Newborns’ sensitivity to speed changes as a building block for animacy perception

Abstract The human visual system can discriminate between animate beings vs. inanimate objects on the basis of some kinematic cues, such as starting from rest and speed changes by self-propulsion. The ontogenetic origin of such capability is still under debate. Here we investigate for the first time...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Elisa Di Giorgio, Marco Lunghi, Giorgio Vallortigara, Francesca Simion
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6d15b5a4d8e6429eafe2322c8af45856
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:6d15b5a4d8e6429eafe2322c8af45856
record_format	dspace
spelling	oai:doaj.org-article:6d15b5a4d8e6429eafe2322c8af458562021-12-02T14:01:25ZNewborns’ sensitivity to speed changes as a building block for animacy perception10.1038/s41598-020-79451-32045-2322https://doaj.org/article/6d15b5a4d8e6429eafe2322c8af458562021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-79451-3https://doaj.org/toc/2045-2322Abstract The human visual system can discriminate between animate beings vs. inanimate objects on the basis of some kinematic cues, such as starting from rest and speed changes by self-propulsion. The ontogenetic origin of such capability is still under debate. Here we investigate for the first time whether newborns manifest an attentional bias toward objects that abruptly change their speed along a trajectory as contrasted with objects that move at a constant speed. To this end, we systematically manipulated the motion speed of two objects. An object that moves with a constant speed was contrasted with an object that suddenly increases (Experiment 1) or with one that suddenly decreases its speed (Experiment 2). When presented with a single speed change, newborns did not show any visual preference. However, newborns preferred an object that abruptly increases and then decreases its speed (Experiment 3), but they did not show any visual preference for the reverse sequence pattern (Experiment 4). Overall, results are discussed in line with the hypothesis of the existence of attentional biases in newborns that trigger their attention towards some visual cues of motion that characterized animate perception in adults.Elisa Di GiorgioMarco LunghiGiorgio VallortigaraFrancesca SimionNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Elisa Di Giorgio Marco Lunghi Giorgio Vallortigara Francesca Simion Newborns’ sensitivity to speed changes as a building block for animacy perception
description	Abstract The human visual system can discriminate between animate beings vs. inanimate objects on the basis of some kinematic cues, such as starting from rest and speed changes by self-propulsion. The ontogenetic origin of such capability is still under debate. Here we investigate for the first time whether newborns manifest an attentional bias toward objects that abruptly change their speed along a trajectory as contrasted with objects that move at a constant speed. To this end, we systematically manipulated the motion speed of two objects. An object that moves with a constant speed was contrasted with an object that suddenly increases (Experiment 1) or with one that suddenly decreases its speed (Experiment 2). When presented with a single speed change, newborns did not show any visual preference. However, newborns preferred an object that abruptly increases and then decreases its speed (Experiment 3), but they did not show any visual preference for the reverse sequence pattern (Experiment 4). Overall, results are discussed in line with the hypothesis of the existence of attentional biases in newborns that trigger their attention towards some visual cues of motion that characterized animate perception in adults.
format	article
author	Elisa Di Giorgio Marco Lunghi Giorgio Vallortigara Francesca Simion
author_facet	Elisa Di Giorgio Marco Lunghi Giorgio Vallortigara Francesca Simion
author_sort	Elisa Di Giorgio
title	Newborns’ sensitivity to speed changes as a building block for animacy perception
title_short	Newborns’ sensitivity to speed changes as a building block for animacy perception
title_full	Newborns’ sensitivity to speed changes as a building block for animacy perception
title_fullStr	Newborns’ sensitivity to speed changes as a building block for animacy perception
title_full_unstemmed	Newborns’ sensitivity to speed changes as a building block for animacy perception
title_sort	newborns’ sensitivity to speed changes as a building block for animacy perception
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/6d15b5a4d8e6429eafe2322c8af45856
work_keys_str_mv	AT elisadigiorgio newbornssensitivitytospeedchangesasabuildingblockforanimacyperception AT marcolunghi newbornssensitivitytospeedchangesasabuildingblockforanimacyperception AT giorgiovallortigara newbornssensitivitytospeedchangesasabuildingblockforanimacyperception AT francescasimion newbornssensitivitytospeedchangesasabuildingblockforanimacyperception
_version_	1718392146304696320

Newborns’ sensitivity to speed changes as a building block for animacy perception

Ejemplares similares