Effects of sleep deprivation on Color-Word, Emotional, and Specific Stroop interference and on self-reported anxiety.
Brain and Cognition. 2006-02-01; 60(1): 76-87
Lire sur PubMed
1. Brain Cogn. 2006 Feb;60(1):76-87. Epub 2005 Nov 28.
Effects of sleep deprivation on Color-Word, Emotional, and Specific Stroop
interference and on self-reported anxiety.
Sagaspe P(1), Sanchez-Ortuno M, Charles A, Taillard J, Valtat C, Bioulac B,
(1)Département de Psychologie, Laboratoire EA 3662, Université Bordeaux 2, Victor
Segalen, 33076 Bordeaux Cedex, France.
The aim of this study was principally to assess the impact of sleep deprivation
on interference performance in short Stroop tasks (Color-Word, Emotional, and
Specific) and on subjective anxiety. Subjective sleepiness and performance on a
psychomotor sustained attention task were also investigated to validate our
protocol of sleep deprivation. Twelve healthy young subjects were tested at
four-hourly intervals through a 36-h period of wakefulness under a constant
routine protocol. Analyses of variance for repeated measurements revealed that
self-assessment of sleepiness on a visual analogue scale as well as mean reaction
time performance on the sustained attention task, both for the first minute and
for 10 min of testing, were worsened by sleep deprivation. Analyses revealed an
increase in self-reported anxiety scores on the STAI questionnaire but did not
reveal any significant effect after sleep deprivation either on indexes of
interference or on accuracy in Stroop tasks. However, analyses showed sensitivity
to circadian effect on verbal reaction times in the threat-related (Emotional)
and sleep-related (Specific) Stroop tasks. We concluded that 36 h of prolonged
wakefulness affect self-reported anxiety and Emotional Stroop task resulting in a
cognitive slowing. Moreover, total sleep deprivation does not affect interference
control in any of the three short Stroop tasks.
PMID: 16314019 [Indexed for MEDLINE]