Aberrant Salience Across Levels of Processing in Positive and Negative Schizotypy

Frontiers in Psychology

article

Charlotte A. Chun¹  Peter Brugger³  Thomas R. Kwapil¹ 

[1] Department of Psychology, University of North Carolina at Greensboro, United States;Department of Psychology, Temple University, United States;Neuropsychology Unit, Department of Neurology, University Hospital Zürich;Department of Psychology, University of Illinois at Urbana-Champaign, United States

关键词: aberrant salience;    schizotypy;    latent inhibition;    contingency illusions;    superstitious behavior;   

DOI  :  10.3389/fpsyg.2019.02073

学科分类：社会科学、人文和艺术（综合）

来源: Frontiers

【 摘 要 】

Schizotypy is a multidimensional construct conceptualized as the expression of the underlying vulnerability for schizophrenia. Certain traits of positive schizotypy, such as odd beliefs, unusual perceptual experiences, suspiciousness, and referential thinking show associations with aberrant salience. Positive schizotypy may involve hyper-attribution of salience toward insignificant events, whereas negative schizotypy may involve hypo-attribution of salience, even toward important events. Attribution of salience is thought to involve dopamine-mediated processes, a mechanism that is disrupted in schizotypy; however, little is known about the cognitive processes potentially underlying salience attribution. The present study assessed the relationship between aberrant salience and latent inhibition (LI), as well as their associations with positive and negative schizotypy. Salience was measured at various stages of processing, including visual salience, attributions of salience to contingency illusions, and self-reported experience of salience. Schizotypy traits were differentially associated with self-reported aberrant salience experiences: positive schizotypy showed positive associations (β = 0.67, f 2 = 0.82, large effect) and negative schizotypy showed inverse associations (β = −0.20, f 2 = 0.07, small effect). However, neither schizotypy dimension was associated with visual salience, contingency illusions, or LI. Salience processing across perceptual, cognitive, and experiential levels likely involves different mechanisms, some of which may not show major disruption in subclinical manifestations of schizotypy.

【 授权许可】

CC BY