Delikishkina, Ekaterina and Lingnau, Angelika and Miceli, Gabriele (2020) Neural correlates of object and action naming practice. CORTEX, 131. pp. 87-102. ISSN 0010-9452, 1973-8102
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Word retrieval deficits are a common problem in patients with stroke-induced brain damage. While complete recovery of language in chronic aphasia is rare, patients' naming ability can be significantly improved by speech therapy. A growing number of neuro-imaging studies have tried to pinpoint the neural changes associated with successful outcome of naming treatment. However, the mechanisms supporting naming practice in the healthy brain have received little attention. Yet, understanding these mechanisms is crucial for teasing them apart from functional reorganization following brain damage. To address this issue, we trained a group of healthy monolingual Italian speakers on naming pictured objects and actions for ten consecutive days and scanned them before and after training. Although activity during object versus action naming dissociated in several regions (lateral occipitotemporal, parietal and left inferior frontal cortices), training effects for the two word classes were similar and included activation decreases in classical language regions of the left hemisphere (posterior inferior frontal gyrus, anterior insula), MVPA potentially due to decreased lexical selection demands. Additionally, MVPA revealed training-related activation changes in the left parietal and temporal cortices associated with the retrieval of knowledge from episodic memory (precuneus, angular gyrus) and facilitated access to phonological word forms (posterior superior temporal sulcus). (C) 2020 Elsevier Ltd. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | NOUN-VERB DISSOCIATIONS; BRAIN-DAMAGED PATIENTS; GRAMMATICAL CLASS; PREFRONTAL CORTEX; VISUAL PATHWAYS; PARIETAL CORTEX; WORD-FREQUENCY; FMRI EVIDENCE; MULTI-VOXEL; RETRIEVAL; Language training; Object naming; Action naming; fMRI; MVPA |
| Subjects: | 100 Philosophy & psychology > 150 Psychology |
| Divisions: | Human Sciences > Institut für Psychologie Human Sciences > Institut für Psychologie > Lehrstuhl für Cognitive Neuroscience – Prof. Dr. Angelika Lingnau |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 10 Mar 2021 07:46 |
| Last Modified: | 10 Mar 2021 07:46 |
| URI: | https://pred.uni-regensburg.de/id/eprint/43667 |
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