Article abstract
Nature Neuroscience 10, 903 - 907 (2007)
Published online: 24 June 2007 | doi:10.1038/nn1917
Predictive remapping of visual features precedes saccadic eye movements
Abstract
The frequent occurrence of saccadic eye movements raises the question of how information is combined across separate glances into a stable, continuous percept. Here I show that visual form processing is altered at both the current fixation position and the location of the saccadic target before the saccade. When human observers prepared to follow a displacement of the stimulus with the eyes, visual form adaptation was transferred from current fixation to the future gaze position. This transfer of adaptation also influenced the perception of test stimuli shown at an intermediate position between fixation and saccadic target. Additionally, I found a presaccadic transfer of adaptation when observers prepared to move their eyes toward a stationary adapting stimulus in peripheral vision. The remapping of visual processing, demonstrated here with form adaptation, may help to explain our impression of a smooth transition, with no temporal delay, of visual perception across glances.
- Center for Mind/Brain Studies and Department of Cognitive Science, University of Trento, Corso Bettini 31, Rovereto 38068, Italy.
- Department of Psychology, Oxford Brookes University, Gipsy Lane, Oxford OX3 0BP, UK.
Correspondence to: David Melcher1,2 e-mail: david.melcher@form.unitn.it
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