Article (Scientific journals)
A Time to Think: Circadian Rhythms in Human Cognition
Schmidt, Christina; Collette, Fabienne; Cajochen, Christian et al.
2007In Cognitive Neuropsychology, 24 (7), p. 755-89
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Abstract :
[en] Although peaks and troughs in cognitive performance characterize our daily functioning, time-of-day fluctuations remain marginally considered in the domain of cognitive psychology and neuropsychology. Here, we attempt to summarize studies looking at the effects of sleep pressure, circadian variations, and chronotype on cognitive functioning in healthy subjects. The picture that emerges from this assessment is that beyond physiological variables, time-of-day modulations affect performance on a wide range of cognitive tasks measuring attentional capacities, executive functioning, and memory. These performance fluctuations are also contingent upon the chronotype, which reflects interindividual differences in circadian preference, and particularly upon the synchronicity between the individuals' peak periods of circadian arousal and the time of the day at which testing occurs. In themselves, these conclusions should direct both the clinician's and the researcher's attention towards the utmost importance to account for time-of-day parameters when assessing cognitive performance in patients and healthy volunteers.
Research center :
GIGA CRC (Cyclotron Research Center) In vivo Imaging-Aging & Memory - ULiège
Centre de Neurosciences Cognitives et Comportementales - ULiège
Disciplines :
Theoretical & cognitive psychology
Author, co-author :
Schmidt, Christina  ;  Université de Liège - ULiège > Département des sciences cognitives > Neuropsychologie
Collette, Fabienne  ;  Université de Liège - ULiège > Département des sciences cognitives > Neuropsychologie
Cajochen, Christian
Peigneux, Philippe ;  Université de Liège - ULiège > Département des sciences cognitives > Département des sciences cognitives
Language :
English
Title :
A Time to Think: Circadian Rhythms in Human Cognition
Publication date :
October 2007
Journal title :
Cognitive Neuropsychology
ISSN :
0264-3294
eISSN :
1464-0627
Publisher :
Taylor & Francis, United Kingdom
Volume :
24
Issue :
7
Pages :
755-89
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 24 January 2009

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