Transsaccadic memory for position and orientation of saccade source and target.
Participants made a saccade from one biological-motion figure to another and had to detect saccadecontingent changes in either the walker to which the eyes were sent (the target) or the walker that served as launch site (the source). Intrasaccadic displacements in both source and target were relatively hard to detect, whereas changes in the walkers' depth orientation were readily noticed, indicating that previous findings on within-object saccades generalize to between-objects saccades. Contrary to predictions derived from theories that assign a privileged status to the saccade target, transsaccadic memory for the target's position and orientation was not more accurate than memory for the source. Displacements or rotations of one object toward the other object were more detectable than the same changes away from each other, suggesting that relational coding plays a prominent role in the integration of information across saccades.
Verfaillie
K
K
Department of Psychology, University of Leuven, Belgium. Karl.Verfaillie@psy.kuleuven.ac.be
De Graef
P
P
D000328:Adult; D005260:Female; D005795:Generalization, Stimulus; D006801:Humans; D008297:Male; D008568:Memory; D008960:Models, Psychological; D009039:Motion Perception; D009949:Orientation; D010364:Pattern Recognition, Visual; D012032:Refractory Period, Electrophysiological; D012438:Saccades; D014792:Visual Acuity