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Visual Exploration at Higher Fixation Frequency Increases Subsequent Memory Recall
Only a small proportion of what we see can later be recalled. Up to date it is unknown how far differences in visual exploration during encoding affect the strength of episodic memories. Here, we identified individual gaze characteristics by analyzing eye tracking data in a picture encoding task per...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8153053/ https://www.ncbi.nlm.nih.gov/pubmed/34296105 http://dx.doi.org/10.1093/texcom/tgaa032 |
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author | Fehlmann, Bernhard Coynel, David Schicktanz, Nathalie Milnik, Annette Gschwind, Leo Hofmann, Pascal Papassotiropoulos, Andreas de Quervain, Dominique J-F |
author_facet | Fehlmann, Bernhard Coynel, David Schicktanz, Nathalie Milnik, Annette Gschwind, Leo Hofmann, Pascal Papassotiropoulos, Andreas de Quervain, Dominique J-F |
author_sort | Fehlmann, Bernhard |
collection | PubMed |
description | Only a small proportion of what we see can later be recalled. Up to date it is unknown how far differences in visual exploration during encoding affect the strength of episodic memories. Here, we identified individual gaze characteristics by analyzing eye tracking data in a picture encoding task performed by 967 healthy subjects during fMRI. We found a positive correlation between fixation frequency during visual exploration and subsequent free recall performance. Brain imaging results showed a positive correlation of fixation frequency with activations in regions related to vision and memory, including the medial temporal lobe. To investigate if higher fixation frequency is causally linked to better memory, we experimentally manipulated visual exploration patterns in an independent population of 64 subjects. Doubling the number of fixations within a given exploration time increased subsequent free recall performance by 19%. Our findings provide evidence for a causal relationship between fixation frequency and episodic memory for visual information. |
format | Online Article Text |
id | pubmed-8153053 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-81530532021-07-21 Visual Exploration at Higher Fixation Frequency Increases Subsequent Memory Recall Fehlmann, Bernhard Coynel, David Schicktanz, Nathalie Milnik, Annette Gschwind, Leo Hofmann, Pascal Papassotiropoulos, Andreas de Quervain, Dominique J-F Cereb Cortex Commun Original Article Only a small proportion of what we see can later be recalled. Up to date it is unknown how far differences in visual exploration during encoding affect the strength of episodic memories. Here, we identified individual gaze characteristics by analyzing eye tracking data in a picture encoding task performed by 967 healthy subjects during fMRI. We found a positive correlation between fixation frequency during visual exploration and subsequent free recall performance. Brain imaging results showed a positive correlation of fixation frequency with activations in regions related to vision and memory, including the medial temporal lobe. To investigate if higher fixation frequency is causally linked to better memory, we experimentally manipulated visual exploration patterns in an independent population of 64 subjects. Doubling the number of fixations within a given exploration time increased subsequent free recall performance by 19%. Our findings provide evidence for a causal relationship between fixation frequency and episodic memory for visual information. Oxford University Press 2020-07-21 /pmc/articles/PMC8153053/ /pubmed/34296105 http://dx.doi.org/10.1093/texcom/tgaa032 Text en © The Author(s) 2020. Published by Oxford University Press. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Fehlmann, Bernhard Coynel, David Schicktanz, Nathalie Milnik, Annette Gschwind, Leo Hofmann, Pascal Papassotiropoulos, Andreas de Quervain, Dominique J-F Visual Exploration at Higher Fixation Frequency Increases Subsequent Memory Recall |
title | Visual Exploration at Higher Fixation Frequency Increases Subsequent Memory Recall |
title_full | Visual Exploration at Higher Fixation Frequency Increases Subsequent Memory Recall |
title_fullStr | Visual Exploration at Higher Fixation Frequency Increases Subsequent Memory Recall |
title_full_unstemmed | Visual Exploration at Higher Fixation Frequency Increases Subsequent Memory Recall |
title_short | Visual Exploration at Higher Fixation Frequency Increases Subsequent Memory Recall |
title_sort | visual exploration at higher fixation frequency increases subsequent memory recall |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8153053/ https://www.ncbi.nlm.nih.gov/pubmed/34296105 http://dx.doi.org/10.1093/texcom/tgaa032 |
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