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Schizotypy dimensions do not predict overshadowing

Martyn Quigley, Alex Bradley, Mark Haselgrove

Behavioural Brain Research, Volume: 453, Start page: 114631

Swansea University Author: Martyn Quigley

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DOI (Published version): 10.1016/j.bbr.2023.114631

Abstract

When two cues are presented together and reliably predict an outcome (AB-O1) an “overshadowing” effect is typically observed. That is, the relationship between these cues and the outcome is learned about less well than a cue presented on its own with an outcome (e.g., C – O1). The current study soug...

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Published in: Behavioural Brain Research
ISSN: 0166-4328
Published: Elsevier BV 2023
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa64079
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Abstract: When two cues are presented together and reliably predict an outcome (AB-O1) an “overshadowing” effect is typically observed. That is, the relationship between these cues and the outcome is learned about less well than a cue presented on its own with an outcome (e.g., C – O1). The current study sought to explore the relationship between overshadowing and the positive and negative dimensions of schizotypy. A total of 256 participants completed an overshadowing procedure embedded within a causal judgement task and the Short Oxford-Liverpool Inventory of Feelings and Experiences (O-LIFE) which measured the different dimensions of schizotypy. A unilateral overshadowing effect was observed, however, none of the dimensions of schizotypy predicted the magnitude of this effect. These results are the first to demonstrate this finding using an appropriately powered sample and reveal that a tendency to experience symptoms of schizophrenia does not impact upon the overshadowing effect.
Keywords: overshadowing, schizotypy, cue competition, associative learning,
College: Faculty of Medicine, Health and Life Sciences
Start Page: 114631

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