Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

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.

View full-text article in PMC

. 2021 Aug 31;15:541314. doi: 10.3389/fnhum.2021.541314

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2021 Lin, Zhou, Naya, Gardner and Sun.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

PMC Copyright notice

The typical BOLD time course for the contrast adaptation experiment (data from one representative selected voxel). (A) The BOLD time course for a single run. The green vertical line indicates the appearance of adaptation stimulus. All other colored vertical lines indicate the beginning of each trial, and the colors of vertical lines indicate the contrast level and duration of test stimuli. The time course displays positive and negative deflections following the contrast level increments and decrements in most trials. A low-pass filter (low-pass frequency = 0.2 Hz) was applied to the original time course for a clearer demonstration. (B) The averaged BOLD responses under each condition for all trials within three runs. The BOLD responses increased or decreased immediately after the contrast level increments or decrements, respectively. The colors of BOLD responses indicate the contrast level and duration of test stimuli.