Kev xav, Txhawb, Txiav txim txiav txim siab tuaj yeem cuam tshuam
Txawm hais li cas, kev siv cov yeeb tshuaj los ntawm cov tub ntxhais hluas tuaj yeem cuam tshuam rau lub cheeb tsam ntawm lub hlwb uas muaj kev cuam tshuam, kev txhawb thiab kev txiav txim siab thiab cov kws tshawb fawb hais tias thawj zaug lawv muaj pov thawj los ua pov thawj rau nws.
Cov duab MRI ntawm cov paj hlwb ntawm 18 mus rau 25 xyoo qhia tau tias kev haus luam yeeb maj mam hloov qhov loj me, zoo li cas thiab qhov sib txawv ntawm ob lub hlwb lub hlwb.
Qhov txawv ntawm lub hlwb txawv txav piv rau cov neeg tsis haus luam yeeb yog ncaj qha ntsig txog ntau npaum li cas yeeb tshuaj, cov kws tshawb nrhiav tau pom.
Yav dhau los kev tshawb fawb ntawm cov Hnyav Smokers
Muaj ntau cov kev tshawb fawb yav dhau los uas tau txuas yeeb tshuaj los siv rau kev puas tsuaj hauv kev xav, kev mloog, kev kawm, thiab kev nco. Cov kev tshawb fawb tau pom tias cov yeeb yaj kiab ntev siv tau ua rau lub siab tsis zoo . Lwm cov kev tshawb fawb tau txuas cov yeeb yaj kiab uas siv rau kev kawm tsis tau thiab kev sib raug zoo .
Lwm cov kev tshawb nrhiav tau pom tias kev haus luam yeeb tshuaj yuav ua rau muaj kev muaj peev xwm tswj hwm thiab lwm txoj kev tshawb pom pom tias cov yeeb tshuaj thaum ntxov ua rau ua rau lub hlwb tsis pom cov neeg uas pib haus luam yeeb marijuana tom qab lub neej.
Cov Cuam Tshuam Tsis Taus Nyab Xeeb
Tab sis feem ntau, yog tias tsis yog txhua yam, ntawm cov kev tshawb fawb muaj feem xyuam, mob hnyav hnyav hnyav dua. Ib txoj kev tshawb no tsis ntev los no, luam tawm hauv Phau Tsom of Neuroscience , yog thawj txuas rau xws li, kev siv tshuaj yeeb thaum siv cov kev tsis zoo los ntawm lub hlwb.
Txawm hais tias qhov loj me me ntawm txoj kev tshawb no yog me me - tsuas yog 40 tag nrho cov kev kawm, suav nrog 20 tsis-marijuana siv tswj - qhov txawv ntawm cov hlwb ntawm ob pawg tau zoo tshaj, cov sau phau ntawv qhia.
Cov kws tshawb fawb hauv Northwestern University thiab Massachusetts General School / Harvard Kho Tsev Kawm Ntawv tau siv cov khoom sib txawv ntawm cov neeg hluas los sib piv cov paj hlwb ntawm 20 tus neeg hluas uas tau tshaj tawm cov tshuaj yeeb dawb luam yeeb tsawg kawg ib zaug toj ib lub hlis nrog 20 lwm tus neeg muaj hnub nyoog 18-25 uas tau qhia me ntsis txog kev siv tshuaj maj.
Xwb, Cov Neeg Siv Ubno Xwb
Cov kws tshawb fawb ntsuas lub ntim, qhov sib txawv thiab qhov sib txawv ntawm qhov teeb meem grey hauv lub keeb tawm thiab cov amygdala. Lub nucleus accumbens muaj kev koom tes hauv kev ua nqi zog thiab kev txiav txim siab, thaum lub amygdala muaj feem xyuam nrog kev xav.
Cov neeg tau koom kev tshuaj ntsuam xyuas los txiav txim siab tias tsis muaj leej twg nyob rau ntawm cov tshuaj maj los yog lwm yam tshuaj thiab tsis muaj leej twg koom tau ua phem rau lwm cov tshuaj.
Cov neeg uas siv cov tshuaj maj yuav kom lawv kwv yees lawv cov tshuaj maj siv dua 3 lub hlis, nrog rau cov hnub uas lawv haus luam yeeb thiab cov tshuaj noj txhua hnub.
Loj, Puab thiab Ntoo Hloov
Cov soj ntsuam ntawm pom tias ntau dua cov neeg siv yeeb tshuaj xas tuaj qhia, qhov ntau dua qhov txawv txav ntawm cov keeb kwm nucleus accumbens thiab amygdala ntawm cov duab MRI. Cov duab thiab ntom ntawm ob thaj tsam ntawm lub hlwb kuj txawv ntawm cov neeg siv yeeb tshuaj xas thiab cov tsis yog siv.
Cov paj taub hau ntawm cov neeg haus luam yeeb tsuas yog ib leeg sib koom ib hnub los yog cov neeg haus luam yeeb xwb ib lim piam raug hloov.
"Qhov kev tshawb fawb no ua rau muaj kev nyuaj rau lub tswv yim hais tias kev siv yeeb tshuaj tsis sib txuas yog tsis cuam tshuam nrog qhov yuav tshwm sim phem," said Hans Breiter, MD ib qho ntawm cov kev tshawb fawb sau. "Ib txhia ntawm cov neeg no tsuas yog siv tshuaj yeeb dawb xwb tom qab ib zaug lossis ob zaug ib lim piam,"
Kev Siv Qee Yeej Ua Tau Ua Teeb Meem
"Cov neeg xav hais tias kev siv lub caij ua si tsis tsim nyog yuav tsum tsis txhob ua teeb meem, yog tias ib tug neeg ua haujlwm nrog kev ua haujlwm lossis tsev kawm ntawv Peb cov ntaub ntawv qhia ncaj qha hais tias qhov no tsis yog qhov teeb meem," Breiter hais hauv xov xwm tshaj tawm.
Lwm cov neeg tshawb nrhiav, tsis koom rau hauv Massachusetts General txoj kev tshawb pom, pom zoo tias kev nrhiav kev hloov hauv cov paj hlwb cov neeg siv yeeb tshuaj maub zog yog ib qho txawv heev.
"Qhov kev tshawb kawm no qhia tias txawm tias cov teeb meem me me mus rau kev siv tshuaj yeeb yuav muaj peev xwm hloov tau ntawm lub hlwb lub cev," said Carl Lupica, PhD, ntawm National Institute on Drug Abuse. "Cov kev soj ntsuam no yog tshwj xeeb tshaj yog vim cov kev tshawb fawb dhau los tau tsom feem ntau ntawm cov hlwb ntawm cov yeeb nkab hnyav hnyav, thiab tsis paub cov hlwb ntawm cov neeg siv li cas."
Cov kev tshawb fawb tau pab nyiaj los ntawm National Institute on Drug Abuse, Chaw Ua Haujlwm Saib Xyuas Txoj Cai Tswjfwm Tsav Tebchaws, Tshuaj Counterdrug Technology Assessment Center, thiab National Institute of Neurological Disorders thiab Stroke.
Puas muaj cwj pwm haus luam yeeb ua ib qho teeb meem rau koj?
Coj cov tshuaj xyuas koob tshuaj nplaum Marijuana
Qhov chaw:
Bloomfield M, thiab al 'Dopaminergic muaj nuj nqi nyob rau hauv cov neeg siv Cannabis thiab nws cov kev sib raug zoo rau cov Cannabis-vim raug mob hlwb' Biological Psychiatry, 29 Lub rau hli ntuj 2013
Crystal, JD, li al. "Cannabinoid Modulation ntawm rhiab heev rau lub sij hawm." Cwj Pwm Kev Txawj Ntsuam Kev Coj Ntsuam . Lub Cuaj Hli Ntuj 2003
Gillman, JM, li al. "Cannabis Siv Yog Quantitatively nrog Nucleus Accumbens thiab Amygdala Abnormalities nyob rau hauv Cov Neeg Hluav Taws Xob Ua Si Cov Neeg Hluas." Cov Phau Tubrog Ntxhais Tub Hluas 16 Tim 2014.
Pope, HG, li al. "Kev siv thaum ntxov pib siv cannabis thiab kev paub lub hlwb: dab tsi yog qhov xwm ntawm lub koom haum?" Kev Siv Tshuaj thiab Dej Cawv 1 Tim 2003.