Waveforms of transient gamma band responses for the three age groups, eight stimulus types and left and right hemispheres.

<p>(Time zero refers to the stimulus onset.) <b>A</b>: Responses to no-gap stimuli as observed in the left hemisphere. The bottom trace shows the response waveform averaged across the four stimuli with different duration. <b>B</b>: Right hemispheric responses to no-gap stimuli. <b>C–D</b>: Responses to gap-stimuli accordingly.