The parietal lobe lies behind the central sulcus and above the lateral sulcus, extending back to the parieto-occipital sulcus. It contains the primary somatosensory cortex in the postcentral gyrus and the superior and inferior parietal lobules behind it. It combines touch, body position, vision and hearing to build a sense of where the body is in space.
| Location | Upper lateral part of each hemisphere, between the central sulcus in front and the parieto-occipital sulcus behind |
|---|---|
| Parts | |
| Connections |
|
| Blood Supply | Middle cerebral artery; Anterior cerebral artery (medial surface); Posterior cerebral artery (posterior medial part) |
Processes touch, pain, temperature and body position, integrates sensory information for spatial awareness and attention, and guides reaching and other movements.
Parietal lesions cause loss of fine sensation such as two-point discrimination and object recognition by touch (astereognosis). Non-dominant (usually right) parietal damage classically causes left-sided neglect and dressing apraxia, while dominant parietal damage can cause Gerstmann syndrome. Deep parietal lesions can affect the optic radiation and produce a lower quadrant visual field defect.
Ignoring one side of space and body, most often the left after right parietal stroke.
Finger agnosia, left-right confusion, difficulty writing and difficulty with calculation from dominant inferior parietal damage.
Impaired position sense, two-point discrimination and object recognition by touch despite intact basic sensation.
This website uses cookies to enhance your experience. Some are essential for site functionality, while others help us analyze and improve your usage experience. Please review your options and make your choice.
If you are under 16 years old, please ensure that you have received consent from your parent or guardian for any non-essential cookies.
Your privacy is important to us. You can adjust your cookie settings at any time. For more information about how we use data, please read our privacy policy. You may change your preferences at any time by clicking on the settings button below.
Note that if you choose to disable some types of cookies, it may impact your experience of the site and the services we are able to offer.
Some required resources have been blocked, which can affect third-party services and may cause the site to not function properly.
This website uses cookies to enhance your browsing experience and ensure the site functions properly. By continuing to use this site, you acknowledge and accept our use of cookies.
