Saccadic eye movements, even in darkness, generate event-related potentials recorded in medial sputum and medial temporal cortex.
Saccadic eye movements (saccades) in primates organize the visual information about the environment into a pulsatile course. Recent studies from our laboratory have found substantial single unit activity, of extra-retinal origin, in medial temporal and inferotemporal cortex with each saccade (even in the dark). In the current experiment we studied event-related potentials to spontaneous saccades from electrodes in medial temporal cortex as well as medial septum. Significant event-related potentials were recorded in both regions (again even in the dark). These data suggest that higher-level processing itself may synchronize with saccades.
Sobotka
S
S
Department of Neurobiology and Anatomy, University of Rochester School of Medicine, NY 14642, USA.
Ringo
J L
JL
D000818:Animals; D003624:Darkness; D005071:Evoked Potentials; D007839:Functional Laterality; D008027:Light; D008253:Macaca mulatta; D008254:Macaca nemestrina; D009799:Ocular Physiological Phenomena; D012438:Saccades; D012688:Septum Pellucidum / Q000502:physiology*; D013702:Temporal Lobe / Q000502:physiology*