Dimension of visual information interacts with working memory in monkeys and humans
Abstract Humans demonstrate behavioural advantages (biases) towards particular dimensions (colour or shape of visual objects), but such biases are significantly altered in neuropsychological disorders. Recent studies have shown that lesions in the prefrontal cortex do not abolish dimensional biases,...
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Nature Portfolio
2022-03-01
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Series: | Scientific Reports |
Online Access: | https://doi.org/10.1038/s41598-022-09367-7 |
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author | Daniel J. Fehring Alexander J. Pascoe Zakia Z. Haque Ranshikha Samandra Seiichirou Yokoo Hiroshi Abe Marcello G. P. Rosa Keiji Tanaka Tetsuo Yamamori Farshad A. Mansouri |
author_facet | Daniel J. Fehring Alexander J. Pascoe Zakia Z. Haque Ranshikha Samandra Seiichirou Yokoo Hiroshi Abe Marcello G. P. Rosa Keiji Tanaka Tetsuo Yamamori Farshad A. Mansouri |
author_sort | Daniel J. Fehring |
collection | DOAJ |
description | Abstract Humans demonstrate behavioural advantages (biases) towards particular dimensions (colour or shape of visual objects), but such biases are significantly altered in neuropsychological disorders. Recent studies have shown that lesions in the prefrontal cortex do not abolish dimensional biases, and therefore suggest that such biases might not depend on top-down prefrontal-mediated attention and instead emerge as bottom-up processing advantages. We hypothesised that if dimensional biases merely emerge from an enhancement of object features, the presence of visual objects would be necessary for the manifestation of dimensional biases. In a specifically-designed working memory task, in which macaque monkeys and humans performed matching based on the object memory rather than the actual object, we found significant dimensional biases in both species, which appeared as a shorter response time and higher accuracy in the preferred dimension (colour and shape dimension in humans and monkeys, respectively). Moreover, the mnemonic demands of the task influenced the magnitude of dimensional bias. Our findings in two primate species indicate that the dichotomy of top-down and bottom-up processing does not fully explain the emergence of dimensional biases. Instead, dimensional biases may emerge when processed information regarding visual object features interact with mnemonic and executive functions to guide goal-directed behaviour. |
first_indexed | 2024-12-21T05:09:12Z |
format | Article |
id | doaj.art-defe84c3ed9842c48aaae47e1c82f074 |
institution | Directory Open Access Journal |
issn | 2045-2322 |
language | English |
last_indexed | 2024-12-21T05:09:12Z |
publishDate | 2022-03-01 |
publisher | Nature Portfolio |
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series | Scientific Reports |
spelling | doaj.art-defe84c3ed9842c48aaae47e1c82f0742022-12-21T19:15:06ZengNature PortfolioScientific Reports2045-23222022-03-0112111510.1038/s41598-022-09367-7Dimension of visual information interacts with working memory in monkeys and humansDaniel J. Fehring0Alexander J. Pascoe1Zakia Z. Haque2Ranshikha Samandra3Seiichirou Yokoo4Hiroshi Abe5Marcello G. P. Rosa6Keiji Tanaka7Tetsuo Yamamori8Farshad A. Mansouri9Cognitive Neuroscience Laboratory, Department of Physiology, Monash Biomedicine Discovery Institute, Monash UniversityCognitive Neuroscience Laboratory, Department of Physiology, Monash Biomedicine Discovery Institute, Monash UniversityCognitive Neuroscience Laboratory, Department of Physiology, Monash Biomedicine Discovery Institute, Monash UniversityCognitive Neuroscience Laboratory, Department of Physiology, Monash Biomedicine Discovery Institute, Monash UniversityRIKEN Center for Brain ScienceMolecular Analysis of Higher Brain Function, RIKEN Center for Brain ScienceARC Centre of Excellence in Integrative Brain Function, Monash UniversityRIKEN Center for Brain ScienceMolecular Analysis of Higher Brain Function, RIKEN Center for Brain ScienceCognitive Neuroscience Laboratory, Department of Physiology, Monash Biomedicine Discovery Institute, Monash UniversityAbstract Humans demonstrate behavioural advantages (biases) towards particular dimensions (colour or shape of visual objects), but such biases are significantly altered in neuropsychological disorders. Recent studies have shown that lesions in the prefrontal cortex do not abolish dimensional biases, and therefore suggest that such biases might not depend on top-down prefrontal-mediated attention and instead emerge as bottom-up processing advantages. We hypothesised that if dimensional biases merely emerge from an enhancement of object features, the presence of visual objects would be necessary for the manifestation of dimensional biases. In a specifically-designed working memory task, in which macaque monkeys and humans performed matching based on the object memory rather than the actual object, we found significant dimensional biases in both species, which appeared as a shorter response time and higher accuracy in the preferred dimension (colour and shape dimension in humans and monkeys, respectively). Moreover, the mnemonic demands of the task influenced the magnitude of dimensional bias. Our findings in two primate species indicate that the dichotomy of top-down and bottom-up processing does not fully explain the emergence of dimensional biases. Instead, dimensional biases may emerge when processed information regarding visual object features interact with mnemonic and executive functions to guide goal-directed behaviour.https://doi.org/10.1038/s41598-022-09367-7 |
spellingShingle | Daniel J. Fehring Alexander J. Pascoe Zakia Z. Haque Ranshikha Samandra Seiichirou Yokoo Hiroshi Abe Marcello G. P. Rosa Keiji Tanaka Tetsuo Yamamori Farshad A. Mansouri Dimension of visual information interacts with working memory in monkeys and humans Scientific Reports |
title | Dimension of visual information interacts with working memory in monkeys and humans |
title_full | Dimension of visual information interacts with working memory in monkeys and humans |
title_fullStr | Dimension of visual information interacts with working memory in monkeys and humans |
title_full_unstemmed | Dimension of visual information interacts with working memory in monkeys and humans |
title_short | Dimension of visual information interacts with working memory in monkeys and humans |
title_sort | dimension of visual information interacts with working memory in monkeys and humans |
url | https://doi.org/10.1038/s41598-022-09367-7 |
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