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Early Activity in Broca's Area During Reading Reflects Fast Access to Articulatory Codes From Print
In: ISSN: 1047-3211 ; EISSN: 1460-2199 ; Cerebral Cortex ; https://hal.archives-ouvertes.fr/hal-01432370 ; Cerebral Cortex, Oxford University Press (OUP), 2015, 25 (7), pp.1715-1723. ⟨10.1093/cercor/bht350⟩ (2015)
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Automatic and Controlled Semantic Retrieval: TMS Reveals Distinct Contributions of Posterior Middle Temporal Gyrus and Angular Gyrus
Abstract: Semantic retrieval involves both (1) automatic spreading activation between highly related concepts and (2) executive control processes that tailor this activation to suit the current context or goals. Two structures in left temporoparietal cortex, angular gyrus (AG) and posterior middle temporal gyrus (pMTG), are thought to be crucial to semantic retrieval and are often recruited together during semantic tasks; however, they show strikingly different patterns of functional connectivity at rest (coupling with the “default mode network” and “frontoparietal control system,” respectively). Here, transcranial magnetic stimulation (TMS) was used to establish a causal yet dissociable role for these sites in semantic cognition in human volunteers. TMS to AG disrupted thematic judgments particularly when the link between probe and target was strong (e.g., a picture of an Alsatian with a bone), and impaired the identification of objects at a specific but not a superordinate level (for the verbal label “Alsatian” not “animal”). In contrast, TMS to pMTG disrupted thematic judgments for weak but not strong associations (e.g., a picture of an Alsatian with razor wire), and impaired identity matching for both superordinate and specific-level labels. Thus, stimulation to AG interfered with the automatic retrieval of specific concepts from the semantic store while stimulation of pMTG impaired semantic cognition when there was a requirement to flexibly shape conceptual activation in line with the task requirements. These results demonstrate that AG and pMTG make a dissociable contribution to automatic and controlled aspects of semantic retrieval.
Keyword: Articles
URL: https://doi.org/10.1523/JNEUROSCI.4705-14.2015
http://www.ncbi.nlm.nih.gov/pubmed/26586812
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4649000/
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3
Automatic and controlled semantic retrieval: TMS reveals distinct contributions of posterior middle temporal gyrus and angular gyrus
Davey, James; Cornelissen, Piers L.; Thompson, Hannah E.. - : Society for Neuroscience, 2015
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4
Charting the functional relevance of Broca’s area for visual word recognition and picture naming in Dutch using fMRI-guided TMS
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 125 (2013) 2, 223-230
OLC Linguistik
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5
The neural basis of the right visual field advantage in reading: an MEG analysis using virtual electrodes
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 118 (2011) 3, 53-71
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OLC Linguistik
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6
The neural basis of reading
Cornelissen, Piers L. (Hrsg.). - Oxford [u.a.] : Oxford Univ. Press, 2010
UB Frankfurt Linguistik
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7
During visual word recognition phonology is accessed by 100ms and may be mediated by a speech production code: Evidence from MEG
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8
Activation of the left inferior frontal gyrus in the first 200 ms of reading:evidence from magnetoencephalography (MEG)
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9
SERIOL reading
In: Language and cognitive processes. - Abingdon : Routledge, Taylor & Francis Group 23 (2008) 1, 143-164
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OLC Linguistik
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10
Visual factors in reading
Cornelissen, Piers L. (Hrsg.). - Malden, Mass. [u.a.] : Blackwell, 2007
UB Frankfurt Linguistik
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11
Symbol-string sensitivity and adult performance in lexical decision
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 94 (2005) 3, 278-296
BLLDB
OLC Linguistik
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12
Letter-position encoding and dyslexia
In: Journal of research in reading. - Leeds : Wiley-Blackwell 28 (2005) 3, 274-301
BLLDB
OLC Linguistik
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13
Visual factors in reading
Cornelissen, Piers L. (Hrsg.); Singleton, Chris (Hrsg.). - Leeds : Blackwell, 2005
BLLDB
UB Frankfurt Linguistik
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14
Visual encoding mechanisms and their relationship to text presentation preference
In: Dyslexia. - Bracknell : British Dyslexia Association 10 (2004) 2, 77-94
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15
Symbol-string sensitivity and children's reading
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 89 (2004) 3, 601-610
OLC Linguistik
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16
Symbol-string sensitivity and children's reading
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 89 (2004) 3, 601-610
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17
Cortical effects of shifting letter position in letter strings of varying length
In: Journal of cognitive neuroscience. - Cambridge, Mass. : MIT Press Journals 15 (2003) 5, 731-746
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18
Dynamics of visual feature analysis and object-level processing in face versus letter-string perception
In: Brain. - Oxford : Oxford Univ. Press 125 (2002) 5, 1125-1136
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19
Dynamics of letter string perception in the human occipitotemporal cortex
In: Brain. - Oxford : Oxford Univ. Press 122 (1999) 11, 2119-2132
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20
Basic deficits in dyslexia
Frith, Uta (Mitarb.); Frith, Christopher D. (Mitarb.); Cornelissen, Piers L. (Mitarb.)...
In: Basic mechanisms in cognition and language. - Amsterdam [u.a.] : Elsevier (1998), 1-53
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