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.
Diagrammatic representation of PPI. (a) Presentation of a strong stimulus, generally auditory or tactile, induces the startle response (R). (b) Exposure of the individual to a weaker prepulse less than 150 ms before exposure to the stronger pulse results in a reduced startle response (r).
