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Associations Between Hemispheric Superiority and Self-Handicapping in Young Adults
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1
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| Subject:
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Cognitive-Social Applications of Brain Mapping, such as talent identification, neuroleadership, and neurocognitive recruitment
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Presenter Author:
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| Name:
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Mohammad Kazemi
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Author:
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| Name 1:
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Mohammad Kazemi - Corresponding - Presenter
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| Affiliation 1:
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M.Sc. Student in Sport Psychology, Faculty of Sport Sciences and Health, University of Tehran, Tehran, Iran
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| Name 2:
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Farshid Tahmasbi
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| Affiliation 2:
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associate professor of Motor behavior, Shahid Rajaee Teacher Training University, Tehran, Iran
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| Name 3:
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Farzaneh Hatami
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| Affiliation 3:
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Associate Professor of Motor Behavior, Shahid Rajaee Teacher Training University, Tehran, Iran
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Abstract
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Original Research
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introduction :
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Hemispheric lateralization is a fundamental characteristic of brain organization and has been linked to individual differences in cognitive and emotional processing. While hemispheric dominance has been widely investigated, its association with defensive self-regulatory strategies such as self-handicapping remains insufficiently explored. Self-handicapping is a cognitive–behavioral strategy used to protect self-esteem under conditions of evaluative threat. From a neurocognitive perspective, hemispheric dominance may influence emotional sensitivity and threat processing, thereby shaping defensive behavior. The present study examined differences in self-handicapping between individuals with left and right hemispheric dominance.
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Methods:
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This cross-sectional study included 255 high school and university students classified as having either left hemispheric dominance (n = 91) or right hemispheric dominance (n = 164). Self-handicapping was assessed using the Jones and Rhodewalt Self-Handicapping Scale. Hemispheric dominance was measured using the Wagner–Wells Hemispheric Superiority Questionnaire (Rudolf Wagner & Kelly Wells), which classifies individuals into left or right dominant hemispheric profiles based on cognitive and behavioral preferences. Group differences in self-handicapping were examined using an independent-samples t-test. Effect sizes were calculated using Cohen’s d. Statistical analyses were conducted using SPSS, with significance set at p < .05.
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Results:
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Descriptive analyses indicated that individuals with right hemispheric dominance reported higher self-handicapping scores (M = 56.20, SD = 12.46) compared to those with left hemispheric dominance (M = 52.45, SD = 13.72). Levene’s test confirmed homogeneity of variances (p = .239). The independent-samples t-test revealed a statistically significant difference between groups, t(253) = −2.22, p = .027. The effect size was small to moderate (Cohen’s d = 0.29), indicating greater self-handicapping among right-dominant participants.
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Conclusion:
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The findings suggest that right hemispheric dominance is associated with higher levels of self-handicapping compared to left hemispheric dominance. This relationship may reflect increased sensitivity to evaluative threat and emotional processing linked to right-hemispheric functioning, leading to greater reliance on defensive self-regulatory strategies. These results contribute to a deeper understanding of the neurocognitive correlates of self-handicapping and highlight hemispheric dominance as an important individual-difference factor.
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| Attachment:
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| Keywords:
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Hemispheric Specialization, Brain Lateralization, Self-Handicapping, Defensive Behavior, Students
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| Key message:
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