In future studies, he hopes to figure why gelastic seizures don’t produce some other effect.

They can cause several different types of seizures including a Gelastic Seizure.

Gelastic seizures are not responsive to therapy.

"And when you type in 'laughing episode,' anything to do with unexplained laughter, gelastic seizures came up.

A gelastic seizure is typically caused by a hypothalamic hamartoma, or a brain tumor.

These gelastic seizures involved a sudden burst of energy, usually in the form of laughing or crying and can be uncomfortable.

"The cells are like a little pacemaker that fires abnormal signals and cause a rare kind of gelastic seizure," he said.

Like many other types of seizures, gelastic seizures are hard to control for an extended period of time.

The main sign of a gelastic seizure is a sudden outburst of laughter or crying with no apparent cause.

Gelastic seizures have been observed after taking a birth control pill (Maxim (R)).

He was having a huge amount of fits known as gelastic seizures, characterized by laughing, and they were caused by a brain tumor.

They are called gelastic seizures, and appear as spontaneous, uncontrollable and often maniacal giggles or laughter.

And when you typed in 'gelastic seizures,' benign brain tumor came up, and that's when the magnitude of it really hit us," Williams said.

Earlier research traced these events, more formally called gelastic seizures, to abnormal clumps of neurons in the hypothalamus called hamartomas.

A gelastic seizure, also known as "gelastic epilepsy" is a rare type of seizure that involves a sudden burst of energy, usually in the form of laughing or crying.

If the child has gelastic seizures and precocious puberty, then it is likely that the child will be found to have a hypothalamic hamartoma (a hamartoma in the hypothalamus part of the brain).

The case report described a young Latin American girl whose fits of inappropriate laughter were mistakenly diagnosed as misbehavior or demonic possession, but were found to be gelastic seizures caused by a brain tumor.

In addition, dysprosody has been associated with several other diseases, including Parkinson's Disease, Huntington's Disease, gelastic epilepsy (gelastic seizure), and behavioral disorders such as apathy, akinesia and aboulia.

The most common areas of the brain which give rise to gelastic seizures are the hypothalamus (a small but extremely important structure deep in the centre of the brain), the temporal lobes and the frontal lobes.

Unlike most such growths, a hypothalamic hamartoma is symptomatic; it most often causes gelastic seizures, and can cause visual problems, other seizures, rage disorders associated with hypothalamic diseases, and early onset of puberty.

In looking at 100 cases of children with gelastic seizures who’ve had their brains imaged, Parvizi and his colleagues were able to show that in every case the hamartoma lesions were located in a region known as the mammillary bodies.

Although the tumor is not malignant, it causes a host of problems including early puberty, symptoms of autism and social maladjustment, and gelastic seizures, also called laughing seizures because of the crooked smile that often accompanies them, according to the report.