Karolo ea orbitofrontal cortex ka ho lemalla lithethefatsi: ho hlahloba lithuto tsa mekhoa e metle (2008)

Biol Psychiatry. 2008 February 1; 63(3): 256-262. E phatlalalitsoe inthaneteng 2007 August 23. doi:  10.1016 / j.biopsych.2007.06.003

PMCID: PMC2246020
NIHMSID: NIHMS38474

inahaneloang

Boithuto bo sebelisang mekhoa ea ho nahana ka bokong bo bonts'itse hore ts'ebetso ea neuronal ho orbitofrontal cortex, sebaka sa kelello se nahanang ho khothaletsa bokhoni ba ho laola boitšoaro ho latela sephetho kapa litlamorao tse ka hlahang, e fetotsoe ho lithethefatsi tsa lithethefatsi. Liphumano tsena tsa ho nahana ka batho li lebisitse tlhokomelong ea hore litšobotsi tsa mantlha tsa bokhoba ba ts'ebeliso e joalo ea tšebeliso e mpe ea lithethefatsi le ho khutlisetsoa hoa lithethefatsi li kopantsoe le karolo ke liphetoho tse tlisoang ke lithethefatsi mosebetsing oa orbitof Pambal. Mona, re buisana ka liphetho tsa lithuto tsa laboratori tse sebelisang likhoto le litšoene ka phello ea ho pepesetsoa lithethefatsi mesebetsing ea ho ithuta ea orbitofrontal le ka sebopeho sa neuronal le tšebetso ho orbitof Pambal cortex. Re boetse re bua ka liphetho tsa lithuto tse mabapi le karolo ea orbitof Pambal cortex ho itaoleng le lithethefatsing. Qeto ea rona ea mantlha ke hore ha ho ntse ho na le bopaki bo hlakileng ba hore ho pepesetsoa lithethefatsi ho sitisa mesebetsi ea ho ithuta e amanang le lithethefatsi le ho fetolela mesebetsi ea methapo ho orbitofrontal cortex, karolo e tobileng ea liphetoho tsena e bapala ts'ebelisong e mpe ea lithethefatsi le ho khutlela morao ha e so thehiloe.

Selelekela

Bokhoba ba lithethefatsi bo tsebahala ka ho qobella ho ts'oara lithethefatsi le khafetsa e phahameng ea ho khutlela morao tšebeliso ea lithethefatsi 1-3. Bakeng sa mashome a lilemo, lipatlisiso tsa mantlha mabapi le ts'ebeliso ea lithethefatsi li 'nile tsa neheloa haholo ho utloisisa mekhoa e tlisoang ke litlamorao tse matla tsa lithethefatsi 4. Patlisiso ena e bonts'a hore sisteme ea mesolimbic dopamine le khokahano ea eona e sebetsang le e amanang le eona ke karolo e ka tlaasana ea melemo ea litlamorao tsa lithethefatsi tsa tlhekefetso 4-7. Lilemong tsa morao tjena, ho ile ha hlaka hore litlamorao tse matla tsa lithethefatsi li ke ke tsa baka likarolo tse ngata tse kholo tsa ho lemalla, ho kenyelletsa ho khutlisetsoa ts'ebeliso ea lithethefatsi kamora ho tlohela nako e telele ea tahi ea 8-10 le phetoho ea tšebeliso ea lithethefatsi e laoloang ho tšebeliso e mpe le e qobelloang ea lithethefatsi. 11-14.

Ho ipapisitsoe le lintlha tse 'maloa tsa bopaki, ho nahanoa hore tšebeliso e qobelloang ea ho batla lithethefatsi le ho khutlisetsoa ha lithethefatsi e kenelletsoa ka karolo ke liphetoho tse tlisoang ke lithethefatsi ho orbitofrontal cortex (OFC) 14-18. Ts'ebetso ea Hypermetabolic ho OFC e kentse letsoho ho etiology ea likhatello tse potelletseng (OCD) 19-22, mme ho na le bopaki ba hore ketsahalo ea OCD ho basebelisi ba lithethefatsi e phahame ho feta tekanyo ho palo e akaretsang ea 23-25. Lithuto tsa ho ts'oants'a cocaine 26; 27, methamphetamine 28; Basebelisi ba 29 le heroin 15 ba senola metabolism e fetohileng ho OFC le ts'ebetso e eketsehileng ea neuronal ha ho arabeloa ka lintlha tse amanang le lithethefatsi 15; 30. Leha ho le thata ho tseba hore na liphetoho tsa metabolic li bonts'a tšebetso e ntlafalitsoeng kapa e sa sitiseng tšebetso ea neural, ho fetoloa ha manonyeletso ho bakuli ba OCD le ba lemaletseng lithethefatsi ho ka etsahala hore ho bonahale ho kopantsoe ho sa tloaelehang ha tlhahiso ho tsoa libakeng tse amanang. Tumellanong le khopolo ena, bokhoba ba lithethefatsi, joalo ka bakuli ba nang le OFC senya 31, ba sitoa ho araba ka mokhoa o nepahetseng maemong a fapaneng a mosebetsi oa 'papali ea chelete' 32-34. Ts'ebetso ena e mpe e tsamaisana le ts'ebetso e sa tloaelehang ea OFC 35. Liphetho tse tsoang lipatlisisong tsena tsa bongaka li bontša hore ts'ebetso ea OFC ha e na ts'ebeliso ea lithethefatsi, empa ho bohlokoa lintlha tsena li ke ke tsa khetholla hore na liphetoho tsa ts'ebetso ea OFC li hlahisoa ke ho pepeseha hoa lithethefatsi kapa li emela boemo bo neng bo le teng pele bo behang batho ba bang tlatsong ea lithethefatsi. Taba ena e ka sebetsoa lithutong tse sebelisoang mehlaleng ea liphoofolo.

Thutong ena, re qala ka ho tšohla tšebetso e potlakileng ea OFC ho tataiseng boitšoaro. Ka mor'a moo re buisana ka bopaki bo tsoang lithutong tsa laboratori ka phello ea ho pepesetsoa lithethefatsi ho boits'oaro bo kopanetsoeng ba OFC le sebopeho sa neuronal le tšebetso ho OFC. Joale re buisana ka lingoliloeng tse fokolang tse mabapi le karolo ea OFC taolong ea lithethefatsi le ho khutlisetsa lithethefatsi mefuteng ea liphoofolo. Re phethela ka hore ha ho ntse ho na le bopaki bo hlakileng ba hore ho pepesetsoa hoa lithethefatsi ho baka liphetoho tsa nako e telele sebopeho sa tšebetso ea tšebetso ea methapo le tšebetso ho OFC le ho senya boits'oaro bo it'setlehileng ba tšebetso, karolo e tobileng ea liphetoho tsena e bapala ts'ebetsong e qobelloang ea lithethefatsi le ho khutlela morao ha e so thehehe. Lethathamo la 1 le fana ka lethathamo la mantsoe a sebelisitsoeng tlhahlobisong ea rona (litlhaku tse ngotsoeng ka mongoloeng).

Karolo ea OFC ho tataiseng boitsoaro

Ka mokhoa o pharaletseng, boits'oaro bo ka tsamaisoa ke takatso ea ho fumana sephetho se itseng, se kenyelletsang kemiso e sebetsang ea boleng ba sephetho, kapa ka litloaelo tse laolang karabelo e itseng maemong a itseng ho sa tsotelehe boleng kapa ho lakatsa (kapa ho sa rateheng) ea sephetho. Bopaki ba Ample joale bo bonts'a hore potoloho e kenyelletsang OFC e bohlokoa haholo ho nts'etsapele boitšoaro bo thehiloeng boemelong bo mafolofolo ba boleng ba sephetho se lebelletsoeng 36. Ts'ebetso ena e bonahala ho bokhoni ba liphoofolo ba ho fetola likarabo kapele ha sephetho se boletsoeng esale pele se fetoha 37-39. Litšong le litšoene, hangata bokhoni bona bo hlahlojoa mesebetsing eo ho ithutoang moputso ho eona e sa le moputso (kapa kotlo) ebe tebello ea pele ea moputso (kapa kotlo) e ba ponelo-pele ea moputso. Lithuto tse etsisang li kenya ts'ebetso ea OFC lithutong tse fetohileng ho batho 40-42, 'me likhoto le li-primates tse nang le tšenyo ea OFC li haelloa ke ho ithuta tse khutlisetsang leha ho ithuta lisebelisoa tsa pele ho sa sebetseng 38; 43-51. Khaello ena e bontšoa ho litoeba ho Setšoantšo sa 1A. LINTHO tsa OFC li ka senya ts'ebetso e ts'oanang mesebetsing ea 'papali ea chelete ea ho becha' moo lithuto tse tsitsitseng li ithutang ho fetola ho araba ha tsona bakeng sa cue eo qalong e bolelang boleng bo phahameng, empa hamorao e tla tla ho bolela kotsi e kholo ea tahlehelo ea 31. Leha hona joale e le taba e hanyetsanang ho "cositive neuroscience", ho na le bopaki ba hore karolo ea OFC mosebetsing oa papali ea chelete e pakoa haholo ke tlhoko ea thuto e feto-fetohang e amanang le moralo oa mesebetsi e mengata ea papali ea chelete ea 51.
Setšoantšo sa 1
Setšoantšo sa 1
Phatlalatso ea cocoaine e etsa hore ho be le bofokoli ba thuto ea morao-rao bo itšetlehileng kaCC e boholo bo ts'oanang le bofokoli ba ho ithuta bo hlahisitsoeng ke lesapo la OFC

Ho kenya letsoho ha OFC ho emela boleng ba sephetho se boletsoeng esale pele ho ka aroloa mesebetsing ea matlafatso ea boleng, eo boleng ba sephetho bo thehiloeng ka kotlolloho ka ho tsamaisa ka bokuli kapa ho khetha satiation 52. Maemong ana, liphoofolo tse tloaelehileng li tla arabela hanyane bakeng sa likotsi tse boletsoeng esale pele ka mor'a ho bala sephetho se boletsoeng esale pele. Likhoto le litloholo tse seng tsa batho tse nang le tšenyo ea OFC li sitoa ho bonts'a sephetho sa sephetho sa boleng ba 37; 38; 53. Lithuto tsena li senola bofokoli bo itseng ho bokhoni ba liphoofolo tse khethiloeng ke OFC ho sebelisa sesupo sa boleng ba sephetho sa hona joale ho tataisa boits'oaro ba bona, haholoholo ha ho shebane le mekhoa e hloahloa. Ka lebaka leo, boitšoaro bo ts'oaroang ke lits'ebeletso bo fetoha tlase ho boleng ba sephetho se lebelletsoeng, 'me, ka mokhoa o iketsang, joalo ka tloaelo. Leha lithuto tsena li entsoe liphoofolong tsa liphoofolo, liphuputso tse entsoeng ka monahano li bonts'itse hore likarabo tse hlahisitsoeng ka mokhoa oa BOLD ho OFC li amehile haholo ka boleng ba lijo tseo li li boletseng pele.t 54. Ka tlase, re tšohla bopaki ba hore ho pepesetsoa lithethefatsi khafetsa ho etsa hore ho be le liphetoho lipuisanong tsa li-neuronal le limolek'hule tsa tšebetso ho OFC; Liphetoho tsena li ka ba tsa sitisa ho senyeha hoa boits'oaro bo botle ba OFC lipakeng tsa liphoofolo tse nang le boiphihlelo ba lithethefatsi. Liphetoho tse joalo li kanna tsa lebisa mekhoeng e joalo ea karabelo e bonahatsoang ke boits'oaro ba bokhoba le liphoofolo tse nang le tsebo ea lithethefatsi.

Kameho ea ho pepesehela lithethefatsi ho OFC

E ntse e le potso e bulehileng hore na ke likarolo life tsa bokong hape li fetolang maikutlo a ho se khone ho laola maikutlo a bona. Mokhoa o mong oa ho rarolla potso ena ke ho hlahloba hore na boits'oaro bo tloaelehileng, bo itšetlehileng ka likarolo tse itseng tsa boko kapa lisekhete, bo anngoe ke ho pepeseha hoa lithethefatsi, le ho pheta phetoho thutong e tloaelehileng le boitšoaro bo batlang lithethefatsi mofuteng oa phoofolo o loketseng. Haeba tahlehelo ea taolo ea ho batla lithethefatsi e bonts'a liphetoho tse tlisoang ke lithethefatsi makaleng a mang a boko, ts'oarelo ea liphetoho tsena e lokela ho bonahala ka boits'oaro bo its'etelletseng makaleng ao. Mabapi le sena, ho pepesetsoa lithethefatsi ho bontšitsoe ho ama mekhoa e mengata ea boithuto e ithutoang ke libaka tsa pele, amygdala, le striatum ho rats 55-58. Ho pepesetsoa ha lithethefatsi ho boetse ho fetola tsela eo methapo ea kutlo e ithutileng tsebo ka eona libakeng tsena tsa boko 59; 60. Har'a lithuto tsena, hona joale ho na le bopaki ba hore ho pepesetsoa ha koae ho senya boitšoaro bo tataisoang ke sephetho bo itšetlehileng ka OFC. Mohlala, likhoto tse neng li kile tsa pepesetsoa cocaine matsatsing a 14 (30 mg / kg / day, ip) e ile ea sitoa ho fetola boemo ba karabelo kamora ho tiisoa ha moriana o ka bang khoeli ea 1 kamora ho tlohela 57. Likhoto tse nang le Cocaine le tsona li arabela ka mokhoa o sa ts'oenyeheng ha boholo ba moputso le nako ea ho putsa li sebelisoa ka mesebetsi e khethiloeng likhoeli tse 'maloa ka mor'a ho tlohela 61; 62. Liphoso tsena li tšoana le tse hlahisoang ke OFC lesions 37; 63.

Ho ithuta ka mokhoa o feto-fetohang le hona hoa senyeha kamora ho pepesetsoa koae. Sena se bontšitsoe ka lekhetlo la pele ke Jentsch le Taylor 64 ka litšoene tse fuoeng nako e telele ea koae ka matsatsi a 14 (2 kapa 4 mg / kg / letsatsi, ip). Litšoene tsena li ne li lieha ho fumana ho fetoloa hoa khethollo ea ntho ha ho lekoa matsatsi a 9 le 30 kamora ho khaotsa koae. Ka mokhoa o ts'oanang, re fumane hore likhoto li kile tsa pepesoa koae (30 mg / kg / letsatsi ip bakeng sa matsatsi a 14) li bonts'a ts'ebetso e sa sitiseng ho khutlisetsa morao hoo e ka bang khoeli ea 1 ka mor'a ho tlohela ho moriana oa 65. Joalo ka ha ho bonts'itsoe ho Setšoantšo sa 1B, bofokoli bona thutong e feto-fetohang bo boholo bo ts'oanang le ba likhoto tse nang le mabala a OFC 50; 65; 66.

Phokotso ena ea ho khutlela morao e amahanngoa le ho se atlehe ha li-neuron tsa OFC ho bonts'a sephetho se lebelletsoeng ka nepo 59. Li-Neurons li ne li tlalehiloe ho tsoa ho OFC mosebetsing o ts'oanang le o sebelisitsoeng ka holimo ho bonts'a mathata a ho ithuta a morao-rao; letsatsi le leng le le leng likhoto li ile tsa ithuta buka ea ho ithuta, ho khetholla monko o seng monate, tseo ka tsona ba neng ba arabela litekong tsa monko ho fumana sucrose le ho qoba quinine. Li-neuron tsa OFC, tse tlalehiloeng ho litoeba tse pepesetsoeng koae ka nako e fetang khoeli pele ho moo, li ile tsa thunya ka tloaelo ho latela sephetho sa sucrose le sa quinine, empa sa atleha ho hlahisa likarabo tse ikhethileng ka mor'a ho ithuta. Ka mantsoe a mang, li-neurons tse tsoang ho likhoto tse phekotsoeng ke koae ha lia ka tsa supa sephetho nakong ea sampole ea monko, ha tlhahisoleseling eo e ka sebelisoa ho tataisa karabelo. Tahlehelo ea lets'oao lena e ne e bonahala haholo nakong ea mohlala oa cue e neng e bolela sephetho sa quinine e makatsang ebile e amana le liphetoho tse sa tloaelehang litekong tsa karabelo litekong tsena tse matla. Ntle le moo, ka mor'a ho kopanya mekhatlo ea sephetho sa cue, li-neuron tsa OFC tse litheko tse phekotsoang ka koae tse nang le ts'oaetso e sa feleng li ile tsa sitoa ho fetola khetho ea tsona. Liphetho tsena li tsamaisana le ts'oaetso ea hore li-curoine tse susumetsang koae li senya ts'ebetso e tloaelehileng e tšoaeang ts'ebetso ea OFC, ka hona e fetola bokhoni ba phoofolo ba ho etsa liphetoho tse lumellanang tšebetsong ea 14; 67. Liphetho tsena li boetse li supa hore ts'ebetso e sa tloaelehang ea OFC e bonoang ho lithethefatsi e ka bonts'a liphetoho tse tlisoang ke lithethefatsi ho fapana le kapa ho tlatselletsa ho se sebetse ha OFC pele ho nako.

Ho joalo, ho na le likotsi tse ngata tsa ho sebelisa liphetho tsa lithuto tsa lesion ho theola libaka tse anngoeng ke ho pepesetsoa hoa lithethefatsi. Litlamorao tsa ho pepesetsoa lithethefatsi ka kotloloho ha li tšoane le lesion, 'me litlamorao tsa likarolo tse ling li ka bapisa litlamorao tsa liso. Leha ho le joalo ho sebetsa ho liphoofolo tse sebetsang ho bonts'a hore ho pepesetsoa ha psychostimulant ho baka phetoho matšoao a ts'ebetso ho OFC. Mohlala, likhoto tse koetliselitsoeng ho ikatisa amphetamine li bontša ho fokotseha hoa nako e telele ho OFC dendritic density 68. Ntle le moo, likhoto tse nang le boiphihlelo ba amphetamine li bonts'a polasetiki e fokolang masimong a bona a dendritic ho OFC kamora thupelo ea matla ha e bapisoa le taolo ea 68. Haholo-holo, liphetho tsena li fapana le tse fumanoeng libakeng tse ling tsa boko tse ithutileng, ho kenyelletsa le likarolo tse ling tsa preortal cortex, moo ho pepeseha ha psychostimulant hangata ho eketsang letsoalo la dendritic spine, mohlomong ho bonts'a polasetiki ea neuronal 69-71. Liphetho tsena li qaqisa OFC e le sebaka se bonts'a ho theoha hoa polasetiki - kapa bokhoni ba ho kenyeletsa tlhahisoleseling - ka lebaka la ho pepesehela psychostimulants. Tumellanong le sena, bokhoba ba koae ba cocaine bo fokotsehile ka litaba tsa bohlooho ho OFC 72.

Ho na le litaba tse 'maloa tse lokelang ho nahanoa mabapi le bohlokoa ba sephetho sa lithuto tsa boitsoaro tse hlahang ka holimo ho boemo ba motho. Taba e 'ngoe ke hore lithutong tsohle tse hlahlojoang ka holimo, lithethefatsi li ne li fanoa ntle le khang, li sebelisa li-regimens tse hlahisang ho mamella psychomotor sensitization 73; 74. Boithuto bo 'maloa bo bontšitse liphapang tsa bohlokoa litlamorao tsa ho pepeseha hoa lithethefatsi tse sa amaneng le tse se nang khang mabapi le ts'ebetso ea boko le boits'oaro 75-78. Ntle le moo, ho na le bopaki bo fokolang ba hore maikutlo a psychomotor a bonahatsoa ke lithethefatsi tse sa foleng tsa cocaine kapa litšoeneng tse nang le nalane e pharalletseng ea ts'ebetso ea ts'ebetso ea koae ka 79. Kahoo, ho bohlokoa ho tseba hore litšila mesebetsing e itšetlehileng ka OFC tse hlokometsoeng ho latela melao ea phumano ea koae e se nang khang li boetse li bonoa mehlaleng ea tšebeliso ea lithethefatsi e kenyelletsang tšebeliso ea lithethefatsi tse matla (ke hore, boitaolo ba lithethefatsi). Ka hona, haufinyane re tlaleha hore likhoto tse koetliselitsoeng ho ikhalemela koae bakeng sa 14 d bakeng sa 3 h / d (0.75 mg / kg / infusion) li bontšitse bofokoli bo tebileng ba ho ithuta ho fihlela likhoeli tse tharo kamora ho tlohela ts'ebeliso ea lithethefatsi 80. Joalo ka ha ho bonts'itsoe ho Setšoantšo sa 1C, bofokoli bona bo bocha bo ne bo tšoana hantle le bo ileng ba bonoa kamorao ho ho pepeseha ha koae ea cocaine 65 kapa kamora ho lahla ha OFC 50.

Taba e ngoe e lokelang ho nahanoa ke hore lithutong tsena tsohle, bofokoli ba OFC bo bontšitsoe liphoofolong tsa mahlale tse neng li sa sebetse ka nako e itseng. Ka lebaka leo, nako le nako le phello ea phello ea tšebeliso ea lithethefatsi mosebetsing oa OFC ha e tsejoe haholo. Phapang e le 'ngoe ke thuto e entsoeng ke Kantak le basebetsi ba 81 moo ba ileng ba leka phello ea ho pepesetsoa ha koae ho mosebetsi oa phetoho ea phetoho ea phetoho ea phetoho ea XCUMX. Bangoli bana ba tlaleha hore boits'oaro mosebetsing ona bo ne bo sitisoa ke koae e se nang phehisano empa e se phehisano lipakeng tsa litoeba tse ileng tsa lekoa hang kamora linako tse sa khaotseng tsa taolo ea koae. Sephetho sena se bontša hore ho pepesetsoa ha koae ho ka ba le phello e potlakileng mesebetsing e itšetlehileng ka OFC. Ho khahlisang, ho sitoa ha ho pepesetsoa ha koae ka boits'oaro bo sa tsotelleng mabapi le boits'oaro bo tsamaisanang le litlaleho tse hlahlojoang ka holimo ho fana ka maikutlo a hore phello ea ho pepesetsoa ha lithethefatsi ts'ebetsong ea OFC e ka nyoloha kamora ho tlohela ts'ebeliso ea lithethefatsi.

Qetellong, ho pepesetsoa ha koae (ho ka ba le khang kapa ho sa phehisane) ho lebisa khaellong e telele ea boits'oaro bo ts'epahalang ba OFC bo tšoanang ka boholo ho ba hlokometsoeng ka mor'a lits'oa tsa OFC. Ho pepesetsoa ha koae e se nang phehisano ho boetse ho lebisa ho liphetoho tsa sebopeho tsa li-neuron tsa OFC, mohlomong ho bonts'a ho fokotseha ha plasticity ho li-neuron tsena, le ho kenella ka mokhoa o sa tloaelehang oa neuronal ho OFC. Ka mor'a moo, re hlalosa sephetho ho tsoa lithutong tse ileng tsa lekola karolo ea OFC moputsong oa lithethefatsi le ho khutla hape, joalo ka ha ho lekantsoe ho 83 ea lithethefatsi le ho khutlisetsoa mefuta ea 84.

Karolo ea OFC ts'ebetsong ea lithethefatsi le ho khutla hape

Lintlha tse hlahlojoang ka holimo li bontša hore ts'ebetso ea OFC e fetoloa ke ho pepesetsoa lithethefatsi khafetsa. Potso e nkiloeng ho lintlha tsena ke hore na OFC e bapala karolo efe ho arola boits'oaro ba ho sebelisa lithethefatsi mefuteng ea liphoofolo. Ho makatsang ke hore ke lipampiri tse 'maloa tse ileng tsa hlahloba potso ena ka ho toba. Thutong ea pele, Phillips et al. 85 e tlalehile hore litšoene tse 'ne tsa rhesus tse iphetetseng ka boiketlo li-amphetamine (10-6 M) ho OFC. Ka mokhoa o makatsang, litšoene tse tšoanang ha lia ka tsa ipehela amphetamine ka har'a li-nucleus accumbens, e leng sebaka se tsejoang se amehang liphellong tse thabisang tsa amphetamine ho likhoto tsa 86. Hutcheson le Everitt 87 le Fuchs et al. 88 e tlalehile hore liso tsa neurotootic OFC ha lia ka tsa sitisa ho fumana tsamaiso ea koae ka tlas'a kemiso e tsitsitseng ea 1 ea li-rats. Hutcheson le Everitt 87 le bona ba tlalehile hore mabala a OFC ha a na matla ho seo 'mele o ka se etsang ha o sebelisoa ke "cocaine" (0.01 ho 1.5 mg / kg). Le ha ho le thata ho bapisa lithuto tsa litona le tsa litšoene hobane ho se tšoane ka tšebeliso ea lithethefatsi le mekhoa ea tsamaiso, le mefuta e ka bang teng ea mefuta ea OFC anatomy 89, liphetho tsa lithuto tsa litekanyetso li bontša hore OFC ha e bohlokoa bakeng sa litlamorao tse ntle tsa boithati - e sebelisang koae ka ente. Tlhokomeliso ena e ts'oana le sephetho lithutong tse tloaelehileng tsa ho ithuta, tse bonts'ang hore hangata mabala a OFC ha a na phello ea ho ithuta ho arabela bakeng sa meputso eo eseng ea lithethefatsi maemong a fapaneng a 37; 50; 90.

Ka lehlakoreng le leng, Hutcheson le Everitt 87 ba fumane hore OFC e hlokahala bakeng sa maemo a matlafatsang a bakoang ke cocaine e amanang le koae, joalo ka ha e lekantsoe kemisong ea tatellano ea bobeli ea ts'ebetso ea matlafatso ea 91; 92. Ba tlalehetse hore marapo a neurotootic OFC a nyenyefalitse bokhoni ba lik'hok'heine tsa koae tsa cocaine ho boloka karabelo e sebetsang. Ka mokhoa o ts'oanang, Fuchs et al. 88 e tlaleha hore inactivation inactivation of the lateral (empa eseng medial) OFC e nang le motsoako oa agonists ea GABAa + GABAb (muscimol + baclofen) e sitisitse maemo a matlafatsang a cessine ea cocaine, joalo ka ha e lekantsoe ts'ebetsong e ntlafalitsoeng ea cueine-ikiwa. Bopaki bo bong bo ka eketsang karolo ea OFC mabapi le ho ts'oaroa ke koae ke hore ho pepesehela lits'ebetso tse neng li entsoe ka nako e 'ngoe le taolo ea koae ho eketsa tlhahiso ea mofuta oa pele oa mofuta oa Zif268 (letšoao la ts'ebetso ea methapo ea kutlo) sebakeng sena sa 93. Hajoale lintlha tsena li bonts'a hore OFC e bapala karolo ea bohlokoa ho hola bokhoni bo ikhethang ba litloaelo tse amanang le lithethefatsi ho susumetsa boitšoaro bo batlang lithethefatsi. Karolo e joalo e ka bonts'a karolo ea OFC e hlalositsoeng pejana ho ho fumana le ts'ebeliso ea mekhatlo ea sephetho sa cue 37; 38; 53. Ho joalo, leseli la OFC le sitisa ho arabela bakeng sa ho tiisa maemo maemong a sa amaneng le lithethefatsi 94-96 mme hape ho tlalehiloe haufinyane ho ama phetisetso ea XPNXX ea Pavlovian, ho bonts'a hore OFC e ts'ehetsa bokhoni ba likhakanyo tsa Pavlovian ho tataisa karabelo e sebetsang.

Ho khahlisang, Fuchs et al. 88 e tlaleha mohlala o fapaneng oa sephetho ha ba etsa marang-rang a ofal kapa a medial OFC pele ho koetliso. Ba fumane hore liso tsena tsa pele ho thupelo ha li na phello ea ho khutlisetsoa ka matla ho ho batleng koae. Hobane liso tsena li entsoe pele ho thupelo ea boits'ireletso, OFC e ne e sa fumanehe ho nka karolo ho etseng mokhatlo oa cue-cocaine. Ka lebaka leo, likhoto tse seotsoeng li kanna tsa ithuta ho itšetleha haholo ka likarolo tse ling tsa boko tse kentsoeng ho koaetsoeng ke koae ea cueine e kenyang 97.

Kamora nako, OFC e boetse e bonahala e le bohlokoa bakeng sa ho khutlisetsa khatello ea maikutlo bakeng sa ho batla lithethefatsi. Lithuto tse fetileng li sebelisa mokhoa oa ho khutlisetsa 10; 98 e bontšitse hore ho pepesehela khatello ea kelello ea nakoana ea nakoana ho ntlafatsa khatello ea lithethefatsi kamora ho ikoetlisa bakeng sa taolo ea lithethefatsi le ho felisoa ha 99 e matlafalitsoeng ke lithethefatsi; 100. Haufinyane tjena, Capriles et al. 101 e bapisitse karolo ea OFC maemong a ho khutlisa khatello ea maikutlo le ho khutlisetsoa ka hare ke ente ea ente ea cocaine. Ba fumane hore inactivation e sebetsang ea OFC e nang le tetrodotoxin e fokotse khatello ea maikutlo - empa eseng ts'usumetso ea ts'ebeliso ea koae. Ba boetse ba tlalehile hore liente tsa D1-like receptor antagonist SCH 23390 empa eseng D2-like receptor antagonist raclopride ho OFC li koenehetse khatello ea maikutlo.

Qetellong, lingoliloeng tse fokolang tse hlahlojoang ka holimo li fana ka maikutlo a hore mohlomong OFC ha e arolelane litlamorao tse matla tsa koae e ikemetseng, empa e nka karolo bokhoni ba cocaine cessine le khatello ea maikutlo ho nts'etsapele lithethefatsi. Ntle le moo, li-receptor tsa D1 tse kang dopamine ho OFC li kentse letsoho ho khutlisetsang khatello ea maikutlo ho phehellang ho batla koae.

Liphetho le mekhoa ea nako e tlang

Liphetho tsa lithuto tse sebelisang boits'ebetso ba ho itaola le ho khutlisetsa mekhoa ea ho khutlisa li bontša karolo e rarahaneng ea OFC moputsong oa lithethefatsi le ho oela hape. Re ka fihlela liqeto tse 'maloa tse bohlale lithutong tsena tsa kalafo. Taba ea mantlha, OFC ha e bonahale e bapala karolo ea bohlokoa phumatsong e matla ea koae kapa ho khutlela mokhoeng o mong o hlahisoang ke ho pepesetsoa lithethefatsi ka mokhoa o matla. Sephetho sena se tsamaisana le tlhaiso-leseling e bonts'ang hore OFC ha e hlokehe hangata hore liphoofolo li ithute ho arabela bakeng sa moputso, ka mohlomong ka lebaka la ts'ebetso ea lits'ebetso tsa ho ithuta tse ngata, tse tšoanang tsa 37; 50; 90.

Taba ea bobeli ke hore, OFC e bonahala e bapala karolo ea bohlokoa bokhoni ba litloaelo tse amanang le lithethefatsi ho etsa hore batho ba batle koae. Liphumano tsena li lumellana le liphetho tse tsoang lipatlisisong tsa monahano tse bontšang ts'ebetso e matla ea OFC ke litheko tse amanang le lithethefatsi 15. Liso kapa inactivation ea OFC e ka fokotsang takatso ea lithethefatsi, ka lebaka la ho se khone ho kenya ts'ebetso tlhahisoleseling mabapi le boleng bo lebelletsoeng ba moriana oa 36. Potso e le 'ngoe bakeng sa lipatlisiso tsa nako e tlang ke nako ea liphetoho tsa tšebeliso ea lithethefatsi ho OFC le hore na OFC e kentse letsoho keketsehong ea nako e telele ea ho ts'oara koae ka mor'a ho tlohela 102-104, ketsahalo e reng e ts'oara takatso ea takatso.

Taba ea boraro, OFC e boetse e bonahala e le bohlokoa bakeng sa ho khutlisetsoa ha khatello ea kelello bakeng sa ho batla koae. Ho tlalehiloe hore phello ea khatello ea kelello ea footshock mabapi le ho khutlisoa ha ho ts'oana le koae e itšetlehile ka ho ba teng ha molumo o bobebe oa leseli la 105. Kahoo, karolo ea OFC ho tsamaisang khatello e tlisoang ke khatello ea maikutlo e ka ba ea bobeli ho phello ea khatello ea maikutlo mabapi le karabelo e laoloang ke cue.

Ho bohlokoa ho totobatsa hore liqeto tsa rona mabapi le karolo ea OFC taolong ea lithethefatsi le ho khutla hape ke tse ling tse nahanoang ka hore li fuoe data e fokolang haholo. Taba e le 'ngoe eo u lokelang ho e ela hloko ke hore monehelo oa OFC mekhoeng ea ho ts'oara lithethefatsi o ka bonts'a liphetoho phetohong ea OFC e bakiloeng ke ho pepeseha ha moriana. Ka lebaka la sena, ho toloka litlamorao tsa ho ruruha kapa litlatsetso tse ling tsa meriana mabapi le lithethefatsi kapa khatello ea maikutlo lithutong tse nang le nalane ea taolo ea lithethefatsi ho tlameha ho etsoa ka hloko.

Taba ea bobeli ebile mohlomong e bohlokoa haholo ho nahanoa ke hore mefuta ea liphoofolo ea hona joale ea ho itlhokofatsa ka lithethefatsi le ho khutlela morao e ka se be e loketseng ho lekola hore na karolo ea OFC e bapala karolo efe litabeng tsa bokhoba ba lithethefatsi. Ntle le karolo ea eona ea kakaretso ea ho kenyelletsa boits'oaro bo tataisoang ke sephetho, OFC e bonahala e le bohlokoa haholo ho lemoha le ho arabela liphetoho liphellong tse lebelletsoeng 38; 43; 50. Sena se bonahala haholo ha sephetho se fetoha ho tloha ho se sebe ho ea ho se sebe kapa ha e lieha kapa e le fetohang 37; 50; 63; 106-108. Mona re sekasekile bopaki ba hore ts'ebetso ena ea OFC e sitisoa ke ho pepesehela lithethefatsi tse lemalloang, e lebisang ho ho etsa liqeto ka liqeto tse fosahetseng le tse sa potlakang tsa 57; 58; 61; 62; 64; 65; 80. Ho latela hore boitšoaro ba ho batla lithethefatsi ho batho e kanna ea ba litholoana tsa tekatekano lipakeng tsa takatso ea nakoana ea lithethefatsi le tlhahlobo ea litakatso tse tloaelehileng mme hangata li liehisa litlamorao tsa lithethefatsi tse batlang 109-111, litlamorao tsa lithethefatsi ho bokhoni ba OFC ho Lipontšo tse liehang kapa tse hlahisoang ka kotloloho li ka etsa hore batho ba lemaletseng ho tela tšebeliso ea lithethefatsi tsa nakoana le kapele. Leha ho le joalo litla-morao tse joalo li ne li ke ke tsa bonahala mefuteng e mengata ea hajoale ea tšebeliso ea lithethefatsi le ho khutlela morao, eo hangata e sa bonts'eng khohlano ea motho ea lemallo lipakeng tsa liphetho tse potlakileng le tse liehang.

Le ha lithuto tsa pejana li ne li kenyelletsa mekhoa ea kotlo ea ho hlahloba 112 ea lithethefatsi; 113, haufinyane tjena ke haufinyane feela moo bafuputsi ba bangata ba bokhoba ba lemalloang ba khutletseng ho mefuta ena. Bafuputsi bana ba tlalehile hore likhoto tse ling tse nang le nalane e pharaletseng ea ho pepesehela lithethefatsi li tla tsoelapele ho kenella liketsong tsa ho sebelisa lithethefatsi ha li tobana le kotlo kapa litlamorao tse mpe tseo ka tloaelo li neng li ka hatella 114-116 ea lithethefatsi kapa lithethefatsi. Lits'ebetso tsa kotlo- kapa tse amanang le likhohlano li boetse tsa hlahisoa haufinyane ho lekola ho khutlisetsoa lithethefatsi- le ho ts'oarisoa ke motsoako oa ts'ebetso ea lithethefatsi 117. Ts'ebetso tsena li ka ba boemong bo botle ba ho khetholla karolo ea OFC tšebelisong ea lithethefatsi, hobane li bontša haholo-holo likarolo tse tsebahalang tsa OFC ka boits'oaro le boitšoaro ba motho ea lemaletseng lithethefatsi. Kahoo, ho lekola karolo ea OFC lithutong tsa khalemelo kapa tsa khang ke karolo ea bohlokoa ea lipatlisiso tsa nako e tlang. Ntlheng ena, re ipapisitse le mehloli ea bosholu ba thuto ea koae ka mor'a ho pepesetsoa koae, re bolela esale pele hore liphetoho tse tlisoang ke koae ka ts'ebetso ea ts'ebetso ea koae li tla amahanngoa le bokhoni bo fokotsehang ba ho hatella ho arabela maemong a mabe.

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