Figure 2.

(Left) The RT effect for the study published by Vainio et al. (2017a). In the experimental task, the participants were presented with an image of a hand-shaped into the precision or power grip. The participants had to respond, as quickly as possible, by vocalizing the [i] or [o] according to the perspective (above/front) of a hand. [i] responses were produced particularly rapidly when the hand was shaped into the precision grip, and [o] was produced particularly rapidly when the hand was shaped into the power grip. (Right) The RT effect for study published by Vainio et al. (2019a). In the experimental task, the participants were presented with an image of an object whose size was compatible with the precision or power grip. The participants had to respond by vocalizing [i] or [a] according to the category of the object (manufactured/natural). [i] responses were produced particularly rapidly when the object’s size was compatible with the precision grip, while [a] responses were produced particularly rapidly when the size was compatible with the power grip. Asterisks indicate statistically significant differences (^*** p<0.001; ^** p<0.01).