AI Article Synopsis
- Color vision involves multiple processing stages, starting with broadly tuned opponent channels that compare signals from different cone types.
- The chromatic visual evoked potential (crVEP) shows selective processing for primary color directions, but lacks evidence for more complex higher-order color mechanisms.
- The study found that both basic and intermediate color mechanisms contribute to the crVEP, highlighting a more nuanced understanding of color processing.
Article Abstract
Results from psychophysics and single-unit recordings suggest that color vision comprises multiple stages of processing. Postreceptoral channels appear to consist of both a stage of broadly tuned opponent channels that compare cone signals and a subsequent stage, which includes cells tuned to many different directions in color space. The chromatic visual evoked potential (crVEP) has demonstrated chromatic processing selective for cardinal axes of color space. However, crVEP evidence for higher-order color mechanisms is lacking. The present study aimed to assess the contribution of lower- and higher-order color mechanisms to the crVEP by using chromatic contrast adaptation. The results reveal the presence of mechanisms tuned to intermediate directions in color space in addition to those tuned to the fundamental cardinal axes.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/JOSAA.29.00A152 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!