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Spatial and temporal adaptation of predictive saccades based on motion inference

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Title: Spatial and temporal adaptation of predictive saccades based on motion inference
Authors: Itoh, Takeshi D. Browse this author
Takeya, Ryuji Browse this author
Tanaka, Masaki Browse this author →KAKEN DB
Issue Date: 24-Mar-2020
Publisher: Nature Publishing Group
Journal Title: Scientific reports
Volume: 10
Issue: 1
Start Page: 5280
Publisher DOI: 10.1038/s41598-020-62211-8
Abstract: Moving objects are often occluded behind larger, stationary objects, but we can easily predict when and where they reappear. Here, we show that the prediction of object reappearance is subject to adaptive learning. When monkeys generated predictive saccades to the location of target reappearance, systematic changes in the location or timing of target reappearance independently altered the endpoint or latency of the saccades. Furthermore, spatial adaptation of predictive saccades did not alter visually triggered reactive saccades, whereas adaptation of reactive saccades altered the metrics of predictive saccades. Our results suggest that the extrapolation of motion trajectory may be subject to spatial and temporal recalibration mechanisms located upstream from the site of reactive saccade adaptation. Repetitive exposure of visual error for saccades induces qualitatively different adaptation, which might be attributable to different regions in the cerebellum that regulate learning of trajectory prediction and saccades.
Type: article
Appears in Collections:医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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