Appetitive and impulsive components in the Appetitive Motivation Scale |
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Authors: | Luigi Leone Fridanna Maricchiolo Fabio Presaghi |
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Institution: | aDepartment of Developmental and Social Psychology, “Sapienza” University of Rome, Italy;bDepartment of Cultural and Educational Studies, Experimental Psychology Laboratory, University of Roma Tre, Italy |
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Abstract: | Measures of the Behavioral Activation System (BAS) often conflate reward-reactivity (the core of the BAS) and impulsivity-related variance. The Appetitive Motivation Scale (AMS), a recently-developed BAS measure, has been proposed as a one-dimensional scale which deals exclusively with core reward-reactivity. However, we show here how a two-dimensional interpretation of the scale reveals components which are linked with both the core of the BAS and impulsivity. A clear pattern of associations and dissociations with other BAS- and impulsivity-related measures provides support for such a two-dimensional interpretation. The results are discussed, highlighting the parallels between the AMS structure and other BAS-related measures, and emphasizing the theoretical challenges which are inherent in developing reliable BAS-related personality measures. |
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Keywords: | BAS Impulsivity Reinforcement Sensitivity Theory Structural equation modeling Personality |
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