Alteration of the perceived path of a non-pursued target during smooth pursuit: analysis by a neural network model.
During pursuit of a circularly moving target, the perceived movement of a second circularly moving target is altered. The perceived movement of the non-pursued target is different from both its real movement path and its retinal path. In the present paper this phenomenon is studied using a physiologically based neural network model. Simulation results were compared to psychophysical findings in human subjects. Model simulations enabled us to suggest an explanation for this phenomenon in terms of underlying physiological mechanisms and to estimate the contribution of the efferent eye-movement signal to the perceptual process.
Furman
Moran
M
Department of Biomedical Engineering, Technion, Israel Institute of Technology, Haifa 32000, Israel.
Gur
Moshe
M
D000328:Adult; D000344:Afferent Pathways / Q000502:physiology; D003198:Computer Simulation; D004525:Efferent Pathways / Q000502:physiology; D005260:Female; D005403:Fixation, Ocular / Q000502:physiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D008959:Models, Neurological; D009039:Motion Perception / Q000502:physiology*; D016571:Neural Networks, Computer; D010775:Photic Stimulation / Q000379:methods; D011601:Psychophysics; D011698:Pursuit, Smooth / Q000502:physiology*; D012160:Retina / Q000502:physiology; D012399:Rotation; D014793:Visual Cortex / Q000502:physiology