brains do we actually have Left and right hemisphere controll different areas of our concious Hemispheres cummunicate using the Corpus collosum and the ID: 919267
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Slide1
The split Brain
How many brains do we actually have?Left and right hemisphere controll different areas of our concious Hemispheres cummunicate using the Corpus collosum and the anterior commissure
Slide2Split Brain Surgery
The corpus callosum is severed to hinder communication between the two hemispheresUsed as a last resort to treat epilepsy Does not remove brain tissue
Slide3Split Brain Syndrome
Ater surgery the hemispheres do not exchange informationCauses patient to suffer from split brain syndrome http://www.youtube.com/watch?v=aCv4K5aStdU
Slide4Roger
Sperry”Hemisphere deconnection and unity in conscious awareness”(1968)
Slide5Aim
Investigate the effects of hemisphere deconnection and to show that each hemisphere has different functions.
Slide6Method
A HANDFUL of patients underwent hemispheric deconnection to reduce crippling epilepsy.NATURAL Experiment.SEVERING of corpus callosum.
Slide7Procedure
Would show different things for each eye.
Slide8Results
Slide9Results
Slide10Why is Split Brain surgery used?
What is Split Brain surgery? ..“Split-brain surgery, also known as corpus callosotomy, is a medical procedure that involves the severing of the corpus callosum, which connects the two hemispheres of the brain, to treat epilepsy. Unlike other epilepsy-treating procedures, a callosotomy does not involve the removal of any brain tissue.”Why is it used? Split brain surgery was first used on humans as a form of an experiment treatment. The experiment was solely for people who suffered from epilepsy whose seizures were ineffective to the help of drugs or other treatment.
Slide11Short History
The idea of the “split brain” was first stumbled upon by Roger Sperry and Ronald Meyers during the late 1950’s. It’s been said that they were working in a laboratory at the time of the discovery. Before any newly discovered medical procedure is incorporated in human testing, Sperry and Meyers first began their early experiments on animals. Such as cats then developing on to study monkeys. In 1961 their research took a serious turn, they had their first human patient to undergo split brain surgery.