Perisaccadic mislocalization orthogonal
to saccade direction.
Neuron 41:293-300
Animation of perisaccadic mislocalization
for different amplitudes
20 deg saccade
24 deg saccade
Model for remapping of visual position space
Remapping and Mislocalization. The red dot represents the reafferent
position signal at the saccade target and the green dots represent the position
of the flashed object. For a rightward saccade we assume that positions in
the left are remapped earlier than positions in the right part of the visual
field. The background coloring shows the status of visual field position representations:
positions in the white area are already remapped to the position after the
saccade, positions in the shaded area are currently in the process of remapping
and positions to the right have not yet entered the remapping process. A
The position where the information of the flashed object is coming in (green)
has already undergone remapping. The signal encoding the object position
is stronger than the reafferent signal encoding the target position. B
Objects flashed at positions in the right part of the visual field, in
the periphery of the fixation point, are represented in an area that is in
the process of remapping. As some neurons already encode for the new (after
the saccade) position whereas others still encode for the old position, there
are two representations for the flashed object. These two signals are individually
weaker than the reafferent signal at the target position, therefore, the
target signal will dominate the perception of the object position.
