Chat with AIExam 12: Semantic Longterm Memory
What are the main claims of the category-specific hypothesis of semantic memory?
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Answered by Examlex AI CopilotThe category-specific hypothesis of semantic memory suggests that our knowledge of different categories of objects is stored in separate and distinct areas of the brain. This means that when we think about or retrieve information about living things, such as animals or plants, it is processed in a different part of the brain than when we think about non-living things, such as tools or furniture.
The main claims of this hypothesis include the idea that there are specialized neural networks for different categories of objects, and that these networks have evolved to efficiently process and store information about those specific categories. For example, it is proposed that there may be a specific area of the brain dedicated to processing information about faces, while another area is dedicated to processing information about tools.
Additionally, the category-specific hypothesis suggests that our ability to recognize and remember objects within a specific category is influenced by our prior experience and exposure to those objects. This means that our knowledge of living things may be more detailed and accurate than our knowledge of non-living things, simply because we have more frequent and varied experiences with living things.
Overall, the category-specific hypothesis of semantic memory proposes that our knowledge of different categories of objects is organized and processed in a specialized manner within the brain, and that this organization is influenced by our prior experiences and exposure to those categories.
What are the three subtypes of primary progressive aphasia?
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VerifiedNonfluent/agrammatic; semantic; logopenic
The progressive impairment of intellect and behavior is referred to as:
(30) VerifiedB
Where is the "hub" of the "hub and spoke" model of semantic memory hypothesized to reside?
(29) In neuropsychology, a specific deficit in naming is referred to as _____, whereas _____ is a more general term for difficulty with language comprehension or production.
(32) What are the main claims of the modality-specific hypothesis of semantic memory?
(41) How does primary progressive aphasia differ from Alzheimer's disease?
(39) Alex Martin and colleagues have argued that activity in left fusiform gyrus is associated with the storage of color-related knowledge about objects. Discuss one alternative interpretation of this finding, and how Martin and colleagues have sought to rule out this alternative.
(40) How have demonstrations of double dissociations of selective impairment for knowledge of living vs. nonliving things been taken as evidence for the modality-specific hypothesis? For the category-specific hypothesis?
(31) What evidence is there that fluent primary progressive aphasia/semantic dementia isn't simply a deficit in lexical access?
(41) Word-finding difficulties might be associated with which of the following?
(36) How have the inferences from neuropsychological double dissociations been criticized? What evidence is there in favor of this criticism?
(31) A deficit in accessing the meaning of categories such as animals or fruits has been used as evidence for the _____-specific knowledge hypothesis.
(34) One neurological condition has been known by two names, "fluent primary progressive aphasia" and semantic dementia. How does one's choice of name reflect what one believes to be the core deficit of this disorder?
(30) Describe the fMRI adaptation paradigm and the logic behind its use for experimentation.
(37) List two of the category deficits that have been used to support the domain-specific knowledge hypothesis of semantic memory
(38) Progressive damage to what brain region is associated with semantic dementia?
(36) Frontotemporal dementia can follow an acute event, such as a stroke.
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