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The role of part structure in the perceptual localization of a shape

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TitleInfo
Title
The role of part structure in the perceptual localization of a shape
Name (type = personal)
NamePart (type = family)
Denisova
NamePart (type = given)
Kristina
Affiliation
Psychology (New Brunswick), Rutgers University
Role
RoleTerm (authority = marcrt); (type = text)
author
Name (type = personal)
NamePart (type = family)
Singh
NamePart (type = given)
Manish
Affiliation
Psychology (New Brunswick), Rutgers University
Role
RoleTerm (authority = marcrt); (type = text)
author
Name (type = personal)
NamePart (type = family)
Kowler
NamePart (type = given)
Eileen
Affiliation
Psychology (New Brunswick), Rutgers University
Role
RoleTerm (authority = marcrt); (type = text)
author
Name (authority = RutgersOrg-Department); (type = corporate)
NamePart
Psychology (New Brunswick)
Name (authority = RutgersOrg-School); (type = corporate)
NamePart
School of Arts and Sciences (SAS) (New Brunswick)
Name (type = corporate)
NamePart
National Science Foundation
Role
RoleTerm (authority = marcRelator)
Sponsor
Name (type = corporate)
NamePart
United States. Air Force. Office of Sponsored Research
Role
RoleTerm (authority = marcRelator)
Sponsor
TypeOfResource
Text
Genre (authority = RULIB-FS)
articles
Genre (authority = NISO JAV)
Version of Record (VoR)
Genre (authority = ExL-Esploro)
Journal Article
OriginInfo
DateCreated (encoding = w3cdtf); (keyDate = yes); (qualifier = exact)
2006
Publisher
Pion Ltd.
Language
LanguageTerm
English
PhysicalDescription
Form (authority = RULIB)
manuscript
InternetMediaType
application/pdf
Extent
17 pages
Abstract
The process of object localization may be accomplished with respect to a particularreference location, such as the center of gravity, COG (eg Vishwanath and Kowler, 2003 VisionResearch 43 1637-1653). Here, we investigated how part structure affects an object's referencelocation. The reference location was evaluated with a measure of the illusory displacement of an internal target element embedded within a larger object (Morgan et al, 1990 Vision Research 30 1793-1810). To examine whether the reference location is different for shapes with part structure, two shapes were tested: circle (small and large; no part structure) and bell (shape with two parts, one larger than the other). Results were examined with respect to two predictions: either the location of an object is based on its shape as a whole, disregarding part structure (ie a single, overall COG), or the parts are processed separately (different COGs).With the circles, the results showed a systematic illusory displacement of the internal target toward the COG. With the bell, the illusion was significantly weaker than with both circles--even though the main part of the bell had the same size as the small circle, and its horizontal axis had the same extent as the large circle. Moreover, the distance judgments for the bell were consistent with a (weaker) reference point being located at the COG of the larger part, rather than at the COG of the entire bell. These results show that the part structure of a shape plays a role in the representation of its location, and that for complex shapes the perceived location of an embedded element depends more on the parts within which it is embedded, rather than on the whole shape.
Note
Supported by the Air Force Office of Scientific Research, Grant AF 49620- 02-1-0112, Life Sciences Directorate to Eileen Kowler, and by NSF, Grant BCS-0216944 to Manish Singh.
Note (type = grantNumber)
AF 29620-02-1-0112; to Eileen Kowler
Note (type = grantNumber)
NSF BCS-0216944; to Manish Singh
Note (type = citation/reference)
Denisova, Kristina, Manish Singh, Eileen Kowler, 2006. The definitive, peer-reviewed and edited version of this article is published in Perception, 35, 1073-1087, DOI:10.1068/p5518.
Subject (authority = Other)
Topic
Eye movements
Subject (authority = Other)
Topic
Reference location
Subject (authority = LCSH)
Topic
Center of mass
Subject (authority = LCSH)
Topic
Saccadic eye movements
RelatedItem (type = host)
TitleInfo
Title
Kowler, Eileen
Identifier (type = local)
rucore00000001148
Identifier (type = hdl)
http://hdl.rutgers.edu/1782.2/rucore00000001148.Article.17072
Identifier (type = doi)
doi:10.7282/T3639N42
Location
PhysicalLocation (authority = marcorg); (displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Extension
DescriptiveEvent
Type
Citation
DateTime (encoding = w3cdtf)
2006
AssociatedObject
Type
Journal
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Name
Perception
Identifier (type = volume and issue)
35(8)
Reference (type = digital)
http://dx.doi.org/10.1068/p5518
Detail
1073-1087
Extension
DescriptiveEvent
Type
Grant award
AssociatedEntity
Role
Funder
Name
Air Force Office of Scientific Research
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Role
Originator
Name
Eileen Kowler
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Type
Grant number
Name
AF 29620-02-1-0112
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Type
Grant number
Name
AF 49620-02-1-0112
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DescriptiveEvent
Type
Grant award
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Role
Funder
Name
National Science Foundation
AssociatedEntity
Role
Originator
Name
Manish Singh
AssociatedObject
Type
Grant number
Name
NSF BCS-0216944
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RightsDeclaration (AUTHORITY = FS); (ID = rulibRdec0004)
Copyright for scholarly resources published in RUcore is retained by the copyright holder. By virtue of its appearance in this open access medium, you are free to use this resource, with proper attribution, in educational and other non-commercial settings. Other uses, such as reproduction or republication, may require the permission of the copyright holder.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
RightsHolder (ID = 1)
Name (TYPE = corporate)
CorporateName
Pion Ltd.
RightsEvent (AUTHORITY = rulib); (ID = 1)
Type
Permission or license
AssociatedEntity (AUTHORITY = rulib); (ID = 1)
Name
Eileen Kowler
Role
Depositor
AssociatedObject (AUTHORITY = rulib); (ID = 1)
Type
License
Detail
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