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Distraction task rather than focal attention modulates gamma activity associated with auditory steady-state responses (ASSRs)

Conclusions
The phase-locked measures of 40Hz ASSR are attenuated when attention to the stimulation is low, i.e. the subject is effortfully focused on the competitive “distraction” task performance. Lower arousal level increases the total intensity of 40Hz ASSRs.

from Clinical Neurophysiology

Distraction task rather than focal attention modulates gamma activity associated with auditory steady-state responses (ASSRs)

Conclusions
The phase-locked measures of 40Hz ASSR are attenuated when attention to the stimulation is low, i.e. the subject is effortfully focused on the competitive “distraction” task performance. Lower arousal level increases the total intensity of 40Hz ASSRs.

from Clinical Neurophysiology