The brain is comprised of functional networks that are involved in a vast number of functions. Distributed systems potentially promote the emergence of novel functions by reusing and reassembling phylogenetically older motor processes. This suggests that numerous networks may encompass a core component, potentially acting as a building block for higher-order cognition. It is therefore assumed that basic sensorimotor processes, such as motor planning, may underlie cognitive functions including mental rotation. This thesis aimed to provide stronger evidence for the link between motor planning and mental rotation by investigating their shared neural resources and predictability.