Martin Rolfs, Humboldt University Berlin
April 04 2016, 11h Salle de réunion du LPP, H432, 4ème étage, Centre Biomédical des Saints Pères 45 rue des Sts Pères, 75006 Paris
Attention in active vision
We take in the visual world by moving our eyes, heads, and bodies. While this crucial recognition is at the heart of today’s research on active vision, we only begin to understand the consequences of our actions for perception and cognition. In this talk, I will present a series of studies investigating how the preparation and execution of saccadic eye movements affects the selective allocation of visual attention for functions as fundamental as visual perception and memory. First, saccade preparation drives both objective visual performance and subjective experience of visual salience at the target of saccades. Second, visual attention supports perceptual continuity across saccades by facilitating perception predictively at those retinal locations that become relevant after the eye movement. Third, saccadic eye movements strongly affect what is encoded and maintained in visual short-term memory. These findings reveal a tight coupling between eye movement preparation and the visual system’s priorities for perception and memory. They highlight the key role that eye movements play in shaping what we see and what we ignore, what we remember and what we forget.