Recent studies have provided evidence for an association between valence and left/right modulated by handedness, which is predicted by the body-specificity hypothesis (Casasanto, 2009) and also reflected in response times. We investigated whether such a response facilitation can also be observed with foot responses. Right-footed participants classified positive and negative words according to their valence by pressing a key with their left or right foot. A significant interaction between valence and foot only emerged in the by-items analysis. However, when dividing participants into two groups depending on the strength of their footedness, an interaction between valence and left/right was observed for strong right-footers, who responded faster with the right foot to positive words, and with the left foot to negative words. No interaction emerged for weak right-footers. The results strongly support the assumption that fluency lies at the core of the association between valence and left/right.
CITATION STYLE
de La Vega, I., Graebe, J., Härtner, L., Dudschig, C., & Kaup, B. (2015). Starting off on the right foot: Strong right-footers respond faster with the right foot to positive words and with the left foot to negative words. Frontiers in Psychology, 6(MAR). https://doi.org/10.3389/fpsyg.2015.00292
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