Διακρατικό ΠΜΣ Κλινική Νευροψυχολογία-Νοητικές Νευροεπιστήμες
Library of the School of Health Sciences

2018-07-12

2018

Vlachou Akrivi

Κωνσταντίνος Πόταγας, Αναπλ. Καθηγητής, Ιατρική, ΕΚΠΑ
Νικόλαος Σμυρνής, Αναπλ. Καθηγητής, Ιατρική, ΕΚΠΑ
Σωκράτης Παπαγεωργίου, Αναπλ. Καθηγητής, Ιατρική, ΕΚΠΑ

Χειρισμός των εμποδίων στο χώρο και αντίληψη των μεγεθών από τους ασθενείς με νόσο Πάρκινσον

Greek

The handling of the obstacles in space and size perception of patients with Parkinson's disease

Introduction: Patients suffering from Parkinson’s disease are considered to have deficits in visual-spatial function. Many of these patients present the “Freezing of Gait” symptom. Most of the existing experimental studies that have approached the nature of this deficit include motor components. The present research attempts to correlate potential visual-spatial deficits of patients with Parkinson’s disease with the FOG phenomenon, and thus contribute to the exploration of the nature of these visual-spatial disorders, by isolating the involvement of the motor element as much as possible. The question raised is whether the freezing is a motor deficit per se, or whether it is attributable to the perception of the spatial stimuli of the environment.
Method-Materials: The Montreal Cognitive Assessment (MoCA) was implemented for the cognitive assessment of the participants. A group of Parkinson’s disease patients was compared regarding their performance in two tasks involving visual obstacles (perception of distance and width) and one size (comparison) task with the performances of an equalized sample group with no neurological conditions.
Results-Outcomes: The differences between the two groups’ performances regarding the obstacles test are substantial. Regarding the size comparison task there were no significant statistical differences between the two groups. The Parkinson’s disease patients have more response times / latency compared to the healthy participants in both tests, but this delay does not compensate for their performance in the perception of distance and width (obstacles task). Patients’ performance in the cognitive test of size (comparison) task is no different from that of the control group and this may not account for their lower performance in the obstacles task.

Health Sciences

Parkinson's disease, Visuospatial deficits, Non-motor symptoms, Freezing of gait, Perception dysfunction

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https://pergamos.lib.uoa.gr/uoa/dl/object/2778411