Parts of me: Identity-relevance moderates self-prioritization |
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| Institution: | 1. Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, De Crespigny Park, SE5 8AF, King''s College London, United Kingdom;2. School of Psychology, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom;3. Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, Addison House, Guy''s Campus, SE1 1UL, King''s College London, United Kingdom;4. Department of Experimental Psychology, OX2 6GG, University of Oxford, United Kingdom;1. Department of Experimental Psychology, University of Oxford, United Kingdom of Great Britain and Northern Ireland;2. Department of Psychology, University of Bath, United Kingdom of Great Britain and Northern Ireland;1. Department of Psychiatry, University of Alberta, Edmonton, Alberta, Canada;2. School of Psychology, University of Aberdeen, Aberdeen, Scotland, United Kingdom;3. Department of Psychology, University of Bath, Bath, England, United Kingdom |
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| Abstract: | Recent research has revealed a pervasive bias for self-relevant information during decision-making, a phenomenon termed the self-prioritization effect. Focusing almost exclusively on between-target (e.g., self vs. friend) differences in task performance, however, this work has overlooked the influence stimulus factors potentially exert during decisional processing. Accordingly, based on pertinent social-psychological theorizing (i.e., Identity-Based Motivation Theory), here we explored the possibility that self-prioritization is sensitive to the identity-based relevance of stimuli. The results of three experiments supported this hypothesis. In a perceptual-matching task, stimulus enhancement was greatest when geometric shapes were associated with identity-related information that was important (vs. unimportant) to participants. In addition, hierarchical drift-diffusion modeling revealed this effect was underpinned by differences in the efficiency of visual processing. Specifically, evidence was extracted more rapidly from stimuli paired with consequential compared to inconsequential identity-related components. These findings demonstrate how identity-relevance moderates self-prioritization. |
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| Keywords: | Self-prioritization Identity-relevance Perceptual matching Drift-diffusion model |
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