title: Eye position effects on the remapped memory trace of visual motion in cortical area MST.
abstract: After a saccade, most MST neurons respond to moving visual stimuli that had existed in their post-saccadic receptive fields and turned off before the saccade ("trans-saccadic memory remapping"). Neuronal responses in higher visual processing areas are known to be modulated in relation to gaze angle to represent image location in spatiotopic coordinates. In the present study, we investigated the eye position effects after saccades and found that the gaze angle modulated the visual sensitivity of MST neurons after saccades both to the actually existing visual stimuli and to the visual memory traces remapped by the saccades. We suggest that two mechanisms, trans-saccadic memory remapping and gaze modulation, work cooperatively in individual MST neurons to represent a continuous visual world.
authors.affiliation: Department of Integrative Brain Science, Graduate School of Medicine, Kyoto University. Kyoto 606-8501, Japan.|Department of Physiology, Hokkaido University School of Medicine. Sapporo 060-8638, Japan.
authors.forename: Naoko
authors.initials: N
authors.lastname: Inaba
authors.affiliation: Department of Integrative Brain Science, Graduate School of Medicine, Kyoto University. Kyoto 606-8501, Japan.
authors.forename: Kenji
authors.initials: K
authors.lastname: Kawano
mesh_terms: D000818:Animals; D008253:Macaca mulatta / Q000502:physiology; D008297:Male; D008568:Memory / Q000502:physiology; D009038:Motion; D010775:Photic Stimulation; D055351:Retinal Neurons / Q000502:physiology; D012438:Saccades / Q000502:physiology*; D014793:Visual Cortex / Q000502:physiology; D014796:Visual Perception / Q000502:physiology*