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.
Performance on the high-range (2688 vs 4808 Hz) and low-range (306 vs 613 Hz) frequency-discrimination tasks preoperatively and after the second (bilateral) ST cortex lesion for monkeys M, T, and B. The top and bottom dotted lines represent criterial and chance levels of performance, respectively.
