Cargando…
Reward Expectation Differentially Modulates Global and Local Spatial Working Memory Accuracy
Although it has been suggested that reward expectation affects the performance of spatial working memory tasks, controversial results have been found in previous experiments. Hence, it is still unclear to what extent reward expectation has an effect on working memory. To clarify this question, a mem...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8554088/ https://www.ncbi.nlm.nih.gov/pubmed/34721223 http://dx.doi.org/10.3389/fpsyg.2021.744400 |
_version_ | 1784591718004293632 |
---|---|
author | Zhou, Qingjie Jiang, Zanzan Ding, Jinhong |
author_facet | Zhou, Qingjie Jiang, Zanzan Ding, Jinhong |
author_sort | Zhou, Qingjie |
collection | PubMed |
description | Although it has been suggested that reward expectation affects the performance of spatial working memory tasks, controversial results have been found in previous experiments. Hence, it is still unclear to what extent reward expectation has an effect on working memory. To clarify this question, a memory-guided saccade task was applied, in which participants were instructed to retain and reconstruct a temporospatial sequence of four locations by moving their eyes in each trial. The global- and local-level spatial working memory accuracies were calculated to determine the reward effect on the global and local level of processing in spatial working memory tasks. Although high reward expectation enhanced the encoding of spatial information, the percentage of trials in which the cued location was correctly fixated decreased with increment of reward expectation. The reconstruction of the global temporospatial sequence was enhanced by reward expectation, whereas the local reconstruction performance was not affected by reward. Furthermore, the improvements in local representations of uncued locations and local sequences were at the cost of the representation of cued locations. The results suggest that the reward effect on spatial working memory is modulated by the level of processing, which supports the flexible resource theory during maintenance. |
format | Online Article Text |
id | pubmed-8554088 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-85540882021-10-30 Reward Expectation Differentially Modulates Global and Local Spatial Working Memory Accuracy Zhou, Qingjie Jiang, Zanzan Ding, Jinhong Front Psychol Psychology Although it has been suggested that reward expectation affects the performance of spatial working memory tasks, controversial results have been found in previous experiments. Hence, it is still unclear to what extent reward expectation has an effect on working memory. To clarify this question, a memory-guided saccade task was applied, in which participants were instructed to retain and reconstruct a temporospatial sequence of four locations by moving their eyes in each trial. The global- and local-level spatial working memory accuracies were calculated to determine the reward effect on the global and local level of processing in spatial working memory tasks. Although high reward expectation enhanced the encoding of spatial information, the percentage of trials in which the cued location was correctly fixated decreased with increment of reward expectation. The reconstruction of the global temporospatial sequence was enhanced by reward expectation, whereas the local reconstruction performance was not affected by reward. Furthermore, the improvements in local representations of uncued locations and local sequences were at the cost of the representation of cued locations. The results suggest that the reward effect on spatial working memory is modulated by the level of processing, which supports the flexible resource theory during maintenance. Frontiers Media S.A. 2021-10-15 /pmc/articles/PMC8554088/ /pubmed/34721223 http://dx.doi.org/10.3389/fpsyg.2021.744400 Text en Copyright © 2021 Zhou, Jiang and Ding. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Psychology Zhou, Qingjie Jiang, Zanzan Ding, Jinhong Reward Expectation Differentially Modulates Global and Local Spatial Working Memory Accuracy |
title | Reward Expectation Differentially Modulates Global and Local Spatial Working Memory Accuracy |
title_full | Reward Expectation Differentially Modulates Global and Local Spatial Working Memory Accuracy |
title_fullStr | Reward Expectation Differentially Modulates Global and Local Spatial Working Memory Accuracy |
title_full_unstemmed | Reward Expectation Differentially Modulates Global and Local Spatial Working Memory Accuracy |
title_short | Reward Expectation Differentially Modulates Global and Local Spatial Working Memory Accuracy |
title_sort | reward expectation differentially modulates global and local spatial working memory accuracy |
topic | Psychology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8554088/ https://www.ncbi.nlm.nih.gov/pubmed/34721223 http://dx.doi.org/10.3389/fpsyg.2021.744400 |
work_keys_str_mv | AT zhouqingjie rewardexpectationdifferentiallymodulatesglobalandlocalspatialworkingmemoryaccuracy AT jiangzanzan rewardexpectationdifferentiallymodulatesglobalandlocalspatialworkingmemoryaccuracy AT dingjinhong rewardexpectationdifferentiallymodulatesglobalandlocalspatialworkingmemoryaccuracy |