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Processing emotion from abstract art in frontotemporal lobar degeneration.

Miriam H Cohen1, Amelia M Carton1, Christopher J Hardy1

  • 1Dementia Research Centre, UCL Institute of Neurology, Department of Neurodegenerative Disease, University College London, London, United Kingdom.

Neuropsychologia
|January 10, 2016
PubMed
Summary

Abstract art processing reveals brain mechanisms for emotion decoding, even in frontotemporal lobar degeneration (FTLD). Impaired art emotion recognition in FTLD patients correlates with reduced grey matter in specific brain regions.

Keywords:
ArtEmotionFrontotemporal lobar degenerationSemantic dementia

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Area of Science:

  • Neuroscience
  • Psychology
  • Art Therapy

Background:

  • Art may convey emotions independently of biological or social cues, serving as a model for emotion decoding.
  • Frontotemporal lobar degeneration (FTLD) spectrum diseases often involve emotional impairment, yet art processing remains understudied in these patients.

Purpose of the Study:

  • To investigate the processing of emotion from abstract art in patients with major frontotemporal lobar degeneration (FTLD) syndromes.
  • To identify neuroanatomical correlates of emotion processing from abstract art in FTLD.

Main Methods:

  • A novel emotional valence matching task using abstract paintings was administered to FTLD patient groups (behavioral variant FTD, semantic variant PPA, nonfluent variant PPA) and healthy controls.
  • Performance was compared between groups, controlling for perceptual matching and facial emotion matching.
  • Voxel-based morphometry was used to assess neuroanatomical correlates via brain MRI.

Main Results:

  • All FTLD patient groups demonstrated deficits in processing emotion from abstract art compared to healthy individuals.
  • No significant differences were found between FTLD syndromic groups regarding emotion modality.
  • Reduced grey matter volume in the right lateral occipitotemporal cortex was associated with poorer art emotion valence matching.

Conclusions:

  • Abstract art serves as a valuable model for studying generic emotion decoding and aesthetic processing, particularly in neurodegenerative conditions like FTLD.
  • Deficits in abstract art emotion processing in FTLD are linked to structural changes in specific brain regions involved in visual processing.