Lesions to the left lateral prefrontal cortex impair decision threshold adjustment for lexical selection

Autor: Leendert van Maanen, F-Xavier Alario, Royce Anders, Stephanie K. Riès
Přispěvatelé: Psychologische Methodenleer (Psychologie, FMG), Laboratoire de psychologie cognitive (LPC), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), ANR-16-CONV-0002,ILCB,ILCB: Institute of Language Communication and the Brain(2016), ANR-11-IDEX-0001,Amidex,INITIATIVE D'EXCELLENCE AIX MARSEILLE UNIVERSITE(2011), European Project: 263575,EC:FP7:ERC,ERC-2010-StG_20091209,LIPS(2011), Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Male
Cognitive Neuroscience
evidence accumulation
Prefrontal Cortex
Experimental and Cognitive Psychology
050105 experimental psychology
Article
03 medical and health sciences
0302 clinical medicine
Lexical selection
Arts and Humanities (miscellaneous)
model-based patient analysis
Developmental and Educational Psychology
Humans
0501 psychology and cognitive sciences
Prefrontal cortex
Aged
Language
picture naming
Language production
Repetition (rhetorical device)
05 social sciences
Cognition
stroke patients
psychometric models for patient analysis
Middle Aged
Semantics
Stroke
Neuropsychology and Physiological Psychology
lexical selection
[SCCO.PSYC]Cognitive science/Psychology
Female
Decision threshold
Psychology
Priming (psychology)
030217 neurology & neurosurgery
Picture naming
Cognitive psychology
Zdroj: Cognitive Neuropsychology, 34(1-2), 1-20. Taylor and Francis Ltd.
Cogn Neuropsychol
Cognitive Neuropsychology
Cognitive Neuropsychology, 2017, 34 (1-2), pp.1-20. ⟨10.1080/02643294.2017.1282447⟩
Cognitive Neuropsychology, Taylor & Francis (Routledge), 2017, 34 (1-2), pp.1-20. ⟨10.1080/02643294.2017.1282447⟩
ISSN: 0264-3294
1464-0627
Popis: International audience; Patients with lesions in the left prefrontal cortex (PFC) have been shown to be impaired in lexical selection, especially when interference between semantically related alternatives is increased. To more deeply investigate which computational mechanisms may be impaired following left PFC damage due to stroke, a psychometric modelling approach is employed in which we assess the cognitive parameters of the patients from an evidence accumulation (sequential information sampling) modelling of their response data. We also compare the results to healthy speakers. Analysis of the cognitive parameters indicates an impairment of the PFC patients to appropriately adjust their decision threshold, in order to handle the increased item difficulty that is introduced by semantic interference. Also, the modelling contributes to other topics in psycholinguistic theory, in which specific effects are observed on the cognitive parameters according to item familiarization, and the opposing effects of priming (lower threshold) and semantic interference (lower drift) which are found to depend on repetition. These results are developed for the blocked-cyclic picture naming paradigm, in which pictures are presented within semantically homogeneous (HOM) or heterogeneous (HET) blocks, and are repeated several times per block. Overall, the results are in agreement with a role of the left PFC in adjusting the decision threshold for lexical selection in language production.
Databáze: OpenAIRE
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