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- W4256352203 abstract "The binocular coordination of eye movements in a three-dimensional environment involves a combination of saccade and vergence movements. To maintain binocular accuracy and control in the face of sensory and motor changes (that occur with e.g. normal aging, surgery, corrective lenses), the oculomotor system must adapt in response to manifest visual errors. This may be achieved through a combination of binocular and monocular mechanisms, including the recalibration of saccade and vergence amplitudes in response to different visual errors induced in each eye (Maiello, Harrison, & Bex, 2016). This work has used a double-step paradigm to recalibrate eye movements in response to visual errors produced by dichoptic target steps (e.g., leftward in the left eye and rightward in the right eye). Here, we evaluated the immediate perceptual effects of this adaptation. Experiment 1 measured localization errors following adaptation, by comparing the apparent locations of pre- and post- saccadic probes. Consistent with previous work showing localization errors following saccadic adaptation, our results demonstrated that adaptation to a dichoptic step produces different localization errors in the two eyes. Furthermore, in Experiment 2, this effect was reduced for a vergence shift in the absence of a saccade, indicating that saccade programming is responsible for a large component of this illusory shift. Experiment 3 measured post-saccadic stereopsis thresholds and indicated that, unlike localization judgments, adaptation did not influence stereoacuity. Together, these results demonstrate novel dichoptic visual errors following oculomotor adaptation, and point to monocular and binocular mechanisms involved in the maintenance of binocular coordination." @default.
- W4256352203 created "2022-05-12" @default.
- W4256352203 creator A5003910525 @default.
- W4256352203 creator A5030495602 @default.
- W4256352203 date "2020-03-13" @default.
- W4256352203 modified "2023-10-16" @default.
- W4256352203 title "Perceptual effects of unequal saccadic adaptation produced by a dichoptic step" @default.
- W4256352203 doi "https://doi.org/10.31234/osf.io/wjv9q" @default.
- W4256352203 hasPublicationYear "2020" @default.
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