC ho ts'ehetsa maemo ana a fetohang kapele e amana le bohlokoa ba eona ba ho saena se lebelloang ka sephetho [26]. Nakong ea thuto e feto-fetohang, papiso ea pontšo ena le sephetho sa morao, se khutlisitsoeng li tla hlahisa lipontšo tsa liphoso tsa bohlokoa ho thuto e ncha [1]. Ntle le letšoao lena, likhoto tsa OFC tse leseli li ne li tla ithuta butle butle. Joalo ka ha re se re buile, "neuronalsiological correlate" ea thuto ena e nyane e sa tsoa bontšoa ho kopaneng ho sa kopaneng ha li-neuron tsa basolateral amygdala neurons tsa OFC tse leseli [26].

Ho lahleheloa ke letšoao lena ho bonahala hape tekong ea bobeli eo ho eona likhoto li ileng tsa phekoloa ka koae ka libeke tse peli ebe li lekoa mosebetsing oa ho matlafatsa boleng ba Pavlovian o hlalositsoeng pejana [24]. Hape, liteko li ile tsa etsoa hoo e ka bang khoeli e le 'ngoe ka mor'a kalafo ea koae ea ho qetela. Ts'ireletso tsena li bonts'itse boemo bo tloaelehileng le tlhatlhobo, hape li tima ho araba ka mokhoa o tloaelehileng karolong ea ho qetela ea teko; leha ho le joalo, litoeba tse khaotsoeng ke koae ha li a ka tsa supa phokotso e tloaelehileng ea ho itšupa ha karabelo ho seo se reriloeng. Qhekello ena (Setšoantšo sa 3) e ts'oana le ho haella ha kamora marang-rang a OFC mosebetsing ona (Setšoantšo sa 2). Liphumano tsena li tsamaellana le ho sitoa ho supa boleng ba sephetho se lebelletsoeng. Ho joalo, hobane mosebetsing ona ha ho na qoso mabapi le boemeli bo hlokoang ho tsamaisa ts'ebetso e tloaelehileng, bofokoli bo hlalositsoeng mona bo supa ka mokhoa o sa tobang mabapi le tahlehelo ea litebello tsa litlamorao ho likhoto tse phekotsoeng ke koae.

Setšoantšo sa 3 

Liphello tsa kalafo ea koae ka ts'ebetso ea mosebetsi oa ho matlafatsa matlafatso (Setšoantšo sa 2). Lirata tse tšoaroang ka letsoai le cocaine li ile tsa koetlisetsoa ho hokahanya ntho e ntšoang ka mokhoa o hlasimolohileng (CS, leseli) le sefutho se sa tlosoang (US, lijo). (A) Likarolo tse fetang tse 'ne ...

Ho lahleheloa ke mokhoa ona o bonts'ang mabaka ho tla baka matla a bokhoba ba lithethefatsi hore a tsoelepele ho batla lithethefatsi, leha ho ka ba le litlamorao tse mpe tse ke keng tsa qojoa tsa boitšoaro bo joalo, hobane li ka ba fa monyetla oa ho kenyelletsa tlhahisoleseling ena mabapi le ho etsa liqeto mme mohlomong ba sitoa ho ithuta ho esita le boiphihlelo bo pheta-phetoang ba litlamorao tsena tse mpe. Leha lits'ebetso tse ling tsa boko le tsona li ka ameha, liphetoho tse susumetsoang ke lithethefatsi ho letšoao lena le itšetlehileng ka OFC ka bo tsona li tla kenya letsoho ka matla phetohong ho tloha boitsong bo tloaelehileng bo lebisitsoeng ho sepheo ho ea ho karabelo e phehellang. Phetoho ena e ka bonts'a phetoho molekaneng lipakeng tsa mekhoa ena ea tlholisano ea boitšoaro. Tlhaloso e joalo e tla tšoarella bakeng sa boitšoaro ba ho ts'oara lithethefatsi tsa lithethefatsi, le bakeng sa liphumano tsa morao-rao mefuteng e 'maloa ea phoofolo ea ho lemalla eo likhoto li sa khoneng ho thibela boitšoaro ba ho batla lithethefatsi, leha litholoana tse mpe li sa lumellane le boitšoaro boo [45,47].

Lipolelo tse qetellang

Re sekasekile liphumano tsa moraorao ho ts'ehetsa tlhahiso ea hore OFC e bohlokoa bakeng sa ho supa boleng ba sephetho kapa litholoana tse lebelletsoeng. Re boetse re tšohlile hore na mohopolo ona e ka ba oa bohlokoa joang ho utloisiseng thuto ea methapo e sebelisang lithethefatsi. Ehlile likhopolo tsena li hlahisa lipotso tse ling tse ngata. Haeba OFC e hlahisa lipontšo mabapi le liphetho tse lebelletsoeng, ho bohlokoa haholo ho utloisisa hore na libaka tse tlase li sebelisa lipontšo tsena joang - liphoofolong tse tloaelehileng, ho kenyelletsa tse pepesetsoeng lithethefatsi tse lemalloang. Re khothalelitse hore na li-amygdala tsa basolateral li ka ameha joang [26]; leha ho le joalo, ho utloisisa karolo eo lipontšo tsena li nang le eona ho li-bokellase tsa nucleus - le hore na li sebelisana joang le tse ling tsa 'limbic' - li ka ba bohlokoa haholo bakeng sa ho lemalla. Litsi tse 'maloa tsa mosebetsi li sebetsa ka thata ho rarolla mathata ana a bohlokoa. Ntle le moo, ho tla ba bohlokoa ho bonts'a hore na liphetoho lits'ebetsong tse itšetlehileng ka OFC kamora ho pepeseha lithethefatsi li hlile li bonts'a mosebetsi o fetotsoeng oa limolek'hule kapa neurophysiological ho OFC, joalo ka ha ho khothalelitsoe ke data ea ho rekota ea pele-pele [52], kapa ka mokhoa o mong hore na li ka bonahatsa liphetoho kae kapa kae potolohong, joalo ka li-nucleus accumbens, sebaka se nang le tšibollo ea nako e telele. Ho joalo, mofuta oa phoofolo ea lefu lena e bohlokoa ha feela e fana ka pheko bakeng sa liphetoho tsa phetiso ea methapo. Sena se thata maemong a marang-rang empa ho ka khoneha bakeng sa bofokoli bo bakoang ke ho pepesetsoa lithethefatsi. Leha ho le joalo, ho sa ntse ho tla bonahala hore na ho ka etsoa mekhoa e fapa-fapaneng ho tloaela boitšoaro mme mohlomong litokiso tsa limolek'hule kapa li-neurophysiological tse khethiloeng liphoofolong tse sebelisitsoeng ke lithethefatsi. Re lebelletse hore litaba tsena le tse ling tse ngata li tla rarolloa lilemong tse tlang (lebokose 3).

Lebokose 3. Lipotso tse sa arajoang

  1. Libaka tse oelang tlase nokeng - haholo-holo li-nucleus bokella - sebelisa lipontšo mabapi le litebello tsa sephetho tse tsoang ho OFC? Tlhahiso-leseling ee e kopantsoe joang le litlatsetso tse ling tsa 'limbic' ho li-accumbens?
  2. Na liphetoho li ka fetoha ka boits'oaro bo itšetlehileng ka OFC kamora ho pepesetsoa lithethefatsi li ka hokahanngoa le liphetoho liphellong tsa limolek'hule kapa tsa neurophysiological kahare ho OFC? Kapa na mefokolo ee ea boits'oaro e bonts'a phetoho kae kae litsing tsa ho ithuta?
  3. Na liphetoho tse amanang le lithethefatsi mokhoeng oa boits'oaro kapa matšoao a mang li ka khutlisoa ka boits'oaro bo bobebe bo amanang le boitshwaro kapa ba meriana?
  4. Na liphetoho tse sebetsang ho OFC kapa li-circuits tse amanang le ho ithuta li fapane ho liphoofolo tse fanoang ke khang le liphihlelo tsa lithethefatsi tse seng tse ka bang teng? Mme haeba ho le joalo, na liphapang li na le tšusumetso e mpe boits'oarong?
  5. Na liphetoho li teng ka har'a boitšoaro ba OFC maemong a lemaletseng lithethefatsi tsa ts'ebeliso e mpe ea lithethefatsi le ho khutlela morao? Mme mohlomong e ka ba tsa bohlokoa ka ho khetheha phetohelong ea bokhoba ba tahi, ho khothaletsa tšebeliso ea lithethefatsi tse tsoelang pele pele liphetoho tse etsahalang, tse amanang le phihlello ea nako e telele, li ba le tšusumetso?

lumela hore baa fokola

Patlisiso ea rona e tšehelitsoe ke lithuso ho tloha NIDA (R01-DA015718 ho GS), NINDS (T32-NS07375 ho MRR) le NIDCD (T32-DC00054 ho TAS).

References

1. Dickinson A. Khopolo ea ho lebella maemo a phoofolo. Ka: Klein SB, Mowrer RR, bahlophisi. Likhopolo tsa ho Ithuta tsa Nako e Teng: Boemo ba Pavlovian le Boemo ba Khopolo ea ho Ithuta ea Moetlo. Erlbaum; 1989. maq. 279-308.
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