Alpha-band functional connectivity during cued versus implicit modality-specific anticipatory attention: EEG-source coherence analysis.

Autor: Talalay IV; Institute of Developmental Physiology, Laboratory of Neurophysiology of Cognitive Processes, Moscow, Russia., Kurgansky AV; Institute of Developmental Physiology, Laboratory of Neurophysiology of Cognitive Processes, Moscow, Russia., Machinskaya RI; Institute of Developmental Physiology, Laboratory of Neurophysiology of Cognitive Processes, Moscow, Russia.
Jazyk: angličtina
Zdroj: Psychophysiology [Psychophysiology] 2018 Dec; Vol. 55 (12), pp. e13269. Date of Electronic Publication: 2018 Jul 16.
DOI: 10.1111/psyp.13269
Abstrakt: The anticipation of future events based on a background experience is one of the main components of any goal-directed behavior. Anticipatory attention can be either voluntary (explicit) or involuntary (implicit). We presumed that these two types of anticipatory attention differed in terms of cortical functional organization. We examined this assumption with an experimental model consisting of three experimental sessions (cued attention, implicit learning, and baseline) that were equal in terms of stimuli, motor responses, and cognitive task. Participants were asked to discriminate the temporal order of stimuli within a pair presented in either the visual or auditory sensory modality. Prestimulus functional connectivity was assessed via alpha-band coherence computed in the source space for preselected regions of interests. Functional links between the cortices of the frontoparietal control system increased during the cued attention condition and did not increase during the implicit anticipation condition. The buildup of implicit anticipation was accompanied by the strengthening of functional links between the intraparietal, ventral premotor, and presupplementary motor areas. It was discovered that both cued and implicit types of anticipation were underlain by functional modality-specific cortical links.
(© 2018 Society for Psychophysiological Research.)
Databáze: MEDLINE
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