Topic: visual change detection

Saccades enable primates to sample their visual environments at high resolution. Yet, even before the saccade occurs, visual discrimination sensitivity increases at the saccade target location. Does this benefit occur in all scenarios? To address this question, we designed a dual-task paradigm involving visual change detection. On each trial, participants (n=10) prepared and executed a saccade to one (cued) of four grating locations while concurrently localizing a change in grating orientation that immediately preceded the saccade. Surprisingly, we found no improvement in orientation change de

Stimulus novelty modifies perception and promotes exploration and learning. What are the neural circuit mechanisms that underlie the effects of novelty? To address this question, we trained mice on a visual change detection task, while we performed two-photon calcium imaging of neural activity from excitatory and inhibitory (VIP and SST) neuron classes across multiple layers of the visual cortex (areas V1 and LM; 82 mice, 551 sessions, 34,619 neurons). The behavioral task required detecting image changes that occurred amid repeated image presentations. Additionally, flashed images were periodi