Using cognitive modelling to investigate the psychological processes of the Go/NoGo discrimination task in male abstinent heroin misusers.
Addiction
; 109(8): 1355-62, 2014 Aug.
Article
em En
| MEDLINE
| ID: mdl-24750243
ABSTRACT
AIMS:
To use cognitive modelling to investigate psychological processes underlying decision-making in male abstinent heroin misusers (AHMs).DESIGN:
A case-control study design.SETTING:
A drug misuse treatment centre in Taiwan.PARTICIPANTS:
Eighty-eight male AHMs and 48 male controls. MEASUREMENTS Four parameters representing the attention to wins, learning rate, response sensitivity and incentive of heroin-related stimuli from the modified Go/NoGo discrimination task.FINDINGS:
A modified cue-dependent learning (CD) model with four parameters representing attention to wins, learning rate, response sensitivity and incentive of heroin-related stimuli had a lower value of the sum of Bayesian information criterion (showing a better fit) than the original CD model (9555.50 versus 11,192.22, P < 0.001). The AHM group had a higher value of the heroin-incentive parameter than the control group (0.26 versus -1.66, P < 0.05). The attention to wins and heroin-incentive parameters were associated positively with total commission rate and negatively with total omission rate in the AHM group (P < 0.001).CONCLUSIONS:
Male abstinent heroin misusers appear to be more influenced by heroin-related stimuli during decision-making than males with no history of heroin misuse.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Cognição
/
Discriminação Psicológica
/
Dependência de Heroína
/
Testes Neuropsicológicos
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article