Cargando…

Dissociating between object affordances and spatial compatibility effects using early response components

Perception and action are tightly linked: objects may be perceived not only in terms of visual features, but also in terms of possibilities for action. Previous studies showed that when a centrally located object has a salient graspable feature (e.g., a handle), it facilitates motor responses corres...

Descripción completa

Detalles Bibliográficos
Autores principales: Wilf, Meytal, Holmes, Nicholas P., Schwartz, Isabella, Makin, Tamar R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3761160/
https://www.ncbi.nlm.nih.gov/pubmed/24027552
http://dx.doi.org/10.3389/fpsyg.2013.00591
_version_ 1782282840548835328
author Wilf, Meytal
Holmes, Nicholas P.
Schwartz, Isabella
Makin, Tamar R.
author_facet Wilf, Meytal
Holmes, Nicholas P.
Schwartz, Isabella
Makin, Tamar R.
author_sort Wilf, Meytal
collection PubMed
description Perception and action are tightly linked: objects may be perceived not only in terms of visual features, but also in terms of possibilities for action. Previous studies showed that when a centrally located object has a salient graspable feature (e.g., a handle), it facilitates motor responses corresponding with the feature's position. However, such so-called affordance effects have been criticized as resulting from spatial compatibility effects, due to the visual asymmetry created by the graspable feature, irrespective of any affordances. In order to dissociate between affordance and spatial compatibility effects, we asked participants to perform a simple reaction-time task to typically graspable and non-graspable objects with similar visual features (e.g., lollipop and stop sign). Responses were measured using either electromyography (EMG) on proximal arm muscles during reaching-like movements, or with finger key-presses. In both EMG and button press measurements, participants responded faster when the object was either presented in the same location as the responding hand, or was affordable, resulting in significant and independent spatial compatibility and affordance effects, but no interaction. Furthermore, while the spatial compatibility effect was present from the earliest stages of movement preparation and throughout the different stages of movement execution, the affordance effect was restricted to the early stages of movement execution. Finally, we tested a small group of unilateral arm amputees using EMG, and found residual spatial compatibility but no affordance, suggesting that spatial compatibility effects do not necessarily rely on individuals' available affordances. Our results show dissociation between affordance and spatial compatibility effects, and suggest that rather than evoking the specific motor action most suitable for interaction with the viewed object, graspable objects prompt the motor system in a general, body-part independent fashion.
format Online
Article
Text
id pubmed-3761160
institution National Center for Biotechnology Information
language English
publishDate 2013
publisher Frontiers Media S.A.
record_format MEDLINE/PubMed
spelling pubmed-37611602013-09-11 Dissociating between object affordances and spatial compatibility effects using early response components Wilf, Meytal Holmes, Nicholas P. Schwartz, Isabella Makin, Tamar R. Front Psychol Psychology Perception and action are tightly linked: objects may be perceived not only in terms of visual features, but also in terms of possibilities for action. Previous studies showed that when a centrally located object has a salient graspable feature (e.g., a handle), it facilitates motor responses corresponding with the feature's position. However, such so-called affordance effects have been criticized as resulting from spatial compatibility effects, due to the visual asymmetry created by the graspable feature, irrespective of any affordances. In order to dissociate between affordance and spatial compatibility effects, we asked participants to perform a simple reaction-time task to typically graspable and non-graspable objects with similar visual features (e.g., lollipop and stop sign). Responses were measured using either electromyography (EMG) on proximal arm muscles during reaching-like movements, or with finger key-presses. In both EMG and button press measurements, participants responded faster when the object was either presented in the same location as the responding hand, or was affordable, resulting in significant and independent spatial compatibility and affordance effects, but no interaction. Furthermore, while the spatial compatibility effect was present from the earliest stages of movement preparation and throughout the different stages of movement execution, the affordance effect was restricted to the early stages of movement execution. Finally, we tested a small group of unilateral arm amputees using EMG, and found residual spatial compatibility but no affordance, suggesting that spatial compatibility effects do not necessarily rely on individuals' available affordances. Our results show dissociation between affordance and spatial compatibility effects, and suggest that rather than evoking the specific motor action most suitable for interaction with the viewed object, graspable objects prompt the motor system in a general, body-part independent fashion. Frontiers Media S.A. 2013-09-04 /pmc/articles/PMC3761160/ /pubmed/24027552 http://dx.doi.org/10.3389/fpsyg.2013.00591 Text en Copyright © 2013 Wilf, Holmes, Schwartz and Makin. http://creativecommons.org/licenses/by/3.0/ 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) or licensor 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
Wilf, Meytal
Holmes, Nicholas P.
Schwartz, Isabella
Makin, Tamar R.
Dissociating between object affordances and spatial compatibility effects using early response components
title Dissociating between object affordances and spatial compatibility effects using early response components
title_full Dissociating between object affordances and spatial compatibility effects using early response components
title_fullStr Dissociating between object affordances and spatial compatibility effects using early response components
title_full_unstemmed Dissociating between object affordances and spatial compatibility effects using early response components
title_short Dissociating between object affordances and spatial compatibility effects using early response components
title_sort dissociating between object affordances and spatial compatibility effects using early response components
topic Psychology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3761160/
https://www.ncbi.nlm.nih.gov/pubmed/24027552
http://dx.doi.org/10.3389/fpsyg.2013.00591
work_keys_str_mv AT wilfmeytal dissociatingbetweenobjectaffordancesandspatialcompatibilityeffectsusingearlyresponsecomponents
AT holmesnicholasp dissociatingbetweenobjectaffordancesandspatialcompatibilityeffectsusingearlyresponsecomponents
AT schwartzisabella dissociatingbetweenobjectaffordancesandspatialcompatibilityeffectsusingearlyresponsecomponents
AT makintamarr dissociatingbetweenobjectaffordancesandspatialcompatibilityeffectsusingearlyresponsecomponents