Effect of name agreement on prefrontal activity during overt and covert picture naming.

Effect of name agreement on prefrontal activity during overt and covert picture naming.

In recent neuroimaging studies, various tasks have been used to examine prefrontal cortex involvement in semantic retrieval and selection. One such task, picture naming, has yielded inconsistent results across studies. One potential explanation for this inconsistency is that the magnitude of prefron...

Full description

Bibliographic Details
Main Authors: Kan, Irene P., Thompson-Schill, Sharon L.
Format: Villanova Faculty Authorship
Language:English
Published: 2004
Online Access:http://ezproxy.villanova.edu/login?url=https://digital.library.villanova.edu/Item/vudl:177557
id vudl:177557
record_format vudl
institution Villanova University
collection Digital Library
modeltype_str_mv vudl-system:ResourceCollection
vudl-system:CoreModel
vudl-system:CollectionModel
datastream_str_mv PARENT-LIST
LEGACY-METS
AGENTS
AUDIT
THUMBNAIL
MEMBER-QUERY
PARENT-QUERY
MEMBER-LIST-RAW
LICENSE
PROCESS-MD
PARENT-LIST-RAW
STRUCTMAP
DC
RELS-EXT
hierarchytype
hierarchy_all_parents_str_mv vudl:177547
vudl:172968
vudl:641262
vudl:3
vudl:1
sequence_vudl_177547_str 0000000004
hierarchy_top_id vudl:641262
hierarchy_top_title Villanova Faculty Publications
fedora_parent_id_str_mv vudl:177547
hierarchy_first_parent_id_str vudl:177557
hierarchy_parent_id vudl:177547
hierarchy_parent_title Kan Irene
hierarchy_sequence_sort_str 0000000004
hierarchy_sequence 0000000004
spelling Effect of name agreement on prefrontal activity during overt and covert picture naming.
Kan, Irene P.
Thompson-Schill, Sharon L.
In recent neuroimaging studies, various tasks have been used to examine prefrontal cortex involvement in semantic retrieval and selection. One such task, picture naming, has yielded inconsistent results across studies. One potential explanation for this inconsistency is that the magnitude of prefrontal activity during picture naming depends on the extent to which a given picture evokes a single reliable meaning. To test this hypothesis, fMRI activity in the prefrontal cortex was measured while subjects named pictures with either high or low name agreement. In Experiment 1, subjects named black-andwhite line drawings, either covertly or overtly. Across both modalities, we found more left inferior frontal gyrus (LIFG) activity when the subjects named low-agreement pictures than when they named high-agreement pictures. No significant difference in head movement was detected between the two modalities. In Experiment 2, we replicated the effect of name agreement on LIFG activity during picture naming, using black-and-white photographs. These results provide further support for the idea that the LIFG mediates selection among competing alternatives and suggest a means for understanding the naming deficits observed in nonfluent aphasia.
2004
Villanova Faculty Authorship
vudl:177557
Cognitive, Affective & Behavioral Neuroscience 4 (1), 2004, 43-57.
en
dc.title_txt_mv Effect of name agreement on prefrontal activity during overt and covert picture naming.
dc.creator_txt_mv Kan, Irene P.
Thompson-Schill, Sharon L.
dc.description_txt_mv In recent neuroimaging studies, various tasks have been used to examine prefrontal cortex involvement in semantic retrieval and selection. One such task, picture naming, has yielded inconsistent results across studies. One potential explanation for this inconsistency is that the magnitude of prefrontal activity during picture naming depends on the extent to which a given picture evokes a single reliable meaning. To test this hypothesis, fMRI activity in the prefrontal cortex was measured while subjects named pictures with either high or low name agreement. In Experiment 1, subjects named black-andwhite line drawings, either covertly or overtly. Across both modalities, we found more left inferior frontal gyrus (LIFG) activity when the subjects named low-agreement pictures than when they named high-agreement pictures. No significant difference in head movement was detected between the two modalities. In Experiment 2, we replicated the effect of name agreement on LIFG activity during picture naming, using black-and-white photographs. These results provide further support for the idea that the LIFG mediates selection among competing alternatives and suggest a means for understanding the naming deficits observed in nonfluent aphasia.
dc.date_txt_mv 2004
dc.format_txt_mv Villanova Faculty Authorship
dc.identifier_txt_mv vudl:177557
dc.source_txt_mv Cognitive, Affective & Behavioral Neuroscience 4 (1), 2004, 43-57.
dc.language_txt_mv en
author Kan, Irene P.
Thompson-Schill, Sharon L.
spellingShingle Kan, Irene P.
Thompson-Schill, Sharon L.
Effect of name agreement on prefrontal activity during overt and covert picture naming.
author_facet Kan, Irene P.
Thompson-Schill, Sharon L.
dc_source_str_mv Cognitive, Affective & Behavioral Neuroscience 4 (1), 2004, 43-57.
format Villanova Faculty Authorship
author_sort Kan, Irene P.
dc_date_str 2004
dc_title_str Effect of name agreement on prefrontal activity during overt and covert picture naming.
description In recent neuroimaging studies, various tasks have been used to examine prefrontal cortex involvement in semantic retrieval and selection. One such task, picture naming, has yielded inconsistent results across studies. One potential explanation for this inconsistency is that the magnitude of prefrontal activity during picture naming depends on the extent to which a given picture evokes a single reliable meaning. To test this hypothesis, fMRI activity in the prefrontal cortex was measured while subjects named pictures with either high or low name agreement. In Experiment 1, subjects named black-andwhite line drawings, either covertly or overtly. Across both modalities, we found more left inferior frontal gyrus (LIFG) activity when the subjects named low-agreement pictures than when they named high-agreement pictures. No significant difference in head movement was detected between the two modalities. In Experiment 2, we replicated the effect of name agreement on LIFG activity during picture naming, using black-and-white photographs. These results provide further support for the idea that the LIFG mediates selection among competing alternatives and suggest a means for understanding the naming deficits observed in nonfluent aphasia.
title Effect of name agreement on prefrontal activity during overt and covert picture naming.
title_full Effect of name agreement on prefrontal activity during overt and covert picture naming.
title_fullStr Effect of name agreement on prefrontal activity during overt and covert picture naming.
title_full_unstemmed Effect of name agreement on prefrontal activity during overt and covert picture naming.
title_short Effect of name agreement on prefrontal activity during overt and covert picture naming.
title_sort effect of name agreement on prefrontal activity during overt and covert picture naming.
publishDate 2004
normalized_sort_date 2004-01-01T00:00:00Z
language English
collection_title_sort_str effect of name agreement on prefrontal activity during overt and covert picture naming.
relsext.sequence_txt_mv vudl:177547#4
fgs.state_txt_mv Active
fgs.lastModifiedDate_txt_mv 2021-04-12T18:59:32.766Z
fgs.type_txt_mv http://www.w3.org/ns/ldp#Resource
http://fedora.info/definitions/v4/repository#Container
http://www.w3.org/ns/ldp#Container
http://fedora.info/definitions/v4/repository#Resource
http://www.w3.org/ns/ldp#RDFSource
http://www.w3.org/ns/ldp#BasicContainer
relsext.hasModel_txt_mv http://hades.library.villanova.edu:8080/rest/vudl-system:ResourceCollection
http://hades.library.villanova.edu:8080/rest/vudl-system:CoreModel
http://hades.library.villanova.edu:8080/rest/vudl-system:CollectionModel
fgs.createdBy_txt_mv fedoraAdmin
fgs.lastModifiedBy_txt_mv fedoraAdmin
fgs.createdDate_txt_mv 2013-01-22T06:35:54.393Z
relsext.sortOn_txt_mv title
fgs.label_txt_mv Effect of name agreement on prefrontal activity during overt and covert picture naming.
fgs.ownerId_txt_mv diglibEditor
relsext.hasLegacyURL_txt_mv http://digital.library.villanova.edu/Villanova%20Digital%20Collection/Faculty%20Fulltext/Kan%20Irene/KanIrene-83fb225a-93da-4565-ad1e-4f28a01f07bc.xml
relsext.itemID_txt_mv oai:digital.library.villanova.edu:vudl:177557
relsext.isMemberOf_txt_mv http://hades.library.villanova.edu:8080/rest/vudl:177547
has_order_str no
agent.name_txt_mv Falvey Memorial Library, Villanova University
KHL
license.mdRef_str http://digital.library.villanova.edu/copyright.html
license_str protected
has_thumbnail_str true
THUMBNAIL_contentDigest_digest_str 203c69e18f4f46c81e9892448d2c07cd
first_indexed 2014-01-12T00:02:25Z
last_indexed 2021-04-12T19:01:43Z
_version_ 1783108468916355072
subpages

Similar Items