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The influence of viewpoint and object detail in blind people when matching pictures to complex objects.

Identifieur interne : 001211 ( PubMed/Corpus ); précédent : 001210; suivant : 001212

The influence of viewpoint and object detail in blind people when matching pictures to complex objects.

Auteurs : Morton A. Heller ; Tara Riddle ; Erin Fulkerson ; Lindsay Wemple ; Anne Mcclure Walk ; Stephanie Guthrie ; Crystal Kranz ; Patricia Klaus

Source :

Perception [ 0301-0066 ] ; 2009.

RBID : pubmed:19817155

English descriptors

KwdEn :
- Adult, Blindness (psychology), Depth Perception (physiology), Female, Humans, Male, Middle Aged, Psychomotor Performance, Psychophysics, Sensory Deprivation (physiology), Stereognosis (physiology), Touch, Vision, Low (psychology), Young Adult.
MESH :
- physiology : Depth Perception, Sensory Deprivation, Stereognosis.
- psychology : Blindness, Vision, Low.
- Adult, Female, Humans, Male, Middle Aged, Psychomotor Performance, Psychophysics, Touch, Young Adult.

Abstract

We examined haptic viewpoint effects in blindfolded-sighted (BS) and visually impaired subjects: early blind (EB), late blind (LB), and very low vision (VLV). Participants felt complex objects and matched tangible pictures to them. In experiment 1, the EB and BS subjects had similar overall performance. Experiment 2 showed that the presence of a detail on the target object lowered performance in the BS subjects, and that matching accuracy was lower overall for top views for the blind subjects. In experiments 3-5, EB, LB, VLV, and BS subjects made judgments about perspective pictures of a model house with more salient object details. In experiment 3, performance was higher for side views than for corner views. Elevated side views were identified more readily than elevated corner views in experiment 4. Performance for top views was higher than for elevated side views in experiment 5, given the relative simplicity of the top-view depictions and salient details. The EB and BS participants had somewhat lower matching accuracy scores than the other groups. We suggest that visual experience is helpful, but not essential for picture perception. Viewpoint effects may vary with experience and object complexity, but the relevant experience need not be specifically visual in nature.

PubMed: 19817155

Links to Exploration step

pubmed:19817155

Le document en format XML

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<author><name sortKey="Heller, Morton A" sort="Heller, Morton A" uniqKey="Heller M" first="Morton A" last="Heller">Morton A. Heller</name>
<affiliation><nlm:affiliation>Department of Psychology, Eastern Illinois University, Physical Sciences Building, Charleston, IL 61920, USA. maheller@eiu.edu</nlm:affiliation>
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<author><name sortKey="Riddle, Tara" sort="Riddle, Tara" uniqKey="Riddle T" first="Tara" last="Riddle">Tara Riddle</name>
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<author><name sortKey="Fulkerson, Erin" sort="Fulkerson, Erin" uniqKey="Fulkerson E" first="Erin" last="Fulkerson">Erin Fulkerson</name>
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<author><name sortKey="Wemple, Lindsay" sort="Wemple, Lindsay" uniqKey="Wemple L" first="Lindsay" last="Wemple">Lindsay Wemple</name>
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<author><name sortKey="Walk, Anne Mcclure" sort="Walk, Anne Mcclure" uniqKey="Walk A" first="Anne Mcclure" last="Walk">Anne Mcclure Walk</name>
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<author><name sortKey="Guthrie, Stephanie" sort="Guthrie, Stephanie" uniqKey="Guthrie S" first="Stephanie" last="Guthrie">Stephanie Guthrie</name>
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<author><name sortKey="Kranz, Crystal" sort="Kranz, Crystal" uniqKey="Kranz C" first="Crystal" last="Kranz">Crystal Kranz</name>
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<author><name sortKey="Klaus, Patricia" sort="Klaus, Patricia" uniqKey="Klaus P" first="Patricia" last="Klaus">Patricia Klaus</name>
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<author><name sortKey="Kranz, Crystal" sort="Kranz, Crystal" uniqKey="Kranz C" first="Crystal" last="Kranz">Crystal Kranz</name>
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<series><title level="j">Perception</title>
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<term>Male</term>
<term>Middle Aged</term>
<term>Psychomotor Performance</term>
<term>Psychophysics</term>
<term>Sensory Deprivation (physiology)</term>
<term>Stereognosis (physiology)</term>
<term>Touch</term>
<term>Vision, Low (psychology)</term>
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<term>Female</term>
<term>Humans</term>
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<front><div type="abstract" xml:lang="en">We examined haptic viewpoint effects in blindfolded-sighted (BS) and visually impaired subjects: early blind (EB), late blind (LB), and very low vision (VLV). Participants felt complex objects and matched tangible pictures to them. In experiment 1, the EB and BS subjects had similar overall performance. Experiment 2 showed that the presence of a detail on the target object lowered performance in the BS subjects, and that matching accuracy was lower overall for top views for the blind subjects. In experiments 3-5, EB, LB, VLV, and BS subjects made judgments about perspective pictures of a model house with more salient object details. In experiment 3, performance was higher for side views than for corner views. Elevated side views were identified more readily than elevated corner views in experiment 4. Performance for top views was higher than for elevated side views in experiment 5, given the relative simplicity of the top-view depictions and salient details. The EB and BS participants had somewhat lower matching accuracy scores than the other groups. We suggest that visual experience is helpful, but not essential for picture perception. Viewpoint effects may vary with experience and object complexity, but the relevant experience need not be specifically visual in nature.</div>
</front>
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<Title>Perception</Title>
<ISOAbbreviation>Perception</ISOAbbreviation>
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<ArticleTitle>The influence of viewpoint and object detail in blind people when matching pictures to complex objects.</ArticleTitle>
<Pagination><MedlinePgn>1234-50</MedlinePgn>
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<Abstract><AbstractText>We examined haptic viewpoint effects in blindfolded-sighted (BS) and visually impaired subjects: early blind (EB), late blind (LB), and very low vision (VLV). Participants felt complex objects and matched tangible pictures to them. In experiment 1, the EB and BS subjects had similar overall performance. Experiment 2 showed that the presence of a detail on the target object lowered performance in the BS subjects, and that matching accuracy was lower overall for top views for the blind subjects. In experiments 3-5, EB, LB, VLV, and BS subjects made judgments about perspective pictures of a model house with more salient object details. In experiment 3, performance was higher for side views than for corner views. Elevated side views were identified more readily than elevated corner views in experiment 4. Performance for top views was higher than for elevated side views in experiment 5, given the relative simplicity of the top-view depictions and salient details. The EB and BS participants had somewhat lower matching accuracy scores than the other groups. We suggest that visual experience is helpful, but not essential for picture perception. Viewpoint effects may vary with experience and object complexity, but the relevant experience need not be specifically visual in nature.</AbstractText>
</Abstract>
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<QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName>
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<MeshHeading><DescriptorName MajorTopicYN="N" UI="D014110">Touch</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName MajorTopicYN="N" UI="D015354">Vision, Low</DescriptorName>
<QualifierName MajorTopicYN="Y" UI="Q000523">psychology</QualifierName>
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<MeshHeading><DescriptorName MajorTopicYN="N" UI="D055815">Young Adult</DescriptorName>
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The influence of viewpoint and object detail in blind people when matching pictures to complex objects.

The influence of viewpoint and object detail in blind people when matching pictures to complex objects.

Source :

English descriptors

Abstract

Links to Exploration step

Le document en format XML

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