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Spatial frequency equalization does not prevent spatial–numerical associations
There is an intense debate surrounding the origin of spatial–numerical associations (SNAs), according to which small numbers are mapped onto the left side of the space and large numbers onto the right. Despite evidence suggesting that SNAs would emerge as an innate predisposition to map numerical in...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer US
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8821778/ https://www.ncbi.nlm.nih.gov/pubmed/35132580 http://dx.doi.org/10.3758/s13423-022-02060-w |
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author | Adriano, Andrea Rinaldi, Luca Girelli, Luisa |
author_facet | Adriano, Andrea Rinaldi, Luca Girelli, Luisa |
author_sort | Adriano, Andrea |
collection | PubMed |
description | There is an intense debate surrounding the origin of spatial–numerical associations (SNAs), according to which small numbers are mapped onto the left side of the space and large numbers onto the right. Despite evidence suggesting that SNAs would emerge as an innate predisposition to map numerical information onto a left-to-right spatially oriented mental representation, alternative accounts have challenged these proposals, maintaining that such a mapping would be the result of a mere spatial frequency (SF) coding of any visual image. That is, any smaller or larger array of objects would naturally contain more low or high SF information and, accordingly, each hemisphere would be preferentially tuned only for one SF range (e.g., right hemisphere tuned for low SF and left hemisphere tuned for high SF). This would determine the typical SNA (e.g., faster RTs for small numerical arrays with the left hand and for large numerical arrays with the right hand). To directly probe the role of SF coding in SNAs, we tested participants in a typical dot-arrays comparison task with two numerical sets: one in which SFs were confounded with numerosity (Experiment 1) and one in which the full SF power spectrum was equalized across all stimuli, keeping this cue uninformative about numerosity (Experiment 2). We found that SNAs emerged in both experiments, independently of whether SF was confounded or not with numerosity. Taken together, these findings suggest that SNAs cannot simply originate from SF power spectrum alone, and, thus, they rule out the brain’s asymmetric SF tuning as a primary cause of such an effect. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.3758/s13423-022-02060-w. |
format | Online Article Text |
id | pubmed-8821778 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
spelling | pubmed-88217782022-02-08 Spatial frequency equalization does not prevent spatial–numerical associations Adriano, Andrea Rinaldi, Luca Girelli, Luisa Psychon Bull Rev Brief Report There is an intense debate surrounding the origin of spatial–numerical associations (SNAs), according to which small numbers are mapped onto the left side of the space and large numbers onto the right. Despite evidence suggesting that SNAs would emerge as an innate predisposition to map numerical information onto a left-to-right spatially oriented mental representation, alternative accounts have challenged these proposals, maintaining that such a mapping would be the result of a mere spatial frequency (SF) coding of any visual image. That is, any smaller or larger array of objects would naturally contain more low or high SF information and, accordingly, each hemisphere would be preferentially tuned only for one SF range (e.g., right hemisphere tuned for low SF and left hemisphere tuned for high SF). This would determine the typical SNA (e.g., faster RTs for small numerical arrays with the left hand and for large numerical arrays with the right hand). To directly probe the role of SF coding in SNAs, we tested participants in a typical dot-arrays comparison task with two numerical sets: one in which SFs were confounded with numerosity (Experiment 1) and one in which the full SF power spectrum was equalized across all stimuli, keeping this cue uninformative about numerosity (Experiment 2). We found that SNAs emerged in both experiments, independently of whether SF was confounded or not with numerosity. Taken together, these findings suggest that SNAs cannot simply originate from SF power spectrum alone, and, thus, they rule out the brain’s asymmetric SF tuning as a primary cause of such an effect. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.3758/s13423-022-02060-w. Springer US 2022-02-07 2022 /pmc/articles/PMC8821778/ /pubmed/35132580 http://dx.doi.org/10.3758/s13423-022-02060-w Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Brief Report Adriano, Andrea Rinaldi, Luca Girelli, Luisa Spatial frequency equalization does not prevent spatial–numerical associations |
title | Spatial frequency equalization does not prevent spatial–numerical associations |
title_full | Spatial frequency equalization does not prevent spatial–numerical associations |
title_fullStr | Spatial frequency equalization does not prevent spatial–numerical associations |
title_full_unstemmed | Spatial frequency equalization does not prevent spatial–numerical associations |
title_short | Spatial frequency equalization does not prevent spatial–numerical associations |
title_sort | spatial frequency equalization does not prevent spatial–numerical associations |
topic | Brief Report |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8821778/ https://www.ncbi.nlm.nih.gov/pubmed/35132580 http://dx.doi.org/10.3758/s13423-022-02060-w |
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