Expectations about motion direction affect perception and anticipatory smooth pursuit differently

Wu, Xiuyun; Rothwell, Austin; Spering, Miriam; Montagnini, Anna

doi:10.1152/jn.00630.2020

Cited by 10 publications

(7 citation statements)

References 70 publications

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“…In this case, the faster prior trial leads also to a significant increase in eye velocity in subsequent trials. Similar results were recently presented by Wu, Rothwell, Spering and Montagnini (2021) . In their work, they demonstrated that anticipatory pursuit follows the expected direction of a target, whereas perceptual results followed the opposite direction.…”

Section: Discussionsupporting

confidence: 92%

Retinal error signals and fluctuations in eye velocity influence oculomotor behavior in subsequent trials

Goettker

2021

Journal of Vision

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The oculomotor system makes use of an integration of previous stimulus velocities (the prior) and current sensory inputs to adjust initial eye speeds. The present study extended this research by investigating the roles of different retinal or extra-retinal signals for this process. To test for this, participants viewed movement sequences that all ended with the same test trial. Earlier in the sequence, the prior was manipulated by presenting targets that either had different velocities, different starting positions, or target movements designed to elicit differential oculomotor behavior (tracked with or without additional corrective saccades). Additionally, these prior targets could vary in terms of contrast to manipulate reliability. When the velocity of prior trials differed from test trials, the reliability-weighted integration of prior information was replicated. When the prior trials differed in starting position, significant effects on subsequent oculomotor behavior were only observed for the reliable target. Although there were also differences in eye velocity across the different manipulations, they could not explain the observed reliability-weighted integration. When comparing the same physical prior trials but tracked with additional corrective saccades, the eye velocity in the test trial also differed systematically (slower for forward saccades, and faster for backward saccades). The direction of the observed effect contradicts the expectations based on perceived speed and eye velocity, but can be predicted by a combination of retinal velocity and position error signals. Together, these results suggest that general fluctuations in eye velocity as well as retinal error signals are related to oculomotor behavior in subsequent trials.

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Section: Discussionsupporting

confidence: 92%

Retinal error signals and fluctuations in eye velocity influence oculomotor behavior in subsequent trials

Goettker

2021

Journal of Vision

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“…On the other hand, the fact that participants were biased to report the direction of head rotation could also be explained by a higher-level response bias to answer in line with head rotation when stimulus uncertainty is high. This is supported by other findings of correlated heading and object motion biases ( Dyde and Harris 2008 , Wu et al. 2021 , Xing and Saunders 2022 ).…”

Section: Discussionsupporting

confidence: 89%

“…In other related work, Wu et al. (2021) used context trials of random-dot kinematograms (RDK) travelling in a certain direction within a trial block to build an expectation of direction.…”

Section: Discussionmentioning

confidence: 99%

“…These prior findings could explain the bias in the current experiment and the subsequent differences in threshold for congruent and incongruent conditions. Further, Wu et al. (2021) showed by manipulating the coherence of a motion signal in an RDK that the repulsive effect was not due to low-level adaptation but rather to a perceptual bias.…”

Section: Discussionmentioning

confidence: 99%

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Incongruent active head rotations increase visual motion detection thresholds

Pickard,

Davidson,

Kim

et al. 2024

Neuroscience of Consciousness

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Attributing a visual motion signal to its correct source—be that external object motion, self-motion, or some combination of both—seems effortless, and yet often involves disentangling a complex web of motion signals. Existing literature focuses on either translational motion (heading) or eye movements, leaving much to be learnt about the influence of a wider range of self-motions, such as active head rotations, on visual motion perception. This study investigated how active head rotations affect visual motion detection thresholds, comparing conditions where visual motion and head-turn direction were either congruent or incongruent. Participants judged the direction of a visual motion stimulus while rotating their head or remaining stationary, using a fixation-locked Virtual Reality display with integrated head-movement recordings. Thresholds to perceive visual motion were higher in both active-head rotation conditions compared to stationary, though no differences were found between congruent or incongruent conditions. Participants also showed a significant bias to report seeing visual motion travelling in the same direction as the head rotation. Together, these results demonstrate active head rotations increase visual motion perceptual thresholds, particularly in cases of incongruent visual and active vestibular stimulation.

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“…Although a recent study elegantly demonstrated this difference for single behavioral trials, 18 similar claims have been also made for serial dependence. 19,20 When repeatedly seeing the same movement sequence, perceptual decisions tend to be based on adaptation and integration of information across a longer time period. In contrast, oculomotor behavior only uses very recent information as priming to update sequential oculomotor responses and to allow better tracking responses.…”

Section: Discussionmentioning

confidence: 99%