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Front. Integr. Neurosci. | doi: 10.3389/fnint.2019.00042

Lack of temporal impairment in patients with Mild Cognitive Impairment

 Giovanna Mioni1, 2*, Lucia Meligrana3, Francesco Perini3,  Michela Marcon3 and  Franca Stablum2
  • 1University of Padova, Italy
  • 2Department of General Psychology, University of Padova, Italy
  • 3Other, Italy

In the present study, we investigate possible temporal impairment in MCI patients and the amount of temporal distortions caused by the presentation of emotional facial expressions (anger, shame, and neutral) in MCI patients and controls. Twelve older adults with MCI and 14 healthy older adults were enrolled in the present study. All participants underwent a complete neuropsychological evaluation. We used three timing tasks to tap temporal abilities, namely, time bisection (standard intervals lasting 400 and 1600 ms), finger tapping (free and 1-sec) and simple reaction time tasks. The stimuli used in the time bisection task were facial emotional stimuli expressing anger or shame to investigate a possible contribution of emotional information as previously observed on healthy adults. MCI patients showed temporal abilities comparable to controls. We observed an effect of facial emotional stimuli on time perception when data were analysed in term of proportion of long responses, and this result was mainly driven by the temporal overestimation when facial expression of anger was presented in controls. Results seem to suggest that the severity of the cognitive dysfunction accounts more than compromised internal clock for subjective temporal impairment

Keywords: Mild Cognitive Impairment, time processing, emotion, Time bisection task, Temporal dysfunction

Received: 08 Mar 2019; Accepted: 05 Aug 2019.

Copyright: © 2019 Mioni, Meligrana, Perini, Marcon and Stablum. 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(s) 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.

* Correspondence: Prof. Giovanna Mioni, University of Padova, Padova, Italy, mioni.giovanna@gmail.com