Epileptic seizures occur due to changes in the brain that result in the lowering of the seizure threshold in a particular individual making that person vulnerable to recurring seizures. These changes can be a result of a structural abnormality, brain lesions, or simply a genetic disposition to seizures. In<unk>  epilepsy, these changes in the brain result in a small area that is capable of interrupting normal firing patterns and more likely to produce the synchronous firing patterns that characterize a seizure. These hyper-excitable areas may then be activated by certain stimuli resulting in a<unk> .<unk> s are thus notable because the presentation of a particular stimulus, that activates the hyper-excitable areas of the brain, directly overcomes the seizure threshold, and results in a<unk> . The activation of the hyper-excitable areas of the brain are additionally regulated by facilitating factors that may increase the likelihood of eliciting a seizure. Most commonly these include fatigue, sleep deprivation, or stress. Facilitating factors are different for each individual. Due to the large variance between the different kinds of<unk>  epilepsies, the specific mechanism causing<unk> s may vary.
Reflex seizure
Musicogenic seizure
Gelastic seizure
Non-epileptic seizure
Absence seizure
Focal seizure
Atonic seizure
Febrile seizure