Time-varying functional connectivity for understanding the neural basis of behavioral microsleeps.
Episodes of complete failure to respond during attentive tasks--lapses of responsiveness ('lapses')--accompanied by behavioral signs of sleep such as slow-eye-closure are known as behavioral microsleeps (BMs). The occurrence of BMs can have serious/fatal consequences, particularly in the transport sectors, and therefore further investigations on neurophysiological correlates of BMs are highly desirable. In this paper we propose a combination of High Resolution EEG techniques and an advanced method for time-varying functional connectivity estimation for reconstructing the temporal evolution of causal relations between cortical regions of BMs occurring during a visuomotor tracking task. The preliminary results highlight connectivity patterns involving parietal and fronto-parietal areas both preceding and following the onset of a BM.
Department of Computer, Control, and Management Engineering, University of Rome "Sapienza", Rome, Italy.
J
J
Toppi
L
L
Astolfi
G R
GR
Poudel
F
F
Babiloni
L
L
Macchiusi
D
D
Mattia
S
S
Salinari
R D
RD
Jones
D000328:Adult; D000465:Algorithms; D001288:Attention / Q000502:physiology*; D001931:Brain Mapping / Q000379:methods*; D063132:Connectome / Q000379:methods; D004569:Electroencephalography / Q000379:methods*; D005625:Frontal Lobe / Q000502:physiology*; D006801:Humans; D008297:Male; D010296:Parietal Lobe / Q000502:physiology*; D012894:Sleep Stages / Q000502:physiology*; D055815:Young Adult