Impulsivity and reward sensitivity within the pen model: A test of discriminant hypotheses |
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| Authors: | Paolo M. Russo Luigi Leone Marco Lauriola Fabio Lucidi |
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| Affiliation: | aDepartment of Psychology, University of Bologna, Viale Berti Pichat 5, 40127 Bologna, Italy;bDepartment of Social and Developmental Psychology, University of Rome “La Sapienza”, Italy;cDepartment of Psychology, University of Rome “La Sapienza”, Italy |
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| Abstract: | Impulsivity and reward sensitivity are often treated as interchangeable constructs. This conflation may be traced back to Gray’s interpretation of impulsivity as the trait level manifestation of the Behavioral Activation System (BAS), that mediates sensitivity to rewards. In this study (N = 696) we evaluated discriminant hypotheses regarding the relationships between BAS-mediated reward sensitivity, impulsivity and Eysenck’s PEN superfactors. We hypothesized that reward sensitivity would be mainly linked with Extraversion, and that impulsivity would be primarily connected with Psychoticism. Hypotheses were tested using structural equation modelling and equality constraints tests. Results mostly supported our expectations: reward sensitivity was more strongly related to Extraversion than to the other PEN superfactors, while impulsivity was more strongly related to Psychoticism and Neuroticism. Implications for BAS and impulsivity research are discussed. |
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| Keywords: | Impulsivity Reward sensitivity Pen model BAS Structural equation modelling |
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