Serial attentional resource allocation during parallel feature value tracking.

ABSTRACT: The visual system has evolved the ability to track features like color and orientation in parallel. This property aligns with the specialization of processing these feature dimensions in the visual cortex. But what if we ask to track changing feature-values within the same feature dimension? Parallel tracking would then have to share the same cortical representation, which would set strong limitations on tracking performance. We address this question by measuring the precision of color representations when human observers track the color of two superimposed dot clouds that simultaneously change color along independent trajectories in color-space. We find that tracking precision is highly imbalanced between streams and that tracking precision changes over time by alternating between streams

SUBMITTER: Merkel C 

PROVIDER: S-EPMC10791127 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature