Long-Term Effects of Chronic Khat Use: Impaired Inhibitory Control

Frontiers in Psychology

Lorenza S. Colzato¹ 

关键词: khat;    SSRT;    dopamine;    stop-signal task;    chronic use;    long-term effect;   

DOI  :  10.3389/fpsyg.2010.00219

学科分类：心理学（综合）

来源: Frontiers

【 摘 要 】

So far no studies have systematically looked into the cognitive consequences of khat use. This study compared the ability to inhibit and execute behavioral responses in adult khat users and khat-free controls, matched in terms of age, race, gender distribution, level of intelligence, alcohol and cannabis consumption. Response inhibition and response execution were measured by a stop-signal paradigm. Results show that users and non-users are comparable in terms of response execution but users need significantly more time to inhibit responses to stop signals than non-users.

【 授权许可】

CC BY