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Mechanical Engineering Graduate Theses & Dissertations

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On The Generalization Of Decision-Making Preferences In Movement Under Risk, Megan Kathleen O'Brien Jan 2014

On The Generalization Of Decision-Making Preferences In Movement Under Risk, Megan Kathleen O'Brien

Mechanical Engineering Graduate Theses & Dissertations

Nearly every aspect of our behavior is framed by risk, and people can respond to risk very differently. Some individuals readily confront highly variable situations in order to obtain large rewards (risk-seeking behavior), while others prefer more certain situations even if it means obtaining smaller rewards (risk-averse behavior).

At present, the role that risk plays in movement decisions is poorly understood. This dissertation investigates human movement decisions under risk, exploring the rationality of movement behavior in risky constructs and whether sensitivity to risk generalizes across movements. In the first study, I compared risk-sensitivity between two continuous motor tasks (arm-reaching and ...