Makris et al. found that the nature of an object presented before a high or low tone primed participants to use a precision or a power grip in responding to the tones, but only when binocular vision was used. Their explanation for this was that:

Question

Quizplus · Accepted Answer

Binocular viewing enhances the perception of the three-dimensional (3D) nature of objects, making it easier for participants to associate specific grips with the objects they see. This depth perception is crucial for determining how to interact physically with objects in our environment.

Makris Et Al