Santa Lucia - Neurosciences and Rehabilitation Sapienza University of Rome

Exp Brain Res. 2007 Oct;183(1):1-7. Epub 2007 Jul 21

The influence of hands posture on mental rotation of hands and feet

Behavioural and functional neuroanatomy studies demonstrate that mental rotation of body parts is carried out through a sort of inner motor simulation. Here we examined whether changes of hands posture influence the mental rotation of hands and feet. Twenty healthy subjects were asked to verbally judge the laterality of hands and feet pictures in two different postural conditions. In one condition, subjects kept hands on their knees in anatomical position; in the other, their hands were kept in an unusual posture with intertwined fingers, behind the back. Results show that mental rotation of hands but not of feet was influenced by changes in hands posture. Indeed, while mental rotation of hands was faster in the front than in the back hands position, no similar effect was found when mentally rotating feet. Thus, sensory-motor and postural information coming from the body may influence mental rotation of body parts according to specific, somatotopic rules.

 Download fulltext

This website uses technical cookies and third party cookies. By closing this banner, scrolling this page or by clicking any of its elements you consent to the use of cookies. If you want to know more or refuse consent to all or some cookies, please see the Cookie Policy. TRADUCI IN ITALIANO