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Peripersonal and reaching space differ: Evidence from their spatial extent and multisensory facilitation pattern
Peripersonal space (PPS) is a multisensory representation of the space near body parts facilitating interactions with the close environment. Studies on non-human and human primates agree in showing that PPS is a body part-centered representation that guides actions. Because of these characteristics,...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer US
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8642341/ https://www.ncbi.nlm.nih.gov/pubmed/34159525 http://dx.doi.org/10.3758/s13423-021-01942-9 |
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author | Zanini, A. Patané, I. Blini, E. Salemme, R. Koun, E. Farnè, A. Brozzoli, C. |
author_facet | Zanini, A. Patané, I. Blini, E. Salemme, R. Koun, E. Farnè, A. Brozzoli, C. |
author_sort | Zanini, A. |
collection | PubMed |
description | Peripersonal space (PPS) is a multisensory representation of the space near body parts facilitating interactions with the close environment. Studies on non-human and human primates agree in showing that PPS is a body part-centered representation that guides actions. Because of these characteristics, growing confusion surrounds peripersonal and arm-reaching space (ARS), that is the space one’s arm can reach. Despite neuroanatomical evidence favoring their distinction, no study has contrasted directly their respective extent and behavioral features. Here, in five experiments (N = 140) we found that PPS differs from ARS, as evidenced both by participants’ spatial and temporal performance and by its modeling. We mapped PPS and ARS using both their respective gold standard tasks and a novel multisensory facilitation paradigm. Results show that: (1) PPS is smaller than ARS; (2) multivariate analyses of spatial patterns of multisensory facilitation predict participants’ hand locations within ARS; and (3) the multisensory facilitation map shifts isomorphically following hand positions, revealing hand-centered coding of PPS, therefore pointing to a functional similarity to the receptive fields of monkeys’ multisensory neurons. A control experiment further corroborated these results and additionally ruled out the orienting of attention as the driving mechanism for the increased multisensory facilitation near the hand. In sharp contrast, ARS mapping results in a larger spatial extent, with undistinguishable patterns across hand positions, cross-validating the conclusion that PPS and ARS are distinct spatial representations. These findings show a need for refinement of theoretical models of PPS, which is relevant to constructs as diverse as self-representation, social interpersonal distance, and motor control. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.3758/s13423-021-01942-9. |
format | Online Article Text |
id | pubmed-8642341 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
spelling | pubmed-86423412021-12-17 Peripersonal and reaching space differ: Evidence from their spatial extent and multisensory facilitation pattern Zanini, A. Patané, I. Blini, E. Salemme, R. Koun, E. Farnè, A. Brozzoli, C. Psychon Bull Rev Brief Report Peripersonal space (PPS) is a multisensory representation of the space near body parts facilitating interactions with the close environment. Studies on non-human and human primates agree in showing that PPS is a body part-centered representation that guides actions. Because of these characteristics, growing confusion surrounds peripersonal and arm-reaching space (ARS), that is the space one’s arm can reach. Despite neuroanatomical evidence favoring their distinction, no study has contrasted directly their respective extent and behavioral features. Here, in five experiments (N = 140) we found that PPS differs from ARS, as evidenced both by participants’ spatial and temporal performance and by its modeling. We mapped PPS and ARS using both their respective gold standard tasks and a novel multisensory facilitation paradigm. Results show that: (1) PPS is smaller than ARS; (2) multivariate analyses of spatial patterns of multisensory facilitation predict participants’ hand locations within ARS; and (3) the multisensory facilitation map shifts isomorphically following hand positions, revealing hand-centered coding of PPS, therefore pointing to a functional similarity to the receptive fields of monkeys’ multisensory neurons. A control experiment further corroborated these results and additionally ruled out the orienting of attention as the driving mechanism for the increased multisensory facilitation near the hand. In sharp contrast, ARS mapping results in a larger spatial extent, with undistinguishable patterns across hand positions, cross-validating the conclusion that PPS and ARS are distinct spatial representations. These findings show a need for refinement of theoretical models of PPS, which is relevant to constructs as diverse as self-representation, social interpersonal distance, and motor control. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.3758/s13423-021-01942-9. Springer US 2021-06-22 2021 /pmc/articles/PMC8642341/ /pubmed/34159525 http://dx.doi.org/10.3758/s13423-021-01942-9 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This 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 Zanini, A. Patané, I. Blini, E. Salemme, R. Koun, E. Farnè, A. Brozzoli, C. Peripersonal and reaching space differ: Evidence from their spatial extent and multisensory facilitation pattern |
title | Peripersonal and reaching space differ: Evidence from their spatial extent and multisensory facilitation pattern |
title_full | Peripersonal and reaching space differ: Evidence from their spatial extent and multisensory facilitation pattern |
title_fullStr | Peripersonal and reaching space differ: Evidence from their spatial extent and multisensory facilitation pattern |
title_full_unstemmed | Peripersonal and reaching space differ: Evidence from their spatial extent and multisensory facilitation pattern |
title_short | Peripersonal and reaching space differ: Evidence from their spatial extent and multisensory facilitation pattern |
title_sort | peripersonal and reaching space differ: evidence from their spatial extent and multisensory facilitation pattern |
topic | Brief Report |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8642341/ https://www.ncbi.nlm.nih.gov/pubmed/34159525 http://dx.doi.org/10.3758/s13423-021-01942-9 |
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