Mid-fusiform Activation during Object Discrimination Reflects the Process of Differentiating Structural Descriptions
Identifieur interne : 004B10 ( Main/Curation ); précédent : 004B09; suivant : 004B11Mid-fusiform Activation during Object Discrimination Reflects the Process of Differentiating Structural Descriptions
Auteurs : Xun Liu ; Nicholas A. Steinmetz ; Alison B. Farley ; Charles D. Smith ; Jane E. JosephSource :
- Journal of cognitive neuroscience [ 0898-929X ] ; 2008.
Abstract
The present study explored constraints on mid-fusiform activation during object discrimination. In three experiments, participants performed a matching task on simple line configurations, nameable objects, three dimensional (3-D) shapes, and colors. Significant bilateral mid-fusiform activation emerged when participants matched objects and 3-D shapes, as compared to when they matched two-dimensional (2-D) line configurations and colors, indicating that the mid-fusiform is engaged more strongly for processing structural descriptions (e.g., comparing 3-D volumetric shape) than perceptual descriptions (e.g., comparing 2-D or color information). In two of the experiments, the same mid-fusiform regions were also modulated by the degree of structural similarity between stimuli, implicating a role for the mid-fusiform in fine differentiation of similar visual object representations. Importantly, however, this process of fine differentiation occurred at the level of structural, but not perceptual, descriptions. Moreover, mid-fusiform activity was more robust when participants matched shape compared to color information using the identical stimuli, indicating that activity in the mid-fusiform gyrus is not driven by specific stimulus properties, but rather by the process of distinguishing stimuli based on shape information. Taken together, these findings further clarify the nature of object processing in the mid-fusiform gyrus. This region is engaged specifically in structural differentiation, a critical component process of object recognition and categorization.
Url:
DOI: 10.1162/jocn.2008.20116
PubMed: 18345986
PubMed Central: 2675283
Links toward previous steps (curation, corpus...)
- to stream Pmc, to step Corpus: Pour aller vers cette notice dans l'étape Curation :001033
- to stream Pmc, to step Curation: Pour aller vers cette notice dans l'étape Curation :001033
- to stream Pmc, to step Checkpoint: Pour aller vers cette notice dans l'étape Curation :002313
- to stream Ncbi, to step Merge: Pour aller vers cette notice dans l'étape Curation :000D77
- to stream Ncbi, to step Curation: Pour aller vers cette notice dans l'étape Curation :000D77
- to stream Ncbi, to step Checkpoint: Pour aller vers cette notice dans l'étape Curation :000D77
- to stream Main, to step Merge: Pour aller vers cette notice dans l'étape Curation :004C10
Links to Exploration step
PMC:2675283Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Mid-fusiform Activation during Object Discrimination Reflects the Process of Differentiating Structural Descriptions</title><author><name sortKey="Liu, Xun" sort="Liu, Xun" uniqKey="Liu X" first="Xun" last="Liu">Xun Liu</name></author><author><name sortKey="Steinmetz, Nicholas A" sort="Steinmetz, Nicholas A" uniqKey="Steinmetz N" first="Nicholas A." last="Steinmetz">Nicholas A. Steinmetz</name></author><author><name sortKey="Farley, Alison B" sort="Farley, Alison B" uniqKey="Farley A" first="Alison B." last="Farley">Alison B. Farley</name></author><author><name sortKey="Smith, Charles D" sort="Smith, Charles D" uniqKey="Smith C" first="Charles D." last="Smith">Charles D. Smith</name></author><author><name sortKey="Joseph, Jane E" sort="Joseph, Jane E" uniqKey="Joseph J" first="Jane E." last="Joseph">Jane E. Joseph</name></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">18345986</idno><idno type="pmc">2675283</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2675283</idno><idno type="RBID">PMC:2675283</idno><idno type="doi">10.1162/jocn.2008.20116</idno><date when="2008">2008</date><idno type="wicri:Area/Pmc/Corpus">001033</idno><idno type="wicri:Area/Pmc/Curation">001033</idno><idno type="wicri:Area/Pmc/Checkpoint">002313</idno><idno type="wicri:Area/Ncbi/Merge">000D77</idno><idno type="wicri:Area/Ncbi/Curation">000D77</idno><idno type="wicri:Area/Ncbi/Checkpoint">000D77</idno><idno type="wicri:doubleKey">0898-929X:2008:Liu X:mid:fusiform:activation</idno><idno type="wicri:Area/Main/Merge">004C10</idno><idno type="wicri:Area/Main/Curation">004B10</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Mid-fusiform Activation during Object Discrimination Reflects the Process of Differentiating Structural Descriptions</title><author><name sortKey="Liu, Xun" sort="Liu, Xun" uniqKey="Liu X" first="Xun" last="Liu">Xun Liu</name></author><author><name sortKey="Steinmetz, Nicholas A" sort="Steinmetz, Nicholas A" uniqKey="Steinmetz N" first="Nicholas A." last="Steinmetz">Nicholas A. Steinmetz</name></author><author><name sortKey="Farley, Alison B" sort="Farley, Alison B" uniqKey="Farley A" first="Alison B." last="Farley">Alison B. Farley</name></author><author><name sortKey="Smith, Charles D" sort="Smith, Charles D" uniqKey="Smith C" first="Charles D." last="Smith">Charles D. Smith</name></author><author><name sortKey="Joseph, Jane E" sort="Joseph, Jane E" uniqKey="Joseph J" first="Jane E." last="Joseph">Jane E. Joseph</name></author></analytic><series><title level="j">Journal of cognitive neuroscience</title><idno type="ISSN">0898-929X</idno><idno type="eISSN">1530-8898</idno><imprint><date when="2008">2008</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p id="P1">The present study explored constraints on mid-fusiform activation during object discrimination. In three experiments, participants performed a matching task on simple line configurations, nameable objects, three dimensional (3-D) shapes, and colors. Significant bilateral mid-fusiform activation emerged when participants matched objects and 3-D shapes, as compared to when they matched two-dimensional (2-D) line configurations and colors, indicating that the mid-fusiform is engaged more strongly for processing structural descriptions (e.g., comparing 3-D volumetric shape) than perceptual descriptions (e.g., comparing 2-D or color information). In two of the experiments, the same mid-fusiform regions were also modulated by the degree of structural similarity between stimuli, implicating a role for the mid-fusiform in fine differentiation of similar visual object representations. Importantly, however, this process of fine differentiation occurred at the level of structural, but not perceptual, descriptions. Moreover, mid-fusiform activity was more robust when participants matched shape compared to color information using the identical stimuli, indicating that activity in the mid-fusiform gyrus is not driven by specific stimulus properties, but rather by the process of distinguishing stimuli based on shape information. Taken together, these findings further clarify the nature of object processing in the mid-fusiform gyrus. This region is engaged specifically in structural differentiation, a critical component process of object recognition and categorization.</p></div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Ticri/CIDE/explor/HapticV1/Data/Main/Curation
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 004B10 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Curation/biblio.hfd -nk 004B10 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Ticri/CIDE
|area= HapticV1
|flux= Main
|étape= Curation
|type= RBID
|clé= PMC:2675283
|texte= Mid-fusiform Activation during Object Discrimination Reflects the Process of Differentiating Structural Descriptions
}}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Curation/RBID.i -Sk "pubmed:18345986" \
| HfdSelect -Kh $EXPLOR_AREA/Data/Main/Curation/biblio.hfd \
| NlmPubMed2Wicri -a HapticV1
| This area was generated with Dilib version V0.6.23. |  |