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Cognitive and Neural Mechanisms of Social Communication Dysfunction in Primary Progressive Aphasia
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In: Brain Sciences; Volume 11; Issue 12; Pages: 1600 (2021)
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The neural underpinnings of shared meaning between speakers and listeners of naturalistic language ...
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Domain-general and domain-specific computations in single word processing. ...
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Modulating semantic speech-gesture matching in healthy subjects and patients with schizophrenia spectrum disorder via transcranial direct current stimulation
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Domain-general and domain-specific computations in single word processing.
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The Physiology of Dementia: Network reorganisation in progressive non-fluent aphasia as a model of neurodegeneration ...
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The involvement of left inferior frontal and middle temporal cortices in word production unveiled by greater facilitation effects following brain damage.
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In: Neuropsychologia, vol. 121, pp. 122-134 (2018)
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Abstract:
In stroke-induced aphasia, left hemispheric lesions generally disturb the word production network. The left inferior frontal gyrus (LIFG) and the left middle temporal gyrus (LMTG) are involved in word production, but their respective contribution remains ambiguous. Previous investigations have largely focused on semantic interference to gather information about word production. Here we assessed the sensitivity of twenty-five aphasic speakers with either LIFG or LMTG lesions and matched controls to both semantic facilitation and interference in word production using the picture-word (PWP) and the blocked-cyclic naming (BCNP) paradigms. In the PWP (Exp. 1), semantic facilitation was exaggerated in participants with LIFG damage as compared to age-matched controls. In the BCNP (Exp. 2), repetition priming on production speed was larger in participants with LMTG damage than in controls, without any decrease of semantic errors. In the light of the results in the PWP, the LIFG appears to be a necessary structure to shape semantic facilitation. It might play an important role in properly adjusting the lexical selection threshold within the word production network. The results in the BCNP suggest that the LMTG conveys semantic-to-lexical connections likely involved in repetition priming and in mapping concepts to their correct lexical label. As consequences, participants with LIFG lesions possibly rely more on strategic vs automatic processes to efficiently select lexical entries in semantically competitive contexts, whereas participants with LMTG might exploit residual semantic-to-lexical activation.
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Keyword:
Adult; Aged; Aphasia; Aphasia/diagnostic imaging; Aphasia/etiology; Aphasia/physiopathology; Female; Frontal Lobe/diagnostic imaging; Frontal Lobe/physiopathology; Humans; Language production; Left inferior frontal cortex; Left middle temporal cortex; Magnetic Resonance Imaging; Male; Middle Aged; Pattern Recognition; Repetition Priming/physiology; Semantic priming; Semantics; Speech/physiology; Stroke/complications; Stroke/diagnostic imaging; Stroke/physiopathology; Temporal Lobe/diagnostic imaging; Temporal Lobe/physiopathology; Visual/physiology; Vocabulary; Young Adult
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URL: https://serval.unil.ch/notice/serval:BIB_0750601E7977 https://doi.org/10.1016/j.neuropsychologia.2018.10.026 http://nbn-resolving.org/urn/resolver.pl?urn=urn:nbn:ch:serval-BIB_0750601E79772 https://serval.unil.ch/resource/serval:BIB_0750601E7977.P001/REF.pdf
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A common neural hub resolves syntactic and non-syntactic conflict through cooperation with task-specific networks.
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Spatiotemporal dynamics of word retrieval in speech production revealed by cortical high-frequency band activity. ...
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Spatiotemporal dynamics of word retrieval in speech production revealed by cortical high-frequency band activity.
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Conflict monitoring engages the mediofrontal cortex during nonword processing
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Magnetic resonance imaging in epilepsy. Functional and structural imaging in frontal lobe epilepsy and language study in bilingual patients
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In: TDX (Tesis Doctorals en Xarxa) (2016)
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Novel word acquisition in aphasia: Facing the word-referent ambiguity of natural language learning contexts
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Predictors of longitudinal outcome and recovery of pragmatic language and its relation to externalizing behaviour after pediatric traumatic brain injury
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Identification of the regions involved in phonological assembly using a novel paradigm.
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In: Brain and Language, vol. 150, pp. 45-53 (2015)
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Inferior frontal oscillations reveal visuo-motor matching for actions and speech: evidence from human intracranial recordings.
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In: Neuropsychologia, vol. 79, no. Pt B, pp. 206-214 (2015)
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Evolutionary and developmental changes in the lateral frontoparietal network: a little goes a long way for higher-level cognition.
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In: Neuron, vol 84, iss 5 (2014)
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Sensory-motor transformations for speech occur bilaterally.
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The eye as a window to the listening brain: neural correlates of pupil size as a measure of cognitive listening load.
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In: Brain and Mind Institute Researchers' Publications (2014)
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Prospective and retrospective time perception are related to mental time travel: evidence from Alzheimer's disease
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In: ISSN: 0278-2626 ; EISSN: 1090-2147 ; Brain and Cognition ; https://hal.univ-angers.fr/hal-03355681 ; Brain and Cognition, Elsevier, 2013, 83 (1), pp.45-51. ⟨10.1016/j.bandc.2013.06.008⟩ ; http://www.ncbi.nlm.nih.gov/pubmed/23872099 (2013)
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