Cargando…

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

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 re...

Descripción completa

Detalles Bibliográficos
Autores principales: Mioni, Giovanna, Capizzi, Mariagrazia, Vallesi, Antonino, Correa, Ángel, Di Giacopo, Raffaella, Stablum, Franca
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5808217/
https://www.ncbi.nlm.nih.gov/pubmed/29467632
http://dx.doi.org/10.3389/fnhum.2018.00017
_version_ 1783299424936525824
author Mioni, Giovanna
Capizzi, Mariagrazia
Vallesi, Antonino
Correa, Ángel
Di Giacopo, Raffaella
Stablum, Franca
author_facet Mioni, Giovanna
Capizzi, Mariagrazia
Vallesi, Antonino
Correa, Ángel
Di Giacopo, Raffaella
Stablum, Franca
author_sort Mioni, Giovanna
collection PubMed
description 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 reported here supports the idea that timing can be differentiated according to whether it is explicitly or implicitly processed, and that PD participants are selectively impaired in the explicit processing of time.
format Online
Article
Text
id pubmed-5808217
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher Frontiers Media S.A.
record_format MEDLINE/PubMed
spelling pubmed-58082172018-02-21 Dissociating Explicit and Implicit Timing in Parkinson’s Disease Patients: Evidence from Bisection and Foreperiod Tasks Mioni, Giovanna Capizzi, Mariagrazia Vallesi, Antonino Correa, Ángel Di Giacopo, Raffaella Stablum, Franca Front Hum Neurosci Neuroscience 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 reported here supports the idea that timing can be differentiated according to whether it is explicitly or implicitly processed, and that PD participants are selectively impaired in the explicit processing of time. Frontiers Media S.A. 2018-02-06 /pmc/articles/PMC5808217/ /pubmed/29467632 http://dx.doi.org/10.3389/fnhum.2018.00017 Text en Copyright © 2018 Mioni, Capizzi, Vallesi, Correa, Di Giacopo and Stablum. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Neuroscience
Mioni, Giovanna
Capizzi, Mariagrazia
Vallesi, Antonino
Correa, Ángel
Di Giacopo, Raffaella
Stablum, Franca
Dissociating Explicit and Implicit Timing in Parkinson’s Disease Patients: Evidence from Bisection and Foreperiod Tasks
title Dissociating Explicit and Implicit Timing in Parkinson’s Disease Patients: Evidence from Bisection and Foreperiod Tasks
title_full Dissociating Explicit and Implicit Timing in Parkinson’s Disease Patients: Evidence from Bisection and Foreperiod Tasks
title_fullStr Dissociating Explicit and Implicit Timing in Parkinson’s Disease Patients: Evidence from Bisection and Foreperiod Tasks
title_full_unstemmed Dissociating Explicit and Implicit Timing in Parkinson’s Disease Patients: Evidence from Bisection and Foreperiod Tasks
title_short Dissociating Explicit and Implicit Timing in Parkinson’s Disease Patients: Evidence from Bisection and Foreperiod Tasks
title_sort dissociating explicit and implicit timing in parkinson’s disease patients: evidence from bisection and foreperiod tasks
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5808217/
https://www.ncbi.nlm.nih.gov/pubmed/29467632
http://dx.doi.org/10.3389/fnhum.2018.00017
work_keys_str_mv AT mionigiovanna dissociatingexplicitandimplicittiminginparkinsonsdiseasepatientsevidencefrombisectionandforeperiodtasks
AT capizzimariagrazia dissociatingexplicitandimplicittiminginparkinsonsdiseasepatientsevidencefrombisectionandforeperiodtasks
AT vallesiantonino dissociatingexplicitandimplicittiminginparkinsonsdiseasepatientsevidencefrombisectionandforeperiodtasks
AT correaangel dissociatingexplicitandimplicittiminginparkinsonsdiseasepatientsevidencefrombisectionandforeperiodtasks
AT digiacoporaffaella dissociatingexplicitandimplicittiminginparkinsonsdiseasepatientsevidencefrombisectionandforeperiodtasks
AT stablumfranca dissociatingexplicitandimplicittiminginparkinsonsdiseasepatientsevidencefrombisectionandforeperiodtasks