How Body Feedback Influences Consumers’ Evaluation of Products

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Abstract
Two experiments explored the effect of unobtrusively induced expressions of approach and avoidance on consumers' evaluation of well-known products. In Study 1, valenced objects were presented moving horizontally or vertically on a screen, thereby inducing either head shaking or head nodding. Objects were also presented without movement. Induced nodding led to more favorable evaluations of positively valenced products but did not affect the evaluation of negatively valenced ones. Similarly, head shaking led to more unfavorable evaluations of negatively valenced products but did not affect the evaluation of positive ones. In Study 2, participants evaluated positively valenced products more favorably when they flexed their arms while making the evaluation and evaluated negatively valenced products more unfavorably when they extended their arms during evaluation. However, arm flexion had no effect on evaluations of negative products, and arm extensions had no effect on evaluations of positive ones. Participants' willingness to buy the products followed a similar pattern. The theoretical implications and the applications of these body feedback effects are discussed.