Cognition spatiale

Le 01/12/2022 de 15:00 à 16:30

Retour Session


Récupération d’une héminégligence spatiale à travers une série d’autoportraits chez un peintre.

Hugo ARDAILLON (Saint Genis LAVAL, France), Shams RIBAULT (Saint-Genis-Laval, France), Baptiste EKLU (Saint-Genis-Laval, France), Gilles RODE (Saint-Genis-Laval, France)

Objective : In healthy subjects, visuospatial abilities of the right hemisphere are crucially engaged in painting. Pictorial activity could be severely altered after a right cerebral lesion with hemispatial neglect. Analysis of renowned artists' artworks before and after a stroke highlights significant abnormalities due to the impairment of the processes involved in spatial representation affecting size, form, perspective, or colour.

Material / Patients and Methods : We report the case of a 65-year-old right-handed painter, presented with a middle cerebral artery stroke in 2016. Examination showed egocentric and allocentric neglect in self-portraits. From 2016 to 2022, the patient made 29 self-portraits, which were compared to 5 self-portraits painted before the stroke, each time in the same way in front of a mirror. Qualitative analysis of the paintings was performed regarding neglected surface, asymmetry, and deviation from midline.

Results : Qualitative analysis revealed defectives manifestations such as unpainted surfaces, omissions, size reduction of the left part of hemiface and productive manifestations such as distorsions or hyperschematia. At the end of the period, these features had disappeared. However, the characteristics of the self-portraits (thickness of the lines, details, colour) remained different from the paintings made before the stroke, reflecting the impact of the lesion beyond hemispatial neglect.

Discussion - Conclusion : In this case, this freely chosen activity probably contributed to recovery from hemineglect. Self-portrait painting with a mirror could be impaired by both neglect of the left side of the face (personal space neglect) and neglect of its reflection in the mirror, or its representation on the canvas (extra-personal space neglect).

Keywords : middle cerebral artery, right brain damage, hemispatial neglect, space representation, body image, hyperschematia, egocentric representation, extra-personal space, personal space, painting, artwork

Disclosure of interest : No conflict to declare.