Topic: visual sensitivity

The adult human brain shows remarkable plasticity following perceptual learning, resulting in improved visual sensitivity. However, such improvements in visual perception commonly require extensive practice and hours of training. Therefore, an ongoing challenge has been to improve the efficiency of such prolonged repetition-based learning. Here we aimed to uncover whether improving the efficiency of repetition-based learning with brief memory reactivations engages distinct neural mechanisms. To address this question, human participants encoded a visual discrimination task. Then, three sessions

Behavioural responses to identical stimuli differ depending on the context, history and goals of the individual. One way to dynamically modulate sensorimotor transformations is to emphasise or de-emphasise particular spatial locations, a process called selective spatial attention. Spatial processing and goal-directed behaviour are thought to be critically dependent on the superior colliculus (SC). Evidence for this comes from local single-unit recordings that reveal a spatial organisation of visual and behavioural representations. However, the broader population dynamics and mechanisms orchest