Effects of sleep deprivation on event-related fields and alpha activity during rhythmic force production.
The influence of sleep deprivation (SD) on event-related fields and the distribution of power over the scalp of MEG imaged brain activity was studied during acoustically paced rhythmic force production. At the behavioral level, SD resulted in a reduction of the lag (negative asynchrony) between produced forces and acoustic stimuli at higher movement tempos. Principal component analysis of the accompanying MEG activity showed that auditory- and motor-evoked fields were attenuated after SD and revealed an anterior shift of power towards more frontal channels. These results were interpreted in terms of a change of central processing of afferent sensory input due to SD.
Boonstra
T W
TW
Faculty of Human Movement Sciences, Institute for Fundamental and Clinical Human Movement Sciences, Vrije Universiteit, Van der Boechorststraat 9, 1081 BT Amsterdam, The Netherlands. t.boonstra@fbw.vu.nl
Daffertshofer
A
A
Beek
P J
PJ
D000161:Acoustic Stimulation; D000328:Adult; D000513:Alpha Rhythm; D001921:Brain / Q000502:physiology*; D005071:Evoked Potentials / Q000502:physiology*; D005072:Evoked Potentials, Auditory / Q000502:physiology; D006801:Humans; D007537:Isometric Contraction / Q000502:physiology*; D015225:Magnetoencephalography; D008297:Male; D008875:Middle Aged; D009043:Motor Activity / Q000502:physiology; D010507:Periodicity; D025341:Principal Component Analysis; D012890:Sleep / Q000502:physiology*; D012892:Sleep Deprivation / Q000503:physiopathology*