Perception of biological motion by jumping spiders.

The body of most creatures is composed of interconnected joints. During motion, the spatial location of these joints changes, but they must maintain their distances to one another, effectively moving semirigidly. This pattern, termed "biological motion" in the literature, can be used as a...

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Autores principales:	Massimo De Agrò, Daniela C Rößler, Kris Kim, Paul S Shamble
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/d748e1ee887f47e98c7e5d7aab13eef8
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id	oai:doaj.org-article:d748e1ee887f47e98c7e5d7aab13eef8
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spelling	oai:doaj.org-article:d748e1ee887f47e98c7e5d7aab13eef82021-12-02T19:54:23ZPerception of biological motion by jumping spiders.1544-91731545-788510.1371/journal.pbio.3001172https://doaj.org/article/d748e1ee887f47e98c7e5d7aab13eef82021-07-01T00:00:00Zhttps://doi.org/10.1371/journal.pbio.3001172https://doaj.org/toc/1544-9173https://doaj.org/toc/1545-7885The body of most creatures is composed of interconnected joints. During motion, the spatial location of these joints changes, but they must maintain their distances to one another, effectively moving semirigidly. This pattern, termed "biological motion" in the literature, can be used as a visual cue, enabling many animals (including humans) to distinguish animate from inanimate objects. Crucially, even artificially created scrambled stimuli, with no recognizable structure but that maintains semirigid movement patterns, are perceived as animated. However, to date, biological motion perception has only been reported in vertebrates. Due to their highly developed visual system and complex visual behaviors, we investigated the capability of jumping spiders to discriminate biological from nonbiological motion using point-light display stimuli. These kinds of stimuli maintain motion information while being devoid of structure. By constraining spiders on a spherical treadmill, we simultaneously presented 2 point-light displays with specific dynamic traits and registered their preference by observing which pattern they turned toward. Spiders clearly demonstrated the ability to discriminate between biological motion and random stimuli, but curiously turned preferentially toward the latter. However, they showed no preference between biological and scrambled displays, results that match responses produced by vertebrates. Crucially, spiders turned toward the stimuli when these were only visible by the lateral eyes, evidence that this task may be eye specific. This represents the first demonstration of biological motion recognition in an invertebrate, posing crucial questions about the evolutionary history of this ability and complex visual processing in nonvertebrate systems.Massimo De AgròDaniela C RößlerKris KimPaul S ShamblePublic Library of Science (PLoS)articleBiology (General)QH301-705.5ENPLoS Biology, Vol 19, Iss 7, p e3001172 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biology (General) QH301-705.5
spellingShingle	Biology (General) QH301-705.5 Massimo De Agrò Daniela C Rößler Kris Kim Paul S Shamble Perception of biological motion by jumping spiders.
description	The body of most creatures is composed of interconnected joints. During motion, the spatial location of these joints changes, but they must maintain their distances to one another, effectively moving semirigidly. This pattern, termed "biological motion" in the literature, can be used as a visual cue, enabling many animals (including humans) to distinguish animate from inanimate objects. Crucially, even artificially created scrambled stimuli, with no recognizable structure but that maintains semirigid movement patterns, are perceived as animated. However, to date, biological motion perception has only been reported in vertebrates. Due to their highly developed visual system and complex visual behaviors, we investigated the capability of jumping spiders to discriminate biological from nonbiological motion using point-light display stimuli. These kinds of stimuli maintain motion information while being devoid of structure. By constraining spiders on a spherical treadmill, we simultaneously presented 2 point-light displays with specific dynamic traits and registered their preference by observing which pattern they turned toward. Spiders clearly demonstrated the ability to discriminate between biological motion and random stimuli, but curiously turned preferentially toward the latter. However, they showed no preference between biological and scrambled displays, results that match responses produced by vertebrates. Crucially, spiders turned toward the stimuli when these were only visible by the lateral eyes, evidence that this task may be eye specific. This represents the first demonstration of biological motion recognition in an invertebrate, posing crucial questions about the evolutionary history of this ability and complex visual processing in nonvertebrate systems.
format	article
author	Massimo De Agrò Daniela C Rößler Kris Kim Paul S Shamble
author_facet	Massimo De Agrò Daniela C Rößler Kris Kim Paul S Shamble
author_sort	Massimo De Agrò
title	Perception of biological motion by jumping spiders.
title_short	Perception of biological motion by jumping spiders.
title_full	Perception of biological motion by jumping spiders.
title_fullStr	Perception of biological motion by jumping spiders.
title_full_unstemmed	Perception of biological motion by jumping spiders.
title_sort	perception of biological motion by jumping spiders.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/d748e1ee887f47e98c7e5d7aab13eef8
work_keys_str_mv	AT massimodeagro perceptionofbiologicalmotionbyjumpingspiders AT danielacroßler perceptionofbiologicalmotionbyjumpingspiders AT kriskim perceptionofbiologicalmotionbyjumpingspiders AT paulsshamble perceptionofbiologicalmotionbyjumpingspiders
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Perception of biological motion by jumping spiders.

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