Damage to which region is most commonly associated with hemispatial neglect?

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Hemispatial neglect stems from disruption of spatial attention networks in the parietal lobe. When this region—especially the right side—is damaged, a person may fail to notice or respond to stimuli on the contralateral side of space, typically the left, even though basic vision and other senses are intact. The parietal cortex integrates sensory information to build a map of the surroundings and directs attention to different locations; injury here disrupts that map, leading to inattention to part of the field. The right parietal lobe often has a dominant role in attending to both sides of space, so damage there more commonly produces left-sided neglect. Other lobes have different primary roles—temporal for memory and object recognition, occipital for basic visual processing, and frontal for planning and initiation—so they do not characteristically produce hemispatial neglect.