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Chromatic induction in migraine

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Cerda_Company_2021_Vision_Chromatic_induction_migraine_CC.pdf (2.668Mb)
Date
06/08/2021
Author
Cerda-Company, Xim
Penacchio, Olivier
Otazu, Xavier
Keywords
Chromatic induction
Colour
Colour perception
Migraine
Psychophysics
Vision
RE Ophthalmology
BF Psychology
3rd-DAS
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Abstract
The human visual system is not a colorimeter. The perceived colour of a region does not only depend on its colour spectrum, but also on the colour spectra and geometric arrangement of neighbouring regions, a phenomenon called chromatic induction. Chromatic induction is thought to be driven by lateral interactions: the activity of a central neuron is modified by stimuli outside its classical receptive field through excitatory–inhibitory mechanisms. As there is growing evidence of an excitation/inhibition imbalance in migraine, we compared chromatic induction in migraine and control groups. As hypothesised, we found a difference in the strength of induction between the two groups, with stronger induction effects in migraine. On the other hand, given the increased prevalence of visual phenomena in migraine with aura, we also hypothesised that the difference between migraine and control would be more important in migraine with aura than in migraine without aura. Our experiments did not support this hypothesis. Taken together, our results suggest a link between excitation/inhibition imbalance and increased induction effects.
Citation
Cerda-Company , X , Penacchio , O & Otazu , X 2021 , ' Chromatic induction in migraine ' , Vision , vol. 5 , no. 3 , 37 . https://doi.org/10.3390/vision5030037
Publication
Vision
Status
Peer reviewed
DOI
https://doi.org/10.3390/vision5030037
ISSN
2411-5150
Type
Journal article
Rights
Copyright © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Description
Funding: This work is partially supported by the Spanish Ministerio de Economía, Industria y Competitividad, Gobierno de España through research project DPI2017-89867-C2-1-R, by the Agen- cia de Gestió d’Ajuts Universitaris i de Recerca (AGAUR) through 2017-SGR-649, and CERCA Programme/Generalitat de Catalunya.
Collections
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/23852

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