A case report of changes in asymmetric colour use in paintings produced over 3 years post-stroke by a patient with spatial neglect
Abstract The most striking pathological manifestation of spatial cognition is visuospatial neglect in which patients omit contralesional stimuli by failing to process important features on the left side of visual or mental scenes. Despite decades of extensive neuropsychological exploration, this syn...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-03-01
|
| Series: | Communications Psychology |
| Online Access: | https://doi.org/10.1038/s44271-025-00226-5 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849392408897257472 |
|---|---|
| author | Gilles Rode Eric Chabanat Marine Lunven Juliette Courtille Patrice Revol Karen T. Reilly Laure Pisella Yves Rossetti |
| author_facet | Gilles Rode Eric Chabanat Marine Lunven Juliette Courtille Patrice Revol Karen T. Reilly Laure Pisella Yves Rossetti |
| author_sort | Gilles Rode |
| collection | DOAJ |
| description | Abstract The most striking pathological manifestation of spatial cognition is visuospatial neglect in which patients omit contralesional stimuli by failing to process important features on the left side of visual or mental scenes. Despite decades of extensive neuropsychological exploration, this syndrome has still not revealed all its mysteries. Here we present the case of a person with visuospatial neglect who spontaneously produced 40 paintings in the 3 years following his stroke. By analysing the spatial distribution of colour entropy in these paintings over the course of recovery we found that these paintings contain perturbations that include changes in colour use. This approach, borrowed from statistical physics and information theory, revealed left-right asymmetries in boundary line length of monochromatic patches as well as in colour components. While the unpainted canvas surface disappeared as soon as 26 weeks post-stroke, left-right colour patch asymmetries displayed a slower recovery over one hundred weeks. Several hypotheses that can be tested in future research emerged from this study, including the possibility that these phenomenological findings demonstrate several distinct recovery mechanisms at work. |
| format | Article |
| id | doaj-art-66a88798f445456e99ae8195ce0ff9ea |
| institution | Kabale University |
| issn | 2731-9121 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Psychology |
| spelling | doaj-art-66a88798f445456e99ae8195ce0ff9ea2025-08-20T03:40:47ZengNature PortfolioCommunications Psychology2731-91212025-03-01311910.1038/s44271-025-00226-5A case report of changes in asymmetric colour use in paintings produced over 3 years post-stroke by a patient with spatial neglectGilles Rode0Eric Chabanat1Marine Lunven2Juliette Courtille3Patrice Revol4Karen T. Reilly5Laure Pisella6Yves Rossetti7Université Claude Bernard Lyon 1, CNRS, INSERM, Centre de Recherche en Neurosciences de Lyon CRNL U1028 UMR5292, TRAJECTOIRESUniversité Claude Bernard Lyon 1, CNRS, INSERM, Centre de Recherche en Neurosciences de Lyon CRNL U1028 UMR5292, TRAJECTOIRESLaboratoire de Neuropsychologie Interventionnelle, Département d’Etudes Cognitives, ENS, PSL Research University, UPEC, Université Paris-Est, CNRS, Paris, France Paris-Est, CNRSSorbonne Université, Sciences, normes, démocratie (SND), UMR 8011, 1 rue Victor CousinUniversité Claude Bernard Lyon 1, CNRS, INSERM, Centre de Recherche en Neurosciences de Lyon CRNL U1028 UMR5292, TRAJECTOIRESUniversité Claude Bernard Lyon 1, CNRS, INSERM, Centre de Recherche en Neurosciences de Lyon CRNL U1028 UMR5292, TRAJECTOIRESUniversité Claude Bernard Lyon 1, CNRS, INSERM, Centre de Recherche en Neurosciences de Lyon CRNL U1028 UMR5292, TRAJECTOIRESUniversité Claude Bernard Lyon 1, CNRS, INSERM, Centre de Recherche en Neurosciences de Lyon CRNL U1028 UMR5292, TRAJECTOIRESAbstract The most striking pathological manifestation of spatial cognition is visuospatial neglect in which patients omit contralesional stimuli by failing to process important features on the left side of visual or mental scenes. Despite decades of extensive neuropsychological exploration, this syndrome has still not revealed all its mysteries. Here we present the case of a person with visuospatial neglect who spontaneously produced 40 paintings in the 3 years following his stroke. By analysing the spatial distribution of colour entropy in these paintings over the course of recovery we found that these paintings contain perturbations that include changes in colour use. This approach, borrowed from statistical physics and information theory, revealed left-right asymmetries in boundary line length of monochromatic patches as well as in colour components. While the unpainted canvas surface disappeared as soon as 26 weeks post-stroke, left-right colour patch asymmetries displayed a slower recovery over one hundred weeks. Several hypotheses that can be tested in future research emerged from this study, including the possibility that these phenomenological findings demonstrate several distinct recovery mechanisms at work.https://doi.org/10.1038/s44271-025-00226-5 |
| spellingShingle | Gilles Rode Eric Chabanat Marine Lunven Juliette Courtille Patrice Revol Karen T. Reilly Laure Pisella Yves Rossetti A case report of changes in asymmetric colour use in paintings produced over 3 years post-stroke by a patient with spatial neglect Communications Psychology |
| title | A case report of changes in asymmetric colour use in paintings produced over 3 years post-stroke by a patient with spatial neglect |
| title_full | A case report of changes in asymmetric colour use in paintings produced over 3 years post-stroke by a patient with spatial neglect |
| title_fullStr | A case report of changes in asymmetric colour use in paintings produced over 3 years post-stroke by a patient with spatial neglect |
| title_full_unstemmed | A case report of changes in asymmetric colour use in paintings produced over 3 years post-stroke by a patient with spatial neglect |
| title_short | A case report of changes in asymmetric colour use in paintings produced over 3 years post-stroke by a patient with spatial neglect |
| title_sort | case report of changes in asymmetric colour use in paintings produced over 3 years post stroke by a patient with spatial neglect |
| url | https://doi.org/10.1038/s44271-025-00226-5 |
| work_keys_str_mv | AT gillesrode acasereportofchangesinasymmetriccolouruseinpaintingsproducedover3yearspoststrokebyapatientwithspatialneglect AT ericchabanat acasereportofchangesinasymmetriccolouruseinpaintingsproducedover3yearspoststrokebyapatientwithspatialneglect AT marinelunven acasereportofchangesinasymmetriccolouruseinpaintingsproducedover3yearspoststrokebyapatientwithspatialneglect AT juliettecourtille acasereportofchangesinasymmetriccolouruseinpaintingsproducedover3yearspoststrokebyapatientwithspatialneglect AT patricerevol acasereportofchangesinasymmetriccolouruseinpaintingsproducedover3yearspoststrokebyapatientwithspatialneglect AT karentreilly acasereportofchangesinasymmetriccolouruseinpaintingsproducedover3yearspoststrokebyapatientwithspatialneglect AT laurepisella acasereportofchangesinasymmetriccolouruseinpaintingsproducedover3yearspoststrokebyapatientwithspatialneglect AT yvesrossetti acasereportofchangesinasymmetriccolouruseinpaintingsproducedover3yearspoststrokebyapatientwithspatialneglect AT gillesrode casereportofchangesinasymmetriccolouruseinpaintingsproducedover3yearspoststrokebyapatientwithspatialneglect AT ericchabanat casereportofchangesinasymmetriccolouruseinpaintingsproducedover3yearspoststrokebyapatientwithspatialneglect AT marinelunven casereportofchangesinasymmetriccolouruseinpaintingsproducedover3yearspoststrokebyapatientwithspatialneglect AT juliettecourtille casereportofchangesinasymmetriccolouruseinpaintingsproducedover3yearspoststrokebyapatientwithspatialneglect AT patricerevol casereportofchangesinasymmetriccolouruseinpaintingsproducedover3yearspoststrokebyapatientwithspatialneglect AT karentreilly casereportofchangesinasymmetriccolouruseinpaintingsproducedover3yearspoststrokebyapatientwithspatialneglect AT laurepisella casereportofchangesinasymmetriccolouruseinpaintingsproducedover3yearspoststrokebyapatientwithspatialneglect AT yvesrossetti casereportofchangesinasymmetriccolouruseinpaintingsproducedover3yearspoststrokebyapatientwithspatialneglect |