Seeing and imagining the "same" objects in unilateral neglect.

Full Abstract

Dissociations between perceptual and imaginal neglect are typically investigated by using very different tasks (e.g. visual target cancellation vs. place descriptions). Here we report patients' performance on imaginal and perceptual tasks which shared identical stimuli and procedure, except for the modality of stimulus presentation. In different tasks, participants either saw towns/regions on a map of France or heard their names, and pressed one of two keys according to the stimulus location (left or right of Paris). Neglect patients as a group were less accurate for left-sided stimuli in both modalities, but on single-case analysis only one patient with perceptual neglect had asymmetrical imaginal accuracy. These results confirmed that imaginal neglect is relatively rare, and is usually associated with perceptual neglect. Perceptual neglect resulted more frequent and severe than imaginal neglect, also when assessed using strictly comparable tests, consistent with the exogenous orienting bias typically observed in these patients.

Learn Faster Today Improve your study skills

Author information

Author/s: Bourlon, Clémence (C); Pradat-Diehl, Pascale (P); Duret, Christophe (C); Azouvi, Philippe (P); Bartolomeo, Paolo (P);

Affiliation: INSERM UMR_S 610, IFR 70, Pavillon Claude Bernard, Hôpital Pitié-Salpêtrière, 47 bd de l'Hôpital, 75013 Paris, France. c.bourlon(-atsign-)gmail.com

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Neuropsychologia (Neuropsychologia), published in England. (Language: eng)

Reference: 2008-Aug; vol 46 (issue 10) : pp 2602-6

Dates: Created 2008/06/09; Completed 2008/09/26;

PMID: 18486952, status: MEDLINE (last retrieval date: 11/6/2008)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

External Links for this article (including full text providers, if available):

Click Electronic Full-text Provider Links to see options for finding the electronic full text links to this article. Note there may be a subscription or fee required for access to the full text. See our FAQ for information on finding FREE full text articles.

This article may also be located in paper journal collections available in many libraries. Use the Journal and Publication Information above to find the full article.

MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Aged
Analysis of Variance
Female
Functional Laterality - physiology
Humans
Imagination - physiology
Male

Male
Middle Aged
Pattern Recognition, Visual - physiology
Perceptual Disorders - physiopathology
Photic Stimulation - methods
Reaction Time - physiology
Vision - physiology

These are the highest related articles currently in the database:

See 100+ related articles.