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Full-Text Articles in Social and Behavioral Sciences
Using Multivariate Pattern Analysis To Investigate The Neural Representation Of Concepts With Visual And Haptic Features, Laura Bradshaw Baucom
Using Multivariate Pattern Analysis To Investigate The Neural Representation Of Concepts With Visual And Haptic Features, Laura Bradshaw Baucom
Theses and Dissertations
A fundamental debate in cognitive neuroscience concerns how conceptual knowledge is represented in the brain. Over the past decade, cognitive theorists have adopted explanations that suggest cognition is rooted in perception and action. This is called the embodiment hypothesis. Theories of conceptual representation differ in the degree to which representations are embodied, from those which suggest conceptual representation requires no involvement of sensory and motor systems to those which suggest it is entirely dependent upon them. This work investigated how the brain represents concepts that are defined by their visual and haptic features using novel multivariate approaches to the analysis …
Using Multivariate Pattern Analysis To Identify Conceptual Knowledge Representation In The Brain, Jing Wang
Using Multivariate Pattern Analysis To Identify Conceptual Knowledge Representation In The Brain, Jing Wang
Theses and Dissertations
Representation of semantic knowledge is an important aspect of cognitive function. The processing of concrete (e.g., book) and abstract (e.g., freedom) semantic concepts show systematic differences on various behavioral measures in both healthy and clinical populations. However, previous studies examining the difference in the neural substrates correlating with abstract and concrete concept representations have reached inconsistent conclusions. This dissertation used multiple novel data analyses approaches on functional magnetic resonance imaging (fMRI) data, to investigate representational differences of abstract and concrete concepts and to provide converging evidence that the representations of abstract and concrete semantic knowledge in the brain rely on …