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Autobiographical Memory Increases Pupil Dilation

BACKGROUND: Pupil activity has been widely considered as a “summed index” of physiological activities during cognitive processing. METHODOLOGY: We investigated pupil dilation during retrieval of autobiographical memory and compared pupil diameter with a control condition in which participants had to...

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Detalles Bibliográficos
Autores principales: El Haj, Mohamad, M. J. Janssen, Steve, Gallouj, Karim, Lenoble, Quentin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: De Gruyter 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6943370/
https://www.ncbi.nlm.nih.gov/pubmed/31915538
http://dx.doi.org/10.1515/tnsci-2019-0044
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author El Haj, Mohamad
M. J. Janssen, Steve
Gallouj, Karim
Lenoble, Quentin
author_facet El Haj, Mohamad
M. J. Janssen, Steve
Gallouj, Karim
Lenoble, Quentin
author_sort El Haj, Mohamad
collection PubMed
description BACKGROUND: Pupil activity has been widely considered as a “summed index” of physiological activities during cognitive processing. METHODOLOGY: We investigated pupil dilation during retrieval of autobiographical memory and compared pupil diameter with a control condition in which participants had to count aloud. We also measured pupil diameters retrieval of free (i.e., first memory that comes to mind), positive, and negative memories (memories associated, respectively, with the words “happy” and “sad”). RESULTS: Analyses demonstrated larger pupil diameters during the free, positive, and negative autobiographical memory retrieval than during the control task. Analyses also demonstrated no significant differences in pupil diameters across the three autobiographical memory conditions. CONCLUSION: These outcomes demonstrate that, compared with counting, autobiographical retrieval results in a larger pupil size. However, the emotional valence of memories yields non-significant effect on pupil diameters. Our findings demonstrate how autobiographical memory retrieval yields pupil dilation.
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spelling pubmed-69433702020-01-08 Autobiographical Memory Increases Pupil Dilation El Haj, Mohamad M. J. Janssen, Steve Gallouj, Karim Lenoble, Quentin Transl Neurosci Regular Articles BACKGROUND: Pupil activity has been widely considered as a “summed index” of physiological activities during cognitive processing. METHODOLOGY: We investigated pupil dilation during retrieval of autobiographical memory and compared pupil diameter with a control condition in which participants had to count aloud. We also measured pupil diameters retrieval of free (i.e., first memory that comes to mind), positive, and negative memories (memories associated, respectively, with the words “happy” and “sad”). RESULTS: Analyses demonstrated larger pupil diameters during the free, positive, and negative autobiographical memory retrieval than during the control task. Analyses also demonstrated no significant differences in pupil diameters across the three autobiographical memory conditions. CONCLUSION: These outcomes demonstrate that, compared with counting, autobiographical retrieval results in a larger pupil size. However, the emotional valence of memories yields non-significant effect on pupil diameters. Our findings demonstrate how autobiographical memory retrieval yields pupil dilation. De Gruyter 2019-12-19 /pmc/articles/PMC6943370/ /pubmed/31915538 http://dx.doi.org/10.1515/tnsci-2019-0044 Text en © 2019 Mohamad EL Haj et al. published by De Gruyter http://creativecommons.org/licenses/by/4.0 This work is licensed under the Creative Commons Attribution 4.0 Public License.
spellingShingle Regular Articles
El Haj, Mohamad
M. J. Janssen, Steve
Gallouj, Karim
Lenoble, Quentin
Autobiographical Memory Increases Pupil Dilation
title Autobiographical Memory Increases Pupil Dilation
title_full Autobiographical Memory Increases Pupil Dilation
title_fullStr Autobiographical Memory Increases Pupil Dilation
title_full_unstemmed Autobiographical Memory Increases Pupil Dilation
title_short Autobiographical Memory Increases Pupil Dilation
title_sort autobiographical memory increases pupil dilation
topic Regular Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6943370/
https://www.ncbi.nlm.nih.gov/pubmed/31915538
http://dx.doi.org/10.1515/tnsci-2019-0044
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