title: Effects of Emotional Facial Expression on Time Perception in Patients with Parkinson's Disease.
abstract: Previous studies have demonstrated that emotional facial expressions alter temporal judgments. Moreover, while some studies conducted with Parkinson's disease (PD) patients suggest dysfunction in the recognition of emotional facial expression, others have shown a dysfunction in time perception. In the present study, we investigate the magnitude of temporal distortions caused by the presentation of emotional facial expressions (anger, shame, and neutral) in PD patients and controls. Twenty-five older adults with PD and 17 healthy older adults took part in the present study. PD patients were divided into two sub-groups, with and without mild cognitive impairment (MCI), based on their neuropsychological performance. Participants were tested with a time bisection task with standard intervals lasting 400 ms and 1600 ms. The effect of facial emotional stimuli on time perception was evident in all participants, yet the effect was greater for PD-MCI patients. Furthermore, PD-MCI patients were more likely to underestimate long and overestimate short temporal intervals than PD-non-MCI patients and controls. Temporal impairment in PD-MCI patients seem to be mainly caused by a memory dysfunction. (JINS, 2016, 22, 890-899).
authors.affiliation: 1Department of General Psychology,University of Padova,Italy.
authors.forename: Giovanna
authors.initials: G
authors.lastname: Mioni
authors.affiliation: 2U.O. Neurologia,Ospedale San Bortolo,Vicenza,Italy.
authors.forename: Lucia
authors.initials: L
authors.lastname: Meligrana
authors.affiliation: 4École de Psychologie,Université Laval,Québec,Canada.
authors.forename: Simon
authors.initials: S
authors.lastname: Grondin
authors.affiliation: 2U.O. Neurologia,Ospedale San Bortolo,Vicenza,Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: Perini
authors.affiliation: 2U.O. Neurologia,Ospedale San Bortolo,Vicenza,Italy.
authors.forename: Luigi
authors.initials: L
authors.lastname: Bartolomei
authors.affiliation: 1Department of General Psychology,University of Padova,Italy.
authors.forename: Franca
authors.initials: F
authors.lastname: Stablum
mesh_terms: D000368:Aged; D004644:Emotions / Q000502:physiology*; D005149:Facial Expression; D000066499:Facial Recognition / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000503:physiopathology*; D013998:Time Perception / Q000502:physiology*
keywords: Emotion; Facial expression; Mild cognitive impairment; Parkinson’s disease; Time bisection task; Time perception