[The topography of the afferent and efferent flows in the mechanisms of auditory selective attention].
Auditory evoked potentials (AEPs) were recorded in 10 adult healthy subjects under conditions of simple rhythmical stimulation and during solving selective attention task. Middle- (10-60 ms) and long-latency (up to 400 ms) AEPs were analysed by AEP mapping and by evaluation of their spatio-temporal characteristics. it is suggested that interaction between the parietal, left temporal and left frontal cortical areas exerts efferent influence to brainstem structures over a period of 15-35 ms. Amplitudes of P90 and P250 components were reduced during selective attention task. The late P350 component increases, mainly, in the central and frontal cortical areas.
Shostak
V I
VI
Lytaev
S A
SA
Golubeva
L V
LV
D000161:Acoustic Stimulation; D000328:Adult; D000344:Afferent Pathways / Q000502:physiology; D001288:Attention / Q000502:physiology*; D001307:Auditory Perception / Q000502:physiology*; D001931:Brain Mapping; D001933:Brain Stem / Q000502:physiology; D002540:Cerebral Cortex / Q000502:physiology; D004525:Efferent Pathways / Q000502:physiology; D005072:Evoked Potentials, Auditory / Q000502:physiology; D006801:Humans; D008297:Male; D011930:Reaction Time / Q000502:physiology; D013788:Thalamus / Q000502:physiology; D013997:Time Factors
Topografiia afferentnykh i éfferentnykh potokov v mekhanizmakh slukhovogo selektivnogo vnimaniia.