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Clinical Trial Summary

After few years of evolution, patients with Parkinson's disease may develop apathy, with different degrees of severity. Apathy is characterized by a loss of interest for the others and for activities. The lack of social interactions in these patients may be due to an impairment in decoding emotional facial expression. Indeed, facial expression recognition, which is necessary to understand other's emotional state, requires a subclinical facial mimicking of the expression observed. Yet, one of the clinical signs of PD is amimia.

This study aims to determinate if there is a facial mimicry disorder in PD ( Parkinson's disease )patients with emotional facial expression (EFE) recognition impairment, compared to healthy control subjects. We also want to know if this facial mimicry disorder is primary (subtended by facial mobility impairment, that is to say amimia) or secondary (related to the mirror neuron systems that allows us to activate similar neural networks when observing and feeling a specific emotion)


Clinical Trial Description

20 patients with an Idiopathic Parkinson's disease

+ 20 paired healthy volunteers (on sex, age, and education)

After inclusion, patients are evaluated two times: they are studied without medication (MED OFF) and with medication (STIM ON) in a randomized order. The 2 evaluations should be spaced out 15 days to one month (J0 and J+15d)

Healthy subjects have only one visit J0 (inclusion and emotional facial expression recognition tests are made at the same time) ;


Study Design

Allocation: Non-Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Open Label, Primary Purpose: Diagnostic


Related Conditions & MeSH terms


NCT number NCT01315405
Study type Interventional
Source University Hospital, Clermont-Ferrand
Contact Patrick LACARIN
Phone 04 73 75 11 95
Email placarin@chu-clermontferrand.fr
Status Recruiting
Phase N/A
Start date July 2010
Completion date July 2013

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