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Split-brain or callosal syndrome is a type of disconnection syndrome when the corpus callosum connecting the two hemispheres of the brain is severed to some degree. It is an association of symptoms produced by disruption of, or interference with, the connection between the hemispheres of the brain.
Callosal syndrome, or split-brain, is an example of a disconnection syndrome from damage to the corpus callosum between the two hemispheres of the brain. Disconnection syndrome can also lead to aphasia , left-sided apraxia , and tactile aphasia, among other symptoms.
Sperry studied patients who had undergone corpus callosotomy and detailed their resulting split-brain characteristics. [2] Improvements to surgical techniques, along with refinements of the indications, have allowed van Wagenen's procedure to endure; corpus callosotomy is still commonly performed throughout the world. [5]
One finding among split-brain patients is that many of them feel normal after the surgery and do not feel that their brains are "split". [8] The corpus callosotomy and commissurotomy have been successful in reducing, and in some cases, eliminating epileptic seizures. This aligns with Van Wagenen's theory. [citation needed]
Electroencephalography is used to find the source of electrical activity causing a seizure as part of the surgical evaluation for a corpus callosotomy. The symptoms of refractory (difficult to treat) epilepsy can be reduced by cutting through the corpus callosum in an operation known as a corpus callosotomy lobotomy paralysis. [ 28 ]
Different activities had varying effects on participants’ brain waves. Playing and walking with a dog increased the strength of the alpha-band oscillations, the authors found, which generally ...
Research by Michael Gazzaniga and Roger Wolcott Sperry in the 1960s on split-brain patients led to an even greater understanding of functional laterality. Split-brain patients are patients who have undergone corpus callosotomy (usually as a treatment for severe epilepsy), a severing of a large part of the corpus callosum. The corpus callosum ...
The similar brain functions and behaviors of dogs with CCD and humans with OCD suggests they have a connection, not only in behavior and symptoms, but in reacting to treatments. Understanding Canine Compulsive Disorder in dogs has helped scientists to better understand and apply their learning to developing new and more effective ways to treat ...