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Lateral temporal lobe seizures arising from the temporal-parietal lobe junction may cause complex visual hallucinations. [2] In comparison to mesial temporal lobe seizures, lateral temporal lobe seizures are briefer duration seizures, occur with earlier loss of awareness, and are more likely become a focal to bilateral tonic-clonic seizure. [2]
Hippocampal sclerosis is the most common brain abnormality in those with temporal lobe epilepsy. [16] Hippocampal sclerosis may occur in children under 2 years of age with 1 instance seen as early as 6 months. [17] About 70% of those evaluated for temporal lobe epilepsy surgery have hippocampal sclerosis.
Mesial temporal lobe epilepsy with hippocampal sclerosis is one of the most common causes of drug resistant epilepsy in adults and can also be seen in children. Seizures arise from the mesial temporal structures (e.g., the hippocampus, amygdala, and parahippocampal gyrus) and often begin with autonomic (rising sensation from the abdomen to the ...
However, the "reason for the close relationship of TEA with sleep is unclear. It may be that the transition from sleep to waking acts as a trigger to a seizure focus in the medial temporal lobe. Alternatively, amnesia upon waking may reflect persistent post-ictal dysfunction of medial temporal lobe structures following a seizure during sleep." [2]
Spread to produce symptoms of temporal lobe involvement is exceptional and may indicate a symptomatic cause. [ citation needed ] Post-ictal headache , mainly diffuse, but also severe, unilateral and pulsating, or indistinguishable from migraine headache , occurs in half the patients, in 10% of whom it may be associated with nausea and vomiting.
Temporal lobe epilepsy is a chronic neurological condition characterized by recurrent seizures; symptoms include a variety of sensory (visual, auditory, olfactory, and gustation) hallucinations, as well as an inability to process semantic and episodic memories. [24] Schizophrenia is a severe psychotic disorder characterized by severe ...
A seizure is a paroxysmal episode of symptoms or altered behavior arising from abnormal excessive or synchronous brain neuronal activity. [5] A focal onset seizure arises from a biological neural network within one cerebral hemisphere, while a generalized onset seizure arises from within the cerebral hemispheres rapidly involving both hemispheres.
Despite the lack of evidence linking seizure type to mental health, patients with frontal-lobe epilepsy have been reported to score lower on depression scales than those with temporal-lobe epilepsy. Aggression, confusion, and hyperactivity in children with epilepsy are signs of pre-ictal psychiatric symptoms that are considered to be associated ...
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