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1
A functional dissociation of the left frontal regions that contribute to single word production tasks
In: Neuroimage (2021)
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2
A Data-Based Approach for Selecting Pre- and Intra-Operative Language Mapping Tasks
In: Front Neurosci (2021)
Abstract: Background: Pre- and intra-operative language mapping in neurosurgery patients frequently involves an object naming task. The choice of the optimal object naming paradigm remains challenging due to lack of normative data and standardization in mapping practices. The aim of this study was to identify object naming paradigms that robustly and consistently activate classical language regions and could therefore be used to improve the sensitivity of language mapping in brain tumor and epilepsy patients. Methods: Functional magnetic resonance imaging (fMRI) data from two independent groups of healthy controls (total = 79) were used to generate threshold-weighted voxel-based consistency maps. This novel approach allowed us to compare inter-subject consistency of activation for naming single objects in the visual and auditory modality and naming two objects in a phrase or a sentence. Results: We found that the consistency of activation in language regions was greater for naming two objects per picture than one object per picture, even when controlling for the number of names produced in 5 s. Conclusion: More consistent activation in language areas for naming two objects compared to one object suggests that two-object naming tasks may be more suitable for delimiting language eloquent regions with pre- and intra-operative language testing. More broadly, we propose that the functional specificity of brain mapping paradigms for a whole range of different linguistic and non-linguistic functions could be enhanced by referring to databased models of inter-subject consistency and variability in typical and atypical brain responses.
Keyword: Neuroscience
URL: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8656425/
https://doi.org/10.3389/fnins.2021.743402
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3
Neuromodulatory Control and Language Recovery in Bilingual Aphasia: An Active Inference Approach
In: Behav Sci (Basel) (2020)
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