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Abstract: Loosening of associations in schizophrenia has long been understood as an underlying abnormality in the organization of semantic memory in patients. In a cross-representational priming paradigm we observed reversed N400 priming in patients relative to controls to target pictures that were preceded by Identity related prime words (i.e. sock ) in a picture naming task. Categorical and Phon... read moreemic Onset relationships (stomach and cake ) elicited the same behavioral and electrophysiological response in patients and controls.The results indicate that schizophrenic patients experience increased activation at the conceptual-lexical level of representation.
Thesis (M.S.)--Tufts University, 2013.
Submitted to the Dept. of Psychology.
Advisor: Gina Kuperberg.
Committee: Phillip Holcomb, and Tali Ditman.
Keywords: Psychology, Linguistics, and Cognitive psychology.read less
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