Short-Term Visual Deprivation, Tactile Acuity, and Haptic Solid Shape Discrimination
Identifieur interne : 000E41 ( Main/Merge ); précédent : 000E40; suivant : 000E42Short-Term Visual Deprivation, Tactile Acuity, and Haptic Solid Shape Discrimination
Auteurs : Charles E. Crabtree ; J. Farley NormanSource :
- PLoS ONE [ 1932-6203 ] ; 2014.
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Abstract
Previous psychophysical studies have reported conflicting results concerning the effects of short-term visual deprivation upon tactile acuity. Some studies have found that 45 to 90 minutes of total light deprivation produce significant improvements in participants' tactile acuity as measured with a grating orientation discrimination task. In contrast, a single 2011 study found no such improvement while attempting to replicate these earlier findings. A primary goal of the current experiment was to resolve this discrepancy in the literature by evaluating the effects of a 90-minute period of total light deprivation upon tactile grating orientation discrimination. We also evaluated the potential effect of short-term deprivation upon haptic 3-D shape discrimination using a set of naturally-shaped solid objects. According to previous research, short-term deprivation enhances performance in a tactile 2-D shape discrimination task – perhaps a similar improvement also occurs for haptic 3-D shape discrimination. The results of the current investigation demonstrate that not only does short-term visual deprivation not enhance tactile acuity, it additionally has no effect upon haptic 3-D shape discrimination. While visual deprivation had no effect in our study, there was a significant effect of experience and learning for the grating orientation task – the participants' tactile acuity improved over time, independent of whether they had, or had not, experienced visual deprivation.
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DOI: 10.1371/journal.pone.0112828
PubMed: 25397327
PubMed Central: 4232490
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Short-Term Visual Deprivation, Tactile Acuity, and Haptic Solid Shape Discrimination</title><author><name sortKey="Crabtree, Charles E" sort="Crabtree, Charles E" uniqKey="Crabtree C" first="Charles E." last="Crabtree">Charles E. Crabtree</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Norman, J Farley" sort="Norman, J Farley" uniqKey="Norman J" first="J. Farley" last="Norman">J. Farley Norman</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">25397327</idno><idno type="pmc">4232490</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4232490</idno><idno type="RBID">PMC:4232490</idno><idno type="doi">10.1371/journal.pone.0112828</idno><date when="2014">2014</date><idno type="wicri:Area/Pmc/Corpus">000357</idno><idno type="wicri:Area/Pmc/Curation">000357</idno><idno type="wicri:Area/Pmc/Checkpoint">000950</idno><idno type="wicri:source">PubMed</idno><idno type="wicri:Area/PubMed/Corpus">000501</idno><idno type="wicri:Area/PubMed/Curation">000501</idno><idno type="wicri:Area/PubMed/Checkpoint">000538</idno><idno type="wicri:Area/Ncbi/Merge">003446</idno><idno type="wicri:Area/Ncbi/Curation">003446</idno><idno type="wicri:Area/Ncbi/Checkpoint">003446</idno><idno type="wicri:Area/Main/Merge">000E41</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Short-Term Visual Deprivation, Tactile Acuity, and Haptic Solid Shape Discrimination</title><author><name sortKey="Crabtree, Charles E" sort="Crabtree, Charles E" uniqKey="Crabtree C" first="Charles E." last="Crabtree">Charles E. Crabtree</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Norman, J Farley" sort="Norman, J Farley" uniqKey="Norman J" first="J. Farley" last="Norman">J. Farley Norman</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author></analytic><series><title level="j">PLoS ONE</title><idno type="eISSN">1932-6203</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Discrimination (Psychology) (physiology)</term><term>Humans</term><term>Learning (physiology)</term><term>Pattern Recognition, Physiological (physiology)</term><term>Sensory Deprivation (physiology)</term><term>Time Factors</term><term>Vision, Ocular (physiology)</term><term>Young Adult</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Discrimination (Psychology)</term><term>Learning</term><term>Pattern Recognition, Physiological</term><term>Sensory Deprivation</term><term>Vision, Ocular</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Humans</term><term>Time Factors</term><term>Young Adult</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Previous psychophysical studies have reported conflicting results concerning the effects of short-term visual deprivation upon tactile acuity. Some studies have found that 45 to 90 minutes of total light deprivation produce significant improvements in participants' tactile acuity as measured with a grating orientation discrimination task. In contrast, a single 2011 study found no such improvement while attempting to replicate these earlier findings. A primary goal of the current experiment was to resolve this discrepancy in the literature by evaluating the effects of a 90-minute period of total light deprivation upon tactile grating orientation discrimination. We also evaluated the potential effect of short-term deprivation upon haptic 3-D shape discrimination using a set of naturally-shaped solid objects. According to previous research, short-term deprivation enhances performance in a tactile 2-D shape discrimination task – perhaps a similar improvement also occurs for haptic 3-D shape discrimination. The results of the current investigation demonstrate that not only does short-term visual deprivation not enhance tactile acuity, it additionally has no effect upon haptic 3-D shape discrimination. While visual deprivation had no effect in our study, there was a significant effect of experience and learning for the grating orientation task – the participants' tactile acuity improved over time, independent of whether they had, or had not, experienced visual deprivation.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Van Essen, Dc" uniqKey="Van Essen D">DC Van Essen</name></author><author><name sortKey="Maunsell, Jhr" uniqKey="Maunsell J">JHR Maunsell</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Felleman, Dj" uniqKey="Felleman D">DJ Felleman</name></author><author><name sortKey="Van Essen, Dc" uniqKey="Van Essen D">DC Van Essen</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kaas, Jh" uniqKey="Kaas J">JH Kaas</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kahn, Dm" 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