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Challenges for using Representational Similarity Analysis to Infer Cognitive Processes: A Demonstration from Interactive Activation Models of Word Reading
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In: Proceedings of the Annual Meeting of the Cognitive Science Society, vol 43, iss 43 (2021)
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Distinct Neural Substrates Support Phonological and Orthographic Working Memory: Implications for Theories of Working Memory
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Abstract:
Prior behavioral and neuroimaging evidence supports a separation between working memory capacities in the phonological and orthographic domains. Although these data indicate distinct buffers for orthographic and phonological information, prior neural evidence does indicate that nearby left inferior parietal regions support both of these working memory capacities. Given that no study has directly compared their neural substrates based on data from the same individuals, it is possible that there is a common left inferior parietal region shared by both working memory capacities. In fact, those endorsing an embedded processes account of working memory might suggest that parietal involvement reflects a domain-general attentional system that directs attention to long-term memory representations in the two domains, implying that the same neural region supports the two capacities. Thus, in this work, a multivariate lesion-symptom mapping approach was used to assess the neural basis of phonological and orthographic working memory using behavioral and lesion data from the same set of 37 individuals. The results showed a separation of the neural substrates, with regions in the angular gyrus supporting orthographic working memory and with regions primarily in the supramarginal gyrus supporting phonological working memory. The results thus argue against the parietal involvement as supporting a domain-general attentional mechanism and support a domain-specific buffer account of working memory.
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URL: https://doi.org/10.3389/fneur.2021.681141
https://hdl.handle.net/1911/111386
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The Role of Phonological Working Memory in Narrative Production: Evidence from Chronic Aphasia
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Investigating the relation between phonological working memory and speech production
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Distinct Neural Substrates Support Phonological and Orthographic Working Memory: Implications for Theories of Working Memory
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In: Front Neurol (2021)
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The Critical Role of Semantic Working Memory in Language Comprehension and Production
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In: Curr Dir Psychol Sci (2021)
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Working Memory Capacities Neurally Dissociate: Evidence from Acute Stroke
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In: Cereb Cortex Commun (2021)
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Lexical processing depends on sublexical processing: Evidence from the visual world paradigm and aphasia
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How do word frequency and semantic diversity affect selection of representations in word processing?
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Evaluating the Buffer vs. Embedded Processes Accounts of Verbal Short-term Memory by Using Multivariate Neuroimaging and Brain Stimulation Approaches
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Independent Contributions of Semantic and Phonological Working Memory to Spontaneous Speech in Acute Stroke
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Semantic and Syntactic Interference in Sentence Comprehension: A Comparison of Working Memory Models
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Sentence processing in aphasic speakers with short-term memory deficits: Interactions between structural and lexical processing
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Evaluating the relationship between sublexical and lexical processing in speech perception: Evidence from aphasia
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Syntactic agreement attraction reflects working memory processes
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Rethinking the Behavioral Patterns that Dissociate Semantic Dementia and Comprehension-Impaired Stroke Aphasia
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Sublexical, lexical and phonological short-term memory processes: Evaluating models of speech perception and short-term memory
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The role of working memory in interference resolution during Chinese sentence comprehension: Evidence from event-related potentials (ERPs)
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Lexical selection in the semantically blocked cyclic naming task: the role of cognitive control and learning
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