Briefly Flashed Scenes Can Be Stored in Long-Term Memory
The capacity of human memory is impressive. Previous reports have shown that when asked to memorize images, participants can recognize several thousands of visual objects in great details even with a single viewing of a few seconds per image. In this experiment, we tested recognition performance for...
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doaj-22e76a9a2cf84fd08e8a362b237039362020-11-24T21:08:42ZengFrontiers Media S.A.Frontiers in Neuroscience1662-453X2018-10-011210.3389/fnins.2018.00688386850Briefly Flashed Scenes Can Be Stored in Long-Term MemoryArnaud Delorme0Arnaud Delorme1Arnaud Delorme2Arnaud Delorme3Marlène Poncet4Marlène Poncet5Michèle Fabre-Thorpe6Michèle Fabre-Thorpe7Centre de Recherche Cerveau et Cognition, Université Toulouse III - Paul Sabatier, Toulouse, FranceCentre National de la Recherche Scientifique, Centre de Recherche Cerveau et Cognition, Toulouse, FranceInstitute for Neural Computation, University of California, San Diego, La Jolla, CA, United StatesInstitute of Noetic Sciences, Petaluma, CA, United StatesCentre de Recherche Cerveau et Cognition, Université Toulouse III - Paul Sabatier, Toulouse, FranceCentre National de la Recherche Scientifique, Centre de Recherche Cerveau et Cognition, Toulouse, FranceCentre de Recherche Cerveau et Cognition, Université Toulouse III - Paul Sabatier, Toulouse, FranceCentre National de la Recherche Scientifique, Centre de Recherche Cerveau et Cognition, Toulouse, FranceThe capacity of human memory is impressive. Previous reports have shown that when asked to memorize images, participants can recognize several thousands of visual objects in great details even with a single viewing of a few seconds per image. In this experiment, we tested recognition performance for natural scenes that participants saw for 20 ms only once (untrained group) or 22 times over many days (trained group) in an unrelated task. 400 images (200 previously viewed and 200 novel images) were flashed one at a time and participants were asked to lift their finger from a pad whenever they thought they had already seen the image (go/no-go paradigm). Compared to previous reports of excellent recognition performance with only single presentations of a few seconds, untrained participants were able to recognize only 64% of the 200 images they had seen few minutes before. On the other hand, trained participants, who had processed the flashed images (20 ms) several times, could correctly recognize 89% of them. EEG recordings confirmed these behavioral results. As early as 230 ms after stimulus onset, a significant event-related-potential (ERP) difference between familiar and new images was observed for the trained but not for the untrained group. These results show that briefly flashed unmasked scenes can be incidentally stored in long-term memory when repeated.https://www.frontiersin.org/article/10.3389/fnins.2018.00688/fullcategorizationlong-term memoryvisual perceptionanimal imagesgo/no-go task |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Arnaud Delorme Arnaud Delorme Arnaud Delorme Arnaud Delorme Marlène Poncet Marlène Poncet Michèle Fabre-Thorpe Michèle Fabre-Thorpe |
spellingShingle |
Arnaud Delorme Arnaud Delorme Arnaud Delorme Arnaud Delorme Marlène Poncet Marlène Poncet Michèle Fabre-Thorpe Michèle Fabre-Thorpe Briefly Flashed Scenes Can Be Stored in Long-Term Memory Frontiers in Neuroscience categorization long-term memory visual perception animal images go/no-go task |
author_facet |
Arnaud Delorme Arnaud Delorme Arnaud Delorme Arnaud Delorme Marlène Poncet Marlène Poncet Michèle Fabre-Thorpe Michèle Fabre-Thorpe |
author_sort |
Arnaud Delorme |
title |
Briefly Flashed Scenes Can Be Stored in Long-Term Memory |
title_short |
Briefly Flashed Scenes Can Be Stored in Long-Term Memory |
title_full |
Briefly Flashed Scenes Can Be Stored in Long-Term Memory |
title_fullStr |
Briefly Flashed Scenes Can Be Stored in Long-Term Memory |
title_full_unstemmed |
Briefly Flashed Scenes Can Be Stored in Long-Term Memory |
title_sort |
briefly flashed scenes can be stored in long-term memory |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Neuroscience |
issn |
1662-453X |
publishDate |
2018-10-01 |
description |
The capacity of human memory is impressive. Previous reports have shown that when asked to memorize images, participants can recognize several thousands of visual objects in great details even with a single viewing of a few seconds per image. In this experiment, we tested recognition performance for natural scenes that participants saw for 20 ms only once (untrained group) or 22 times over many days (trained group) in an unrelated task. 400 images (200 previously viewed and 200 novel images) were flashed one at a time and participants were asked to lift their finger from a pad whenever they thought they had already seen the image (go/no-go paradigm). Compared to previous reports of excellent recognition performance with only single presentations of a few seconds, untrained participants were able to recognize only 64% of the 200 images they had seen few minutes before. On the other hand, trained participants, who had processed the flashed images (20 ms) several times, could correctly recognize 89% of them. EEG recordings confirmed these behavioral results. As early as 230 ms after stimulus onset, a significant event-related-potential (ERP) difference between familiar and new images was observed for the trained but not for the untrained group. These results show that briefly flashed unmasked scenes can be incidentally stored in long-term memory when repeated. |
topic |
categorization long-term memory visual perception animal images go/no-go task |
url |
https://www.frontiersin.org/article/10.3389/fnins.2018.00688/full |
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