Journalartikel
Autorenliste: Luna, R; Serrano-Pedraza, I; Gegenfurtner, KR; Schütz, AC; Souto, D
Jahr der Veröffentlichung: 2021
Seiten: 58-73
Zeitschrift: Vision Research
Bandnummer: 184
ISSN: 0042-6989
eISSN: 1878-5646
Open Access Status: Bronze
DOI Link: https://doi.org/10.1016/j.visres.2021.03.003
Verlag: Elsevier
Abstract:
During smooth pursuit eye movements, the visual system is faced with the task of telling apart reafferent retinal motion from motion in the world. While an efference copy signal can be used to predict the amount of reafference to subtract from the image, an image-based adaptive mechanism can ensure the continued accuracy of this computation. Indeed, repeatedly exposing observers to background motion with a fixed direction relative to that of the target that is pursued leads to a shift in their point of subjective stationarity (PSS). We asked whether the effect of exposure reflects adaptation to motion contingent on pursuit direction, recalibration of a reference signal or both. A recalibration account predicts a shift in reference signal (i.e. predicted reafference), resulting in a shift of PSS, but no change in sensitivity. Results show that both directional judgements and confidence judgements about them favor a recalibration account, whereby there is an adaptive shift in the reference signal caused by the prevailing retinal motion during pursuit. We also found that the recalibration effect is specific to the exposed visual hemifield.
Zitierstile
Harvard-Zitierstil: Luna, R., Serrano-Pedraza, I., Gegenfurtner, K., Schütz, A. and Souto, D. (2021) Achieving visual stability during smooth pursuit eye movements: Directional and confidence judgements favor a recalibration model, Vision Research, 184, pp. 58-73. https://doi.org/10.1016/j.visres.2021.03.003
APA-Zitierstil: Luna, R., Serrano-Pedraza, I., Gegenfurtner, K., Schütz, A., & Souto, D. (2021). Achieving visual stability during smooth pursuit eye movements: Directional and confidence judgements favor a recalibration model. Vision Research. 184, 58-73. https://doi.org/10.1016/j.visres.2021.03.003