JNP Micro Podcasts: Saccadic Suppression of Color and Luminance

In this JNP MicroPodcast, Yuan Zhang highlights the recently published research titled "The Execution of Saccadic Eye Movements Suppresses Visual Processing of Both Color and Luminance in the Early Visual Cortex of Humans." The study reveals how saccadic eye movements—rapid shifts in eye position—suppress the processing of both luminance and chromatic stimuli in the early visual cortex. Yuan breaks down how the research uses a contrast response model to show that saccades reduce response gain, rather than altering contrast gain, pointing to a multiplicative mechanism that affects both the parvocellular and magnocellular pathways. Tune in for a concise overview of these intriguing findings and their implications for visual processing.

 

The execution of saccadic eye movements suppresses visual processing of both color and luminance in the early visual cortex of humans

Yuan Zhang, Matteo Valsecchi, Karl R. Gegenfurtner, and Jing Chen

Journal of Neurophysiology 2024 131:6, 1156-1167