Temporal orienting in Parkinson's disease.
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| Title: | Temporal orienting in Parkinson's disease. |
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| Authors: | Zokaei, Nahid (AUTHOR), Gillebert, Celine R. (AUTHOR), Chauvin, Joshua J. (AUTHOR), Gresch, Daniela (AUTHOR), Board, Alexander G. (AUTHOR), Rolinski, Michal (AUTHOR), Hu, Michele T. (AUTHOR), Nobre, Anna Christina (AUTHOR) |
| Source: | European Journal of Neuroscience. Apr2021, Vol. 53 Issue 8, p2713-2725. 13p. 1 Chart, 3 Graphs. |
| Subjects: | Parkinson's disease, Differentiation (Cognition), Theatrical scenery |
| Abstract: | Temporal orienting of attention can affect multiple stages of processing to guide adaptive behaviour. We tested whether temporal expectation in different task contexts is compromised in individuals with Parkinson's disease (PD). In Experiment 1 two temporal‐orienting tasks were used: a speeded task emphasizing motor preparation and a non‐speeded task emphasizing perceptual discrimination using rapid serial visual presentation. In both tasks, auditory cues indicated the likelihood of a target appearing after a short or long interval. In the speeded‐response task, participants used the cues to anticipate an easily detectable target stimulus. In the non‐speeded perceptual‐discrimination task, participants used the cues to help discriminate a target letter embedded in a stream of letters. Relative to healthy participants, participants with PD did not show altered temporal orienting effects in the speeded‐response task. However, they were impaired in using temporal cues to improve perceptual discrimination. In Experiment 2, we tested whether the temporal‐orienting deficits in the perceptual‐discrimination task depended on the requirement to ignore temporally distracting stimuli. We replicated the impaired temporal orienting for perceptual discrimination in an independent group of individuals with PD, and showed the impairment was abolished when individuals were on their dopaminergic medication. In a task without any distracting letters, however, patients off or on medication benefited normally from temporal orienting cues. Our findings suggest that deficits in temporal orienting in individuals with PD interact with specific task demands, such as the requirement to select target from temporally competing distractors. [ABSTRACT FROM AUTHOR] |
| Copyright of European Journal of Neuroscience is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
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