Senior Honors Projects, 2010-current

Date of Award

Spring 2014

Document Type

Thesis

Degree Name

Bachelor of Science (BS)

Department

Department of Psychology

Advisor(s)

Bernice Marcopulos

Kenn Barron

Jeff Dyche

Abstract

Thought derailment, a subtype of formal thought disorder characterized by ideas in speech not following logically from previously expressed ideas (Andreasen, 1979), is most commonly seen in patients with schizophrenia or bipolar disorder. The current study examined how the presence of thought derailment might predict verbal episodic memory performance as measured by the California Verbal Learning Test– Second Edition (CVLT-II). Past research has found that people with severe thought disorder perform poorer on measures of recall and categorization, which are important components of the CVLT-II (Jamadar et al., 2012; Kerns & Berenbaum, 2002; Nestor et al., 1998; Stirling et al., 2006). My sample was taken from consecutive referrals to the neuropsychology lab of a state psychiatric hospital, 188 patients had ratings on a 5-point scale for thought derailment. Of those who were given the CVLT-II, 31 patients were judged not to have thought derailment (rating of 0) and 40 were given a rating between 1 and 4. Several variables of the CVLT-II (immediate free/cued recall, delayed free/cued recall, false positive recognition, and intrusions) were correlated with thought derailment and only false positive recognition showed a significant correlation (r =.28, p=.02). False positive recognition was also the only variable of interest to account for significant variance in thought derailment (R2= 0.07, p= 0.03). The findings are discussed in terms of the literature hypothesizing an underlying deficit in lexical semantic memory access in thought disordered patients.

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.