Abstract:
:We performed an fMRI one-back recognition study aimed at distinguishing the semantic versus perceptual aspects of how objects and their written forms are processed. There were three types of visually presented items: pictures (schematic drawings of objects); words identifying these objects; and a mixed condition in which pictures were interleaved with words. A semantic decision about object identity was required when pictures were interleaved with words. This condition, contrasted with the other two, invoked a larger signal in multiple areas, including frontal cortex, bilateral occipitotemporal cortex, and the right middle temporal gyrus. We propose that the left occipitotemporal and right temporal activations are indicative of the neural substrate mediating picture-word conversions, whereas the frontal activations reflect the coordinating functions of the central executive.
journal_name
Hum Brain Mappjournal_title
Human brain mappingauthors
Sevostianov A,Horwitz B,Nechaev V,Williams R,Fromm S,Braun ARdoi
10.1002/hbm.10037keywords:
subject
Has Abstractpub_date
2002-07-01 00:00:00pages
168-75issue
3eissn
1065-9471issn
1097-0193journal_volume
16pub_type
杂志文章abstract::The Disrupted in Schizophrenia Gene 1 (DISC1) plays a role in both neural signaling and development and is associated with schizophrenia, although its links to altered brain structure and function in this disorder are not fully established. Here we have used structural and functional MRI to investigate links with six ...
journal_title:Human brain mapping
pub_type: 杂志文章
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abstract::Numerous studies suggest that interhemispheric inhibition-relayed via the corpus callosum-plays an important role in unilateral hand motions. Interestingly, transcallosal inhibition appears to be indicative of a strong laterality effect, where generally the dominant hemisphere exerts inhibition on the nondominant one....
journal_title:Human brain mapping
pub_type: 杂志文章
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journal_title:Human brain mapping
pub_type: 杂志文章
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journal_title:Human brain mapping
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doi:10.1002/hbm.23093
更新日期:2016-03-01 00:00:00
abstract::Artificial percepts (phosphenes) can be induced by applying transcranial magnetic stimulation (TMS) over human visual cortex. Although phosphenes have been used to study visual awareness, the neural mechanisms generating them have not yet been delineated. We directly tested the two leading hypotheses of how phosphenes...
journal_title:Human brain mapping
pub_type: 杂志文章
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journal_title:Human brain mapping
pub_type: 杂志文章
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更新日期:2014-02-01 00:00:00
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pub_type: 杂志文章
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journal_title:Human brain mapping
pub_type: 临床试验,杂志文章
doi:
更新日期:1998-01-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.21002
更新日期:2011-01-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
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journal_title:Human brain mapping
pub_type: 杂志文章,meta分析
doi:10.1002/hbm.24747
更新日期:2019-12-01 00:00:00
abstract::The Stroop interference test requires a person to respond to specific elements of a stimulus while suppressing a competing response. Previous positron emission tomography (PET) work has shown increased activity in the right anterior cingulate gyrus during the Stroop test. It is unclear, however, whether the anterior c...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.460010305
更新日期:1994-01-01 00:00:00
abstract::Non-quantitative MRI is prone to intersubject intensity variation rendering signal intensity level based analyses limited. Here, we propose a method that fuses non-quantitative routine T1-weighted (T1w), T2w, and T2w fluid-saturated inversion recovery sequences using independent component analysis and validate it on a...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23615
更新日期:2017-07-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.10113
更新日期:2003-07-01 00:00:00
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pub_type: 杂志文章
doi:10.1002/hbm.22881
更新日期:2015-10-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.22129
更新日期:2013-12-01 00:00:00
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pub_type: 杂志文章
doi:10.1002/hbm.20141
更新日期:2005-05-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23467
更新日期:2017-03-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23934
更新日期:2018-04-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.21266
更新日期:2012-05-01 00:00:00
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journal_title:Human brain mapping
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更新日期:2015-07-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.20162
更新日期:2005-12-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.24634
更新日期:2019-09-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.22361
更新日期:2014-06-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.22467
更新日期:2014-08-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.20771
更新日期:2009-11-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.21302
更新日期:2012-07-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.20706
更新日期:2009-09-01 00:00:00
abstract::Cognitive deficits are common in Parkinson's disease and we suspect that dysfunctions of connected brain regions can be the source of these deficits. The aim of the present study was to investigate changes in whole-brain intrinsic functional connectivity according to differences in cognitive profiles in Parkinson's di...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23474
更新日期:2017-03-01 00:00:00