Sequential visual stimuli increase high frequency power in the visual cortex.

Today, flickering full-field visual stimulation is used to increase neuronal oscillations for a variety of research or therapeutic purposes. We propose spatially organized sequential visual flickering stimulation as a newer tool to circumvent the intrinsic low-pass filter nature of the vertebrate visual system, in order to increase the power of high frequency oscillations in the visual system. We show that spatially organized visual flickering can increase power in high frequencies (100 to 190 Hz) in the visual cortex of mice. Consequently, spatially organized sequential sensory stimulation should be regarded as a putative new way leading to power increases in high frequency domains.