Click train elicited local gamma synchrony: differing performance and pharmacological responsivity of primary auditory and prefrontal cortices.

Auditory neural networks in the brain naturally entrain to rhythmic stimuli. Such synchronization is an accessible index of local network performance as captured by EEG. Across species, click trains delivered ∼ 40 Hz show strong entrainment with primary auditory cortex (Actx) being a principal source.