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Abnormally excessive or synchronous neuronal activity in the brain can cause seizures. These symptoms are characteristic of the neurological disorder known as epilepsy. Epilepsy is typically diagnosed with an EEG test. [6] However, the effectiveness of MEG in the diagnosis of neocortical epilepsy has also been established. [7]
By recording the event in question on video and EEG simultaneously, a clear diagnosis can usually be obtained. [23] Laboratory testing can detect rising blood levels of serum prolactin if samples are taken in the right time window after most tonic-clonic or complex partial epileptic seizures. However, due to false positives and variability in ...
EEG can detect abnormal electrical discharges such as sharp waves, spikes, or spike-and-wave complexes, as observable in people with epilepsy; thus, it is often used to inform medical diagnosis. EEG can detect the onset and spatio-temporal (location and time) evolution of seizures and the presence of status epilepticus.
Classified as a "conversion disorder" by the DSM-IV, a psychogenic disease is a condition in which mental stressors cause physical symptoms matching other disorders. The manifestation of physical symptoms without biologically identifiable cause results from disruptions in normal brain function due to psychological stress.
In newly diagnosed epilepsy, magnetic resonance imaging (MRI) can detect brain lesion in up to 12 to 14% of persons with epilepsy. [31] However, for those with chronic epilepsy, MRI can detect brain lesion in 80% of the persons with epilepsy. [31] 3-Tesla MRI scan is advised for those with evidence of focal epilepsy such as temporal lobe ...
Brunner syndrome is a rare genetic disorder associated with a mutation in the MAOA gene.It is characterized by lower than average IQ (typically about 85), problematic impulsive behavior (such as pyromania, hypersexuality and violence), sleep disorders and mood swings.
The symptoms of PBA can be severe, with persistent and unremitting episodes. [4] Characteristics include: The onset can be sudden and unpredictable, and has been described by some patients as coming on like a seizure; The outbursts have a typical duration of a few seconds to several minutes; and, The outbursts may happen several times a day.
Seizures originate in the occipital lobe and account for 5 to 10 percent of all epileptic seizure types. Generally, this type of epilepsy can have an onset anywhere from 1–17 years old in children, but the patient prognosis is good. Since the event is located in the occipital lobe, symptoms may occur spontaneously and include visual stimuli.