Final answer:
An injury to the parietal lobe is most likely to affect perception, as this area processes somatosensation and proprioception.
Step-by-step explanation:
An injury to the parietal lobe could affect various sensory and cognitive functions. This region of the cerebral cortex is essential for processing somatosensation, which includes touch, pressure, temperature, and pain. It is also crucial for proprioception, the sense of body position and movement. Given the functions associated with the parietal lobe, an injury to it may specifically impact perception (option 4), which includes the ability to interpret sensory information and understand spatial relationships.