P. Apkarian

Visual Evoked Potentials: Isolation of Cortical Sub-Populations Narrowly Tuned to Spatial Frequency

Ken Nakayama, Emanuel Donchin, Christopher W. Tyler, 2021, Neurophysiology and Psychophysiology.

High temporal frequency visual evoked potentials to luminance and pattern stimulation in the peripheral retina

Ken Nakayama, P. Apkarian, K. Nakayama, 1980 .

Multiple spatial-frequency tuning of electrical responses from human visual cortex

P. Apkarian, K. Nakayama, C. Tyler, 1978, Experimental Brain Research.