The effect of expectancy on Stroop interference scores in high and low positive schizotypy groups
Cardiff Metropolitan University
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The relationship between schizophrenia and schizotypy has been linked by their similar factorial design, which relate schizophrenia symptoms to schizotypy. Cognitive deficits have been a focal point of schizotypy as, although deficits have been observed in schizophrenia, no significant deficits have been observed in schizotypy. This study considered the application of dual mechanisms of control theory, which hypothesised that there are two modes of cognitive control. This study aimed to account for the lack of sensitivity and specificity of the Stroop task by modifying the design to reduce conflict adaptation and test proactive and reactive control in a condition of stimulus expectancy. It also aimed to test a conclusion that the Stroop task is unable to measure proactive control and that only deficits of proactive control are observed in schizophrenia. Using the Stroop task, this study measured the Stroop interference scores for high and low positive schizotypy groups to test the relationship between Stroop deficits and positive schizotypy. No significant findings were observed in this study. Recommendations were made to improve on this study in future research. These included increasing the sample size to improve statistical power and to explore negative and disorganized schizotypy, in addition to positive schizotypy.
B.Sc. (Hons) Psychology
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