TY - JOUR
T1 - Interindividual differences in neurobehavioral performance in response to increasing homeostatic sleep pressure
AU - Zhou, Xuan
AU - Ferguson, Sally A.
AU - Matthews, Raymond W.
AU - Sargent, Charli
AU - Darwent, David
AU - Kennaway, David J.
AU - Roach, Gregory D.
N1 - Funding Information:
The authors gratefully acknowledge the final support from the Australian Research Council under the Discovery Project grant scheme. The authors also wish to thank Professor Hans P. A. Van Dongen for his helpful suggestions on data analyses.
PY - 2010/6
Y1 - 2010/6
N2 - Neurobehavioral function deteriorates with increasing homeostatic sleep pressure during wakefulness. It has been claimed that some individuals exhibit a quicker rate of such deterioration than others, thus being more vulnerable than others to the detrimental impact of increasing homeostatic sleep pressure. Evidence supporting the claim, however, has been limited by methodological issues. To overcome these limitations, the current study used a 12-calendar-day, 28-h forced desynchrony (FD) protocol (sleep:wake period1:2) to study individual differences in the rate of change in neurobehavioral performance with increasing homeostatic sleep pressure. Neurobehavioral performance was assessed with a psychomotor vigilance task and a serial addition subtraction task. A significant performance decline on both tasks was revealed within as short as 17h of wakefulness. The rates of decline of individual performance trajectories were, however, not different from the group average rate. This suggests that individuals are not differentially vulnerable to the detrimental impact of increasing homeostatic sleep pressure. copyright
AB - Neurobehavioral function deteriorates with increasing homeostatic sleep pressure during wakefulness. It has been claimed that some individuals exhibit a quicker rate of such deterioration than others, thus being more vulnerable than others to the detrimental impact of increasing homeostatic sleep pressure. Evidence supporting the claim, however, has been limited by methodological issues. To overcome these limitations, the current study used a 12-calendar-day, 28-h forced desynchrony (FD) protocol (sleep:wake period1:2) to study individual differences in the rate of change in neurobehavioral performance with increasing homeostatic sleep pressure. Neurobehavioral performance was assessed with a psychomotor vigilance task and a serial addition subtraction task. A significant performance decline on both tasks was revealed within as short as 17h of wakefulness. The rates of decline of individual performance trajectories were, however, not different from the group average rate. This suggests that individuals are not differentially vulnerable to the detrimental impact of increasing homeostatic sleep pressure. copyright
KW - Forced desynchrony
KW - Homeostatic sleep pressure
KW - Interindividual differences
KW - Neurobehavioural performance
KW - Vulnerability
UR - http://www.scopus.com/inward/record.url?scp=77954837030&partnerID=8YFLogxK
U2 - 10.3109/07420528.2010.488958
DO - 10.3109/07420528.2010.488958
M3 - Article
C2 - 20636206
AN - SCOPUS:77954837030
SN - 0742-0528
VL - 27
SP - 922
EP - 933
JO - Chronobiology International
JF - Chronobiology International
IS - 5
ER -