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[semin] CRFDP, Josselin Baumard: Etude neuropsychologique des troubles praxiques et du schéma corporel dans les pathologies neurodégénératives, Mont-Saint-Aignan, 27 avr. 2017
(20/04/2017)

De : "James Riviere" james.riviere [ chez ] univ-rouen.fr

Séminaire sur l'étude neuropsychologique des troubles praxiques et du schéma corporel dans les pathologies neurodégénératives

Université de Rouen Normandie, laboratoire CRFDP (EA 7475)
Bâtiment Freinet, Place Emile Blondel 76821 Mont-Saint-Aignan

27 avril, 10:00 – 12:00, salle des thèses

Josselin Baumard (CRFDP, Université de Rouen Normandie)


Apraxia in general and tool use disorders in particular may reduce autonomy in patients with neurodegenerative diseases. However, very few studies have been done in this field, and they rarely take specificities of dementia into account (e.g., evolution, focal or diffuse atrophy, different phenotypes). A reason for this is that there is no theoretical consensus on the nature of apraxia.

Noticeably, two theories of apraxia can be distinguished: Memory-based hypotheses and reasoning-based or dynamic hypotheses. According to the memory-based approach, apraxia is due to a loss of stored knowledge (e.g., semantic memory, gesture engrams). In contrast, the dynamic approach posits that gesture production is made possible by online cognitive mechanisms (e.g., technical reasoning, affordances, sensory integration). In this framework, apraxic disorders have been explained by various cognitive impairments, some of which are not praxis-specific (e.g., semantic memory, planning skills, body schema, working memory, etc.).

The aim of the present work was to assess the relative contribution of these different cognitive mechanisms to apraxia in patients with different neurodegenerative diseases (i.e., Alzheimer’s disease, semantic dementia, corticobasal degeneration, posterior cortical atrophy).


The following issues will be addressed during this presentation, each corresponding to a different study and methodology: 1) The relative roles of technical reasoning and semantic memory in tool use; 2) The relative roles of motor and planning skills in tool use; 3) The relative roles of semantic memory and personal habits in object categorization; 4) Different patterns of impairment of sensory integration and body knowledge.


Agenda des séminaires : http://www.univ-rouen.fr/version-francaise/seminaires-laboratoire-545620.kjsp?RH=1374833262562

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James Rivière
Maître de conférences en psychologie du développement
Laboratoire CRFDP (EA 7475) Université de Rouen Normandie
http://www.univ-rouen.fr/version-francaise/outils/m-riviere-james-535475.kjsp?RH=1380274405365
https://www.researchgate.net/profile/James_Riviere

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