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- Posterior_parietal_cortex abstract "The posterior parietal cortex (the portion of parietal neocortex posterior to the primary somatosensory cortex) plays an important role in producing planned movements. Before an effective movement can be initiated, the nervous system must know the original positions of the body parts that are to be moved, and the positions of any external objects with which the body is going to interact. The posterior parietal cortex receives input from the three sensory systems that play roles in the localization of the body and external objects in space: the visual system, the auditory system, and the somatosensory system. In turn, much of the output of the posterior parietal cortex goes to areas of frontal motor cortex: the dorsolateral prefrontal cortex, various areas of the secondary motor cortex, and the frontal eye field. fMRI studies in monkeys and TMS studies in humans indicate that the posterior parietal cortex comprises a mosaic of small areas, each specialized for guiding particular movements of eyes, head, arms or hands.Damage to the posterior parietal cortex can produce a variety of sensorimotor deficits, including deficits in the perception and memory of spatial relationships, in accurate reaching and grasping, in the control of eye movement, and in attention. The two most striking consequences of PPC damage are apraxia and hemispatial neglect.Some sources say that the PPC consists of Brodmann area 5 and Brodmann area 7. Other sources say it is only area 7.There is also evidence indicating that it plays a role in perception of pain.Recent findings have suggested that feelings of "free will" at least partially originate in this area.One study found that novice artists have increased blood flow in the right posterior parietal compared to expert artists when challenged with art-related tasks.During a study conducted by neuroscientists at New York University, published in 2012 in the journal Neuron, a significant amount of coherent patterns of firing of neurons in the brain's PPC were discovered. To reach this conclusion, the NYU researchers had examined the neurological activity of macaque monkeys while having them perform a variety of tasks that required them to either reach and to simultaneously employ rapid eye movements or to only use rapid eye movements, in which were known as saccades. The coherent pattern of the firing of neurons in the PPC were only seen when both the eyes and arms were required to move for the same task, but not for tasks that involved only saccades.In neuroimaging studies, this region, particularly the angular gyrus is active when individuals have strong recollections of episodic memory.".
- Posterior_parietal_cortex thumbnail Lobes_of_the_brain_NL.svg?width=300.
- Posterior_parietal_cortex wikiPageExternalLink electrical_stimulation_produces_feelings_of_free_will.php.
- Posterior_parietal_cortex wikiPageID "11134503".
- Posterior_parietal_cortex wikiPageLength "5586".
- Posterior_parietal_cortex wikiPageOutDegree "18".
- Posterior_parietal_cortex wikiPageRevisionID "678404446".
- Posterior_parietal_cortex wikiPageWikiLink Angular_gyrus.
- Posterior_parietal_cortex wikiPageWikiLink Apraxia.
- Posterior_parietal_cortex wikiPageWikiLink Brodmann_area_5.
- Posterior_parietal_cortex wikiPageWikiLink Brodmann_area_7.
- Posterior_parietal_cortex wikiPageWikiLink Category:Cerebrum.
- Posterior_parietal_cortex wikiPageWikiLink Dorsolateral_prefrontal_cortex.
- Posterior_parietal_cortex wikiPageWikiLink Episodic_memory.
- Posterior_parietal_cortex wikiPageWikiLink FMRI.
- Posterior_parietal_cortex wikiPageWikiLink Frontal_eye_field.
- Posterior_parietal_cortex wikiPageWikiLink Frontal_eye_fields.
- Posterior_parietal_cortex wikiPageWikiLink Functional_magnetic_resonance_imaging.
- Posterior_parietal_cortex wikiPageWikiLink Hemispatial_neglect.
- Posterior_parietal_cortex wikiPageWikiLink Macaque.
- Posterior_parietal_cortex wikiPageWikiLink Motor_cortex.
- Posterior_parietal_cortex wikiPageWikiLink New_York_University.
- Posterior_parietal_cortex wikiPageWikiLink Parietal_lobe.
- Posterior_parietal_cortex wikiPageWikiLink Postcentral_gyrus.
- Posterior_parietal_cortex wikiPageWikiLink Saccade.
- Posterior_parietal_cortex wikiPageWikiLink Saccades.
- Posterior_parietal_cortex wikiPageWikiLink Secondary_motor_cortex.
- Posterior_parietal_cortex wikiPageWikiLink Transcranial_magnetic_stimulation.
- Posterior_parietal_cortex wikiPageWikiLinkText "Posterior parietal cortex".
- Posterior_parietal_cortex wikiPageWikiLinkText "Postparietal Cortex".
- Posterior_parietal_cortex wikiPageWikiLinkText "parietal cortex".
- Posterior_parietal_cortex wikiPageWikiLinkText "posterior cortex".
- Posterior_parietal_cortex wikiPageWikiLinkText "posterior parietal cortex".
- Posterior_parietal_cortex caption "Lateral surface of the brain with Brodmann's areas numbered.".
- Posterior_parietal_cortex caption "Lobes of the brain. Parietal lobe is yellow, and the posterior portion is near the red region.".
- Posterior_parietal_cortex hasPhotoCollection Posterior_parietal_cortex.
- Posterior_parietal_cortex image "Gray726-Brodman.svg".
- Posterior_parietal_cortex latin "Cortex parietalis posterior".
- Posterior_parietal_cortex name "Posterior parietal cortex".
- Posterior_parietal_cortex wikiPageUsesTemplate Template:Infobox_brain.
- Posterior_parietal_cortex wikiPageUsesTemplate Template:Reflist.
- Posterior_parietal_cortex wikiPageUsesTemplate Template:Telencephalon.
- Posterior_parietal_cortex subject Category:Cerebrum.
- Posterior_parietal_cortex type AnatomicalStructure.
- Posterior_parietal_cortex type Brain.
- Posterior_parietal_cortex type Thing.
- Posterior_parietal_cortex type Q4936952.
- Posterior_parietal_cortex comment "The posterior parietal cortex (the portion of parietal neocortex posterior to the primary somatosensory cortex) plays an important role in producing planned movements. Before an effective movement can be initiated, the nervous system must know the original positions of the body parts that are to be moved, and the positions of any external objects with which the body is going to interact.".
- Posterior_parietal_cortex label "Posterior parietal cortex".
- Posterior_parietal_cortex sameAs Corteccia_parietale_posteriore.
- Posterior_parietal_cortex sameAs Cortex_parietalis_posterior.
- Posterior_parietal_cortex sameAs m.047gn29.
- Posterior_parietal_cortex sameAs Задняя_теменная_кора.
- Posterior_parietal_cortex sameAs คอร์เทกซ์กลีบข้างส่วนหลัง.
- Posterior_parietal_cortex sameAs Q3486606.
- Posterior_parietal_cortex sameAs Q3486606.
- Posterior_parietal_cortex wasDerivedFrom Posterior_parietal_cortex?oldid=678404446.
- Posterior_parietal_cortex depiction Lobes_of_the_brain_NL.svg.
- Posterior_parietal_cortex isPrimaryTopicOf Posterior_parietal_cortex.
- Posterior_parietal_cortex name "Cortex parietalis posterior".
- Posterior_parietal_cortex name "Posterior parietal cortex".