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Showing 1 to 7 of 7 entries
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Differential processing of natural scenes in posterior cortical atrophy and in Alzheimer's disease, as measured with a saccade choice task.

Frontiers in integrative neuroscience

Boucart M, Calais G, Lenoble Q, Moroni C, Pasquier F.
PMID: 25120440
Front Integr Neurosci. 2014 Jul 25;8:60. doi: 10.3389/fnint.2014.00060. eCollection 2014.

Atrophy of the medial temporal lobe structures that support scene perception and the binding of an object to its context (i.e., the hippocampus and the parahippocampal cortex) appears early in the course of Alzheimer's disease (AD). However, few studies...

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

Dementia and geriatric cognitive disorders extra

Lenoble Q, Bubbico G, Szaffarczyk S, Pasquier F, Boucart M.
PMID: 25759714
Dement Geriatr Cogn Dis Extra. 2015 Jan 16;5(1):1-12. doi: 10.1159/000366054. eCollection 2015.

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...

Face or building superiority in peripheral vision reversed by task requirements.

Advances in cognitive psychology

Jebara N, Pins D, Despretz P, Boucart M.
PMID: 20523849
Adv Cogn Psychol. 2009 Sep 08;5:42-53. doi: 10.2478/v10053-008-0065-5.

Peripheral vision has been the topic of few studies compared with central vision. Nevertheless, given that visual information covers all the visual field and that relevant information can originate from highly eccentric positions, the understanding of peripheral vision abilities...

Imagined motor action and eye movements in schizophrenia.

Frontiers in psychology

Delerue C, Boucart M.
PMID: 23874317
Front Psychol. 2013 Jul 12;4:426. doi: 10.3389/fpsyg.2013.00426. eCollection 2013.

Visual exploration and planning of actions are reported to be abnormal in schizophrenia. Most of the studies monitoring eye movements in patients with schizophrenia have been performed under free-viewing condition. The present study was designed to assess whether mentally...

The computation of occluded contours in visual agnosia: Evidence for early computation prior to shape binding and figure-ground coding.

Cognitive neuropsychology

Giersch A, Humphreys GW, Boucart M, Kovacs I.
PMID: 20945203
Cogn Neuropsychol. 2000 Dec 01;17(8):731-59. doi: 10.1080/026432900750038317.

We examined whether an agnosic patient with a deficit in early visual processing, HJA, completed occluded contours. We used matching tasks with stimuli composed of three superimposed or occluded shapes. Experiments 2 and 6 required superimposed or occluded shapes...

Low Spatial Frequency Bias in Schizophrenia is Not Face Specific: When the Integration of Coarse and Fine Information Fails.

Frontiers in psychology

Laprevote V, Oliva A, Ternois AS, Schwan R, Thomas P, Boucart M.
PMID: 23653616
Front Psychol. 2013 May 06;4:248. doi: 10.3389/fpsyg.2013.00248. eCollection 2013.

Studies have shown that patients with schizophrenia exhibit visual processing impairments, particularly regarding the processing of spatial frequencies. In a previous work, we found that, compared to healthy volunteers, patients were biased toward low spatial frequencies (LSF) to identify...

Semantic and Physical Properties of Peripheral Vision Are Used for Scene Categorization in Central Vision.

Journal of cognitive neuroscience

Peyrin C, Roux-Sibilon A, Trouilloud A, Khazaz S, Joly M, Pichat C, Boucart M, Krainik A, Kauffmann L.
PMID: 33571079
J Cogn Neurosci. 2021 Feb 11;1-15. doi: 10.1162/jocn_a_01689. Epub 2021 Feb 11.

Theories of visual recognition postulate that our ability to understand our visual environment at a glance is based on the extraction of the gist of the visual scene, a first global and rudimentary visual representation. Gist perception would be...

Showing 1 to 7 of 7 entries