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Laterality. 2010 Jul;15(4):426-38. doi: 10.1080/13576500902953823. Epub 2009 Jul 22.

Affective imposition influences risky choice: handedness points to the hemispheres.

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  • 1Department of Psychology, Appalachian State University, 222 Joyce Lawrence Lane. Boone, NC 28608, USA.


The study of risk preference has become a widely investigated area of research. The current study is designed to investigate the relationship between handedness, hemispheric predominance and valence imposition in a risky-choice decision task. Research into the valence hypothesis (e.g., Ahern & Schwartz, 1985; Davidson, 1984) has shown that the left hemisphere is more active in processing positively valenced stimuli, whereas the right hemisphere is more active in processing negatively valenced stimuli. A total of 520 individuals (343 female, 117 male) participated in a self-imposed framing task and took a degree of handedness questionnaire. The results of the framing task and handedness questionnaire showed that participants' degree of handedness significantly influenced the positive/negative valence they imposed onto the framing task as well as their level of risk preference.

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