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1
Neuroimaging evidence for a network sampling theory of individual differences in human intelligence test performance
In: Nat Commun (2021)
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2
Consistently inconsistent : Multimodal episodic deficits in semantic aphasia
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3
Stimulating Multiple-Demand Cortex Enhances Vocabulary Learning
Sliwinska, Magdalena W.; Violante, Inês R.; Wise, Richard J.S.. - : Society for Neuroscience, 2017
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Stimulating Multiple-Demand Cortex Enhances Vocabulary Learning
Abstract: It is well established that networks within multiple-demand cortex (MDC) become active when diverse skills and behaviors are being learnt. However, their causal role in learning remains to be established. In the present study, we first performed functional magnetic resonance imaging on healthy female and male human participants to confirm that MDC was most active in the initial stages of learning a novel vocabulary, consisting of pronounceable nonwords (pseudowords), each associated with a picture of a real object. We then examined, in healthy female and male human participants, whether repetitive transcranial magnetic stimulation of a frontal midline node of the cingulo-opercular MDC affected learning rates specifically during the initial stages of learning. We report that stimulation of this node, but not a control brain region, substantially improved both accuracy and response times during the earliest stage of learning pseudoword–object associations. This stimulation had no effect on the processing of established vocabulary, tested by the accuracy and response times when participants decided whether a real word was accurately paired with a picture of an object. These results provide evidence that noninvasive stimulation to MDC nodes can enhance learning rates, thereby demonstrating their causal role in the learning process. We propose that this causal role makes MDC candidate target for experimental therapeutics; for example, in stroke patients with aphasia attempting to reacquire a vocabulary.
URL: http://epubs.surrey.ac.uk/846184/1/Stimulating%20Multiple-Demand%20Cortex%20Enhances%20Vocabulary%20Learning.pdf
https://doi.org/10.1523/JNEUROSCI.3857-16.2017
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