Department of Psychology and Centre for Vision
Retaining, updating, and integrating visual
representations across saccades.
The neural and computational mechanisms for
'spatial updating' of motor plans during eye
movements are fairly well understood, but less
is known about the mechanisms for perceptual
updating across eye movements. This talk will
begin with an introduction to the parietal cortex
mechanisms for spatial updating of saccade and
reach targets, calling on data from psychophysical,
fMRI, and neuropsychological experiments. We
will then consider the capacity of the visual
system for remembering and integrating spatial
and feature information across eye movements.
Finally, we will consider how the latter process
is disrupted by TMS stimulation of the parietal
cortex, suggesting the possibility of shared
neural mechanisms for spatial updating in motor
control and perception.