Executive Functioning Component Processes and the Causes of Formal Thought Disorder in People With Schizophrenia
Kerns, John Gerald
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Permalink
https://hdl.handle.net/2142/82006
Description
Title
Executive Functioning Component Processes and the Causes of Formal Thought Disorder in People With Schizophrenia
Author(s)
Kerns, John Gerald
Issue Date
2001
Doctoral Committee Chair(s)
Berenbaum, Howard
Department of Study
Psychology
Discipline
Psychology
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Psychology, Clinical
Language
eng
Abstract
Formal thought disorder (FTD) is a common symptom of schizophrenia. In a review of previous research, FTD was associated with impaired executive functioning. Executive functioning encompasses potentially distinct storage and processing components. The goal of this research was to test whether FTD is caused by deficits in two potentially distinct components of executive functioning: context memory and interference suppression. In two studies, one with people with schizophrenia and the other an analogue study with nonpsychiatric participants, context memory predicted FTD. In addition, in both studies, the effect of a context memory deficit was particularly pronounced when combined with an interference suppression deficit. The highest levels of FTD were associated with both impaired context memory and impaired interference suppression.
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