Negative schizotypy is associated with impaired episodic but not semantic coding in a conditional learning task
Taylor and Francis
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Context processing deficits associated with negative schizotypy may reflect variation in semantic or episodic declarative coding. Healthy volunteers (n = 166) were grouped on the basis of their introvertive anhedonia and unusual experiences scores on the Oxford and Liverpool Inventory of Feelings and Experiences (OLIFE). Discrimination learning was measured using a commodity-trading task that required participants to predict profit (+) and loss (−) outcomes. Two forms of a biconditional discrimination (AX+, BY+, AY−, BX−) were employed. With fixed locations (n = 84) A & B were presented on the left, X & Y were on the right, with variable locations (n = 82) A, B, X, & Y occurred randomly in left and right locations. Negative schizotypy reflected the expression of a cognitive phenotype that impaired episodic (configural) representation formation. People with many negative schizotypal traits will struggle to learn when their choices are guided by multiple stimuli in inconsistent locations.
Journal of Cognitive Psychology;
Watt, A. and Skillicorn, D. (2019) 'Negative schizotypy is associated with impaired episodic but not semantic coding in a conditional learning task', Journal of Cognitive Psychology, 31(4), pp.1-12. DOI: 10.1080/20445911.2019.1629446.
Article published in Journal of Cognitive Psychology on 11 June 2019, available at: https://doi.org/10.1080/20445911.2019.1629446.
Cardiff Metropolitan University (Grant ID: Cardiff Metropolian (Internal))
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