Liang CW, Zhong RYX, Chung YC, Pan CH, Yen MY, Cheng CP, Hsu WY. Using cognitive modelling to investigate the psychological processes of the Go/NoGo discrimination task in male abstinent heroin misusers.
Addiction 2014;
109:1355-62. [PMID:
24750243 DOI:
10.1111/add.12591]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 11/27/2013] [Accepted: 04/11/2014] [Indexed: 11/29/2022]
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.
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