Warning: Declaration of action_plugin_denyactions::register(Doku_Event_Handler &$controller) should be compatible with DokuWiki_Action_Plugin::register(Doku_Event_Handler $controller) in /homepages/7/d191477725/htdocs/e-cigarette-research/lib/plugins/denyactions/action.php on line 40

Warning: Declaration of action_plugin_tagfilter::register(&$controller) should be compatible with DokuWiki_Action_Plugin::register(Doku_Event_Handler $controller) in /homepages/7/d191477725/htdocs/e-cigarette-research/lib/plugins/tagfilter/action.php on line 60

Warning: Cannot modify header information - headers already sent by (output started at /homepages/7/d191477725/htdocs/e-cigarette-research/lib/plugins/denyactions/action.php:40) in /homepages/7/d191477725/htdocs/e-cigarette-research/inc/auth.php on line 430

Warning: Use of undefined constant wrap - assumed 'wrap' (this will throw an Error in a future version of PHP) in /homepages/7/d191477725/htdocs/e-cigarette-research/lib/plugins/ckgedit/action/meta.php on line 649

Warning: Cannot modify header information - headers already sent by (output started at /homepages/7/d191477725/htdocs/e-cigarette-research/lib/plugins/denyactions/action.php:40) in /homepages/7/d191477725/htdocs/e-cigarette-research/lib/plugins/ckgedit/action/meta.php on line 669

Warning: Cannot modify header information - headers already sent by (output started at /homepages/7/d191477725/htdocs/e-cigarette-research/lib/plugins/denyactions/action.php:40) in /homepages/7/d191477725/htdocs/e-cigarette-research/inc/actions.php on line 38

Warning: Cannot modify header information - headers already sent by (output started at /homepages/7/d191477725/htdocs/e-cigarette-research/lib/plugins/denyactions/action.php:40) in /homepages/7/d191477725/htdocs/e-cigarette-research/lib/tpl/dokuwiki/main.php on line 12
Investigating the impact of nicotine on executive functions using a novel virtual reality assessment [E-Cigarette Research]
research:documents:6xxcfun9

Investigating the impact of nicotine on executive functions using a novel virtual reality assessment

Journal Article 1)

Aims
Nicotine is known to enhance aspects of cognitive functioning in abstinent smokers, but the effects on specific areas of executive functions and in non-smokers are inconclusive. This may be due in part to the poor sensitivity of tests used to assess executive functions. This study used a new virtual reality assessment of executive functions known as JEF (the Jansari assessment of Executive Functions) to address this issue.

Design
A 2 × 2 design manipulating group (smokers and never-smokers) and drug [nicotine (4 mg for smokers; 2 mg for never smokers) versus placebo gum]. Setting School of Psychology; University of East London Participants Seventy-two participants (aged 18–54 years): 36 minimally deprived (2 hours) smokers and 36 never-smokers.

Measurements
Components of executive function were measured using the virtual reality paradigm JEF, which assesses eight cognitive constructs simultaneously as well as providing an overall performance measure.

Findings
Univariate analyses of variance revealed that nicotine improved overall JEF performance, time-based prospective memory and event-based prospective memory in smokers (P < 0.01), but not in never-smokers. Action-based prospective memory was enhanced in both groups (P < 0.01) and never-smokers out-performed smokers on selective thinking and adaptive thinking (P < 0.01).

Conclusions
Executive functioning and prospective memory as aspects of cognitive performance can be enhanced by nicotine gum in smokers who have abstained for as little as 2 hours.


z-ref: 6xxcfun9

1)
Dawkins , et al. (2013), Investigating the impact of nicotine on executive functions using a novel virtual reality assessment, http://onlinelibrary.wiley.com/doi/10.1111/add.12082/abstract accessed: 2013-11-11
research/documents/6xxcfun9.txt · Last modified: 2014/03/29 19:43 by rainman