26 Aug2020

Saliency and priority modulation in a pop-out paradigm: Pupil size and microsaccades

Saliency and priority modulation in a pop-out paradigm: Pupil size and microsaccades

Chin-An Wang, Jeff Huang, Donald C.Brien, Douglas P. Munoz

We investigated saliency and priority modulation in multiple components of the orienting response in a pop-out paradigm. Larger pupil responses were produced in the pop-out condition than in other control conditions after stimulus presentation. Microsaccade direction was biased toward the pop-out item when it was the subsequent saccadic target. The midbrain superior colliculus is coordinating these behaviors because of its central role in orienting behavior including pupil size and microsaccades.

Published in Biological Psychology

Here is the link: https://www.sciencedirect.com/science/article/pii/S0301051120300612