Long-term effects of chronic khat use: impaired inhibitory control

Open Access
Authors
  • B. Hommel
Publication date 2011
Journal Frontiers in Psychology
Article number 219
Volume | Issue number 1
Number of pages 5
Organisations
  • Faculty of Social and Behavioural Sciences (FMG) - Psychology Research Institute (PsyRes)
Abstract 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.
Document type Article
Language English
Published at https://doi.org/10.3389/fpsyg.2010.00219
Downloads
359635.pdf (Final published version)
Permalink to this page
Back