Dissociating Explicit and Implicit Timing in Parkinson's Disease Patients: Evidence from Bisection and Foreperiod Tasks

Frontiers in Human Neuroscience
Giovanna MioniFranca Stablum

Abstract

A consistent body of literature reported that Parkinson's disease (PD) is marked by severe deficits in temporal processing. However, the exact nature of timing problems in PD patients is still elusive. In particular, what remains unclear is whether the temporal dysfunction observed in PD patients regards explicit and/or implicit timing. Explicit timing tasks require participants to attend to the duration of the stimulus, whereas in implicit timing tasks no explicit instruction to process time is received but time still affects performance. In the present study, we investigated temporal ability in PD by comparing 20 PD participants and 20 control participants in both explicit and implicit timing tasks. Specifically, we used a time bisection task to investigate explicit timing and a foreperiod task for implicit timing. Moreover, this is the first study investigating sequential effects in PD participants. Results showed preserved temporal ability in PD participants in the implicit timing task only (i.e., normal foreperiod and sequential effects). By contrast, PD participants failed in the explicit timing task as they displayed shorter perceived durations and higher variability compared to controls. Overall, the dissociation report...Continue Reading

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Citations

Mar 21, 2018·Journal of Biomedical Science·Francisco MagalhãesSilmar Teixeira
Apr 14, 2020·The European Journal of Neuroscience·Anne-Caroline Martel, Paul Apicella
Jul 30, 2019·Frontiers in Neuroscience·Bartosz Jura
Mar 25, 2019·Frontiers in Integrative Neuroscience·Márcia Regina MottaJosé Lino Oliveira Bueno
Oct 20, 2020·PloS One·Elisa M Gallego Hiroyasu, Yuko Yotsumoto
Jan 16, 2021·The European Journal of Neuroscience·Nahid ZokaeiAnna Christina Nobre
Mar 24, 2021·Psychological Research·Sarah MaaßMartin Riemer

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