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This disorder is often associated with brain lesions in the dominant (usually left) hemisphere including the angular and supramarginal gyri (Brodmann area 39 and 40 respectively) near the temporal and parietal lobe junction. There is significant debate in the scientific literature as to whether Gerstmann syndrome truly represents a unified ...
The causes of frontal lobe disorders can be closed head injury. An example of this can be from an accident, which can cause damage to the orbitofrontal cortex area of the brain. [2] Cerebrovascular disease may cause a stroke in the frontal lobe. Tumours such as meningiomas may present with a frontal lobe syndrome. [11]
The distinction between neurological and mental disorders can be a matter of some debate, either in regard to specific facts about the cause of a condition or in regard to the general understanding of brain and mind. [citation needed] Impacts. The consequences of neurological disorders extend beyond medical diagnosis.
Brain lesions are sometimes intentionally inflicted during neurosurgery, such as the carefully placed brain lesion used to treat epilepsy and other brain disorders. These lesions are induced by excision or by electric shocks (electrolytic lesions) to the exposed brain or commonly by infusion of excitotoxins to specific areas. [medical citation ...
Callosal disconnection syndrome is characterized by left ideomotor apraxia and left-hand agraphia and/or tactile anomia, and is relatively rare. [ citation needed ] Other examples include commissurotomy , the surgical cutting of cerebral commissures to treat epilepsy and callosal agenesis which is when individuals are born without a corpus ...
The video has a speed of 50x to better appreciate the SDs through human eye. Pictures are dynamically subtracted to a reference picture 40 s before. First we see the initial area of change at the exact moment where the left MCAs are occluded. The area is highlighted with a white line. Later we appreciate the signal produced by SDs. [2]
Somatosensory mapping involves measuring electrical responses on the surface of the brain as the result of the stimulation of peripheral nerves, such as mechanoreceptors that respond to pressure on the skin, and stimulating the brain directly to map sensory areas. Sensation has been tested in patients through the stimulation of the postcentral ...
DBS involves the implantation of electrodes called neurostimulators, which sends electrical impulses to specific parts of the brain. [164] DBS for the subthalamic nucleus and globus pallidus interna has high efficacy for up to 2 years, but longterm efficacy is unclear and likely decreases with time. [ 164 ]