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.
Relationships between the area under the curve [×103 (µM cm) s] of the Oxy-Hb response and cognitive performance speed (answers/s) during the Stroop test (a) and word-reading test (b) across the data consolidated in nine young (white circles) and nine elderly subjects (black circles)
