Orientation sensitivity at different stages of object processing: evidence from repetition priming and naming.

<h4>Background</h4>An ongoing debate in the object recognition literature centers on whether the shape representations used in recognition are coded in an orientation-dependent or orientation-invariant manner. In this study, we asked whether the nature of the object representation (orien...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Irina M Harris, Paul E Dux, Claire T Benito, E Charles Leek
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2008
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ecdcc36d533e405c910a8ab0edc44244
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:ecdcc36d533e405c910a8ab0edc44244
record_format	dspace
spelling	oai:doaj.org-article:ecdcc36d533e405c910a8ab0edc442442021-11-25T06:12:19ZOrientation sensitivity at different stages of object processing: evidence from repetition priming and naming.1932-620310.1371/journal.pone.0002256https://doaj.org/article/ecdcc36d533e405c910a8ab0edc442442008-05-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/18509451/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>An ongoing debate in the object recognition literature centers on whether the shape representations used in recognition are coded in an orientation-dependent or orientation-invariant manner. In this study, we asked whether the nature of the object representation (orientation-dependent vs orientation-invariant) depends on the information-processing stages tapped by the task.<h4>Methodology/findings</h4>We employed a repetition priming paradigm in which briefly presented masked objects (primes) were followed by an upright target object which had to be named as rapidly as possible. The primes were presented for variable durations (ranging from 16 to 350 ms) and in various image-plane orientations (from 0 degrees to 180 degrees, in 30 degrees steps). Significant priming was obtained for prime durations above 70 ms, but not for prime durations of 16 ms and 47 ms, and did not vary as a function of prime orientation. In contrast, naming the same objects that served as primes resulted in orientation-dependent reaction time costs.<h4>Conclusions/significance</h4>These results suggest that initial processing of object identity is mediated by orientation-independent information and that orientation costs in performance arise when objects are consolidated in visual short-term memory in order to be reported.Irina M HarrisPaul E DuxClaire T BenitoE Charles LeekPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 3, Iss 5, p e2256 (2008)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Irina M Harris Paul E Dux Claire T Benito E Charles Leek Orientation sensitivity at different stages of object processing: evidence from repetition priming and naming.
description	<h4>Background</h4>An ongoing debate in the object recognition literature centers on whether the shape representations used in recognition are coded in an orientation-dependent or orientation-invariant manner. In this study, we asked whether the nature of the object representation (orientation-dependent vs orientation-invariant) depends on the information-processing stages tapped by the task.<h4>Methodology/findings</h4>We employed a repetition priming paradigm in which briefly presented masked objects (primes) were followed by an upright target object which had to be named as rapidly as possible. The primes were presented for variable durations (ranging from 16 to 350 ms) and in various image-plane orientations (from 0 degrees to 180 degrees, in 30 degrees steps). Significant priming was obtained for prime durations above 70 ms, but not for prime durations of 16 ms and 47 ms, and did not vary as a function of prime orientation. In contrast, naming the same objects that served as primes resulted in orientation-dependent reaction time costs.<h4>Conclusions/significance</h4>These results suggest that initial processing of object identity is mediated by orientation-independent information and that orientation costs in performance arise when objects are consolidated in visual short-term memory in order to be reported.
format	article
author	Irina M Harris Paul E Dux Claire T Benito E Charles Leek
author_facet	Irina M Harris Paul E Dux Claire T Benito E Charles Leek
author_sort	Irina M Harris
title	Orientation sensitivity at different stages of object processing: evidence from repetition priming and naming.
title_short	Orientation sensitivity at different stages of object processing: evidence from repetition priming and naming.
title_full	Orientation sensitivity at different stages of object processing: evidence from repetition priming and naming.
title_fullStr	Orientation sensitivity at different stages of object processing: evidence from repetition priming and naming.
title_full_unstemmed	Orientation sensitivity at different stages of object processing: evidence from repetition priming and naming.
title_sort	orientation sensitivity at different stages of object processing: evidence from repetition priming and naming.
publisher	Public Library of Science (PLoS)
publishDate	2008
url	https://doaj.org/article/ecdcc36d533e405c910a8ab0edc44244
work_keys_str_mv	AT irinamharris orientationsensitivityatdifferentstagesofobjectprocessingevidencefromrepetitionprimingandnaming AT pauledux orientationsensitivityatdifferentstagesofobjectprocessingevidencefromrepetitionprimingandnaming AT clairetbenito orientationsensitivityatdifferentstagesofobjectprocessingevidencefromrepetitionprimingandnaming AT echarlesleek orientationsensitivityatdifferentstagesofobjectprocessingevidencefromrepetitionprimingandnaming
_version_	1718414079042781184

Orientation sensitivity at different stages of object processing: evidence from repetition priming and naming.

Ejemplares similares