Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Representation of the auditory and visual stimuli over time. (A) Sound envelope of the auditory stimulus modulated from maximum to minimum volume. (B) Five frames of the visual stimulus depicting the modulation from maximum to minimum luminescence. Each stimulus lasted 416.66 ms and was repeated 84 times to yield a 35-s sequence with a steady beat at 2.4 Hz. The pitch or the color was changed after every 35-s sequence to maintain participants’ attention.
