Cargando…
The pupillary light response as a physiological index of aphantasia, sensory and phenomenological imagery strength
The pupillary light response is an important automatic physiological response which optimizes light reaching the retina. Recent work has shown that the pupil also adjusts in response to illusory brightness and a range of cognitive functions, however, it remains unclear what exactly drives these endo...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
eLife Sciences Publications, Ltd
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9018072/ https://www.ncbi.nlm.nih.gov/pubmed/35356890 http://dx.doi.org/10.7554/eLife.72484 |
_version_ | 1784688928386711552 |
---|---|
author | Kay, Lachlan Keogh, Rebecca Andrillon, Thomas Pearson, Joel |
author_facet | Kay, Lachlan Keogh, Rebecca Andrillon, Thomas Pearson, Joel |
author_sort | Kay, Lachlan |
collection | PubMed |
description | The pupillary light response is an important automatic physiological response which optimizes light reaching the retina. Recent work has shown that the pupil also adjusts in response to illusory brightness and a range of cognitive functions, however, it remains unclear what exactly drives these endogenous changes. Here, we show that the imagery pupillary light response correlates with objective measures of sensory imagery strength. Further, the trial-by-trial phenomenological vividness of visual imagery is tracked by the imagery pupillary light response. We also demonstrated that a group of individuals without visual imagery (aphantasia) do not show any significant evidence of an imagery pupillary light response, however they do show perceptual pupil light responses and pupil dilation with larger cognitive load. Our results provide evidence that the pupillary light response indexes the sensory strength of visual imagery. This work also provides the first physiological validation of aphantasia. |
format | Online Article Text |
id | pubmed-9018072 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | eLife Sciences Publications, Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-90180722022-04-20 The pupillary light response as a physiological index of aphantasia, sensory and phenomenological imagery strength Kay, Lachlan Keogh, Rebecca Andrillon, Thomas Pearson, Joel eLife Neuroscience The pupillary light response is an important automatic physiological response which optimizes light reaching the retina. Recent work has shown that the pupil also adjusts in response to illusory brightness and a range of cognitive functions, however, it remains unclear what exactly drives these endogenous changes. Here, we show that the imagery pupillary light response correlates with objective measures of sensory imagery strength. Further, the trial-by-trial phenomenological vividness of visual imagery is tracked by the imagery pupillary light response. We also demonstrated that a group of individuals without visual imagery (aphantasia) do not show any significant evidence of an imagery pupillary light response, however they do show perceptual pupil light responses and pupil dilation with larger cognitive load. Our results provide evidence that the pupillary light response indexes the sensory strength of visual imagery. This work also provides the first physiological validation of aphantasia. eLife Sciences Publications, Ltd 2022-03-31 /pmc/articles/PMC9018072/ /pubmed/35356890 http://dx.doi.org/10.7554/eLife.72484 Text en © 2022, Kay et al https://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use and redistribution provided that the original author and source are credited. |
spellingShingle | Neuroscience Kay, Lachlan Keogh, Rebecca Andrillon, Thomas Pearson, Joel The pupillary light response as a physiological index of aphantasia, sensory and phenomenological imagery strength |
title | The pupillary light response as a physiological index of aphantasia, sensory and phenomenological imagery strength |
title_full | The pupillary light response as a physiological index of aphantasia, sensory and phenomenological imagery strength |
title_fullStr | The pupillary light response as a physiological index of aphantasia, sensory and phenomenological imagery strength |
title_full_unstemmed | The pupillary light response as a physiological index of aphantasia, sensory and phenomenological imagery strength |
title_short | The pupillary light response as a physiological index of aphantasia, sensory and phenomenological imagery strength |
title_sort | pupillary light response as a physiological index of aphantasia, sensory and phenomenological imagery strength |
topic | Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9018072/ https://www.ncbi.nlm.nih.gov/pubmed/35356890 http://dx.doi.org/10.7554/eLife.72484 |
work_keys_str_mv | AT kaylachlan thepupillarylightresponseasaphysiologicalindexofaphantasiasensoryandphenomenologicalimagerystrength AT keoghrebecca thepupillarylightresponseasaphysiologicalindexofaphantasiasensoryandphenomenologicalimagerystrength AT andrillonthomas thepupillarylightresponseasaphysiologicalindexofaphantasiasensoryandphenomenologicalimagerystrength AT pearsonjoel thepupillarylightresponseasaphysiologicalindexofaphantasiasensoryandphenomenologicalimagerystrength AT kaylachlan pupillarylightresponseasaphysiologicalindexofaphantasiasensoryandphenomenologicalimagerystrength AT keoghrebecca pupillarylightresponseasaphysiologicalindexofaphantasiasensoryandphenomenologicalimagerystrength AT andrillonthomas pupillarylightresponseasaphysiologicalindexofaphantasiasensoryandphenomenologicalimagerystrength AT pearsonjoel pupillarylightresponseasaphysiologicalindexofaphantasiasensoryandphenomenologicalimagerystrength |