Author: Goudour Amandine Samson Severine Bakchine Serge Ehrle Nathalie
Publisher: Routledge Ltd
ISSN: 1382-5585
Source: Aging, Neuropsychology, and Cognition (Neuropsychology, Development and Cogniti, Vol.18, Iss.2, 2011-03, pp. : 230-253
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
The present study investigated object recognition impairment and the existence of category effects in patients with mild Alzheimer's disease. A battery of tests was designed to assess the deterioration of semantic memory and/or the existence of agnosia by evaluating visual and auditory naming, knowledge of structural descriptions (pre-semantic representation of an object within each perceptual system) and conceptual knowledge. The group of Alzheimer's patients were impaired in all experimental tests as compared to healthy participants. This result suggests an impairment of multiple levels of object integration processing even at an early stage of the disease. The patients also demonstrated a category effect with massive difficulties in recognizing human actions and musical instruments as compared to the other categories. This study provides an innovative clinical tool for exploring the recognition of visual and auditory objects at different levels of representation, allowing for the description of early signs of Alzheimer disease.
Related content
By Hudon Carol Villeneuve Sylvia Belleville Sylvie
Journal of Clinical and Experimental Neuropsychology (Neuropsychology, Developm, Vol. 33, Iss. 6, 2011-07 ,pp. :
MILD COGNITIVE IMPAIRMENT: AGING TO ALZHEIMER’S DISEASE
Brain, Vol. 127, Iss. 1, 2004-01 ,pp. :