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  Overt oculomotor behavior reveals covert temporal predictions

Tavano, A., & Kotz, S. A. (2022). Overt oculomotor behavior reveals covert temporal predictions. Frontiers in Human Neuroscience, 16: 758138. doi:10.3389/fnhum.2022.758138.

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 Creators:
Tavano, Alessandro1, Author
Kotz, Sonja A.2, 3, Author              
Affiliations:
1Department of Neuroscience, Max Planck Institute for Empirical Aesthetics, Frankfurt, Germany, ou_persistent22              
2Department of Neuropsychology and Psychopharmacology, Maastricht University, the Netherlands, ou_persistent22              
3Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              

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Free keywords: Predictions; Temporal expectations; Eye movements; Parkinson's disease; Hazard rate
 Abstract: Our eyes move in response to stimulus statistics, reacting to surprising events, and adapting to predictable ones. Cortical and subcortical pathways contribute to generating context-specific eye-movement dynamics, and oculomotor dysfunction is recognized as one the early clinical markers of Parkinson's disease (PD). We asked if covert computations of environmental statistics generating temporal expectations for a potential target are registered by eye movements, and if so, assuming that temporal expectations rely on motor system efficiency, whether they are impaired in PD. We used a repeating tone sequence, which generates a hazard rate distribution of target probability, and analyzed the distribution of blinks when participants were waiting for the target, but the target did not appear. Results show that, although PD participants tend to produce fewer and less temporally organized blink events relative to healthy controls, in both groups blinks became more suppressed with increasing target probability, leading to a hazard rate of oculomotor inhibition effects. The covert generation of temporal predictions may reflect a key feature of cognitive resilience in Parkinson's Disease.

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Language(s): eng - English
 Dates: 2021-08-132021-01-142022-02-11
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.3389/fnhum.2022.758138
Other: eCollection 2022
PMID: 35221954
PMC: PMC8874352
 Degree: -

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Title: Frontiers in Human Neuroscience
  Abbreviation : Front Hum Neurosci
Source Genre: Journal
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Publ. Info: Lausanne, Switzerland : Frontiers Research Foundation
Pages: - Volume / Issue: 16 Sequence Number: 758138 Start / End Page: - Identifier: ISSN: 1662-5161
CoNE: https://pure.mpg.de/cone/journals/resource/1662-5161