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Article dans une revue

Scene categorization in Alzheimer's disease: a saccadic choice task

Abstract : AIMS: We investigated the performance in scene categorization of patients with Alzheimer's disease (AD) using a saccadic choice task. METHOD: 24 patients with mild AD, 28 age-matched controls and 26 young people participated in the study. The participants were presented pairs of coloured photographs and were asked to make a saccadic eye movement to the picture corresponding to the target scene (natural vs. urban, indoor vs. outdoor). RESULTS: The patients' performance did not differ from chance for natural scenes. Differences between young and older controls and patients with AD were found in accuracy but not saccadic latency. CONCLUSIONS: The results are interpreted in terms of cerebral reorganization in the prefrontal and temporo-occipital cortex of patients with AD, but also in terms of impaired processing of visual global properties of scenes.
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https://hal.univ-lille.fr/hal-02360208
Contributeur : Lilloa Université de Lille <>
Soumis le : mardi 12 novembre 2019 - 16:55:42
Dernière modification le : mardi 3 mars 2020 - 11:18:02

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  • HAL Id : hal-02360208, version 1
  • PUBMED : 25759714

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Quentin Lenoble, Giovanna Bubbico, Sébastien Szaffarczyk, Florence Pasquier, Muriel Boucart. Scene categorization in Alzheimer's disease: a saccadic choice task. Dementia and geriatric cognitive disorders extra, 2015, Dementia and Geriatric Cognitive Disorders Extra, 5 (1), pp.1-12. ⟨hal-02360208⟩

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