1 / 11

Understanding Split Brain Surgery: Effects and History

Explore the split brain phenomenon, its surgical procedure, and historical background. Learn why it's used, its effects on consciousness, and the significance of the corpus callosum. Discover how research on animals led to human experimentation in treating epilepsy.

tcisco
Download Presentation

Understanding Split Brain Surgery: Effects and History

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The split Brain • Howmanybrains do weactuallyhave? • Left and right hemispherecontroll different areas of ourconcious • Hemispherescummunicateusing the Corpus collosum and the anteriorcommissure

  2. Split Brain Surgery • The corpus callosum is severedto hinder communicationbetween the twohemispheres • Used as a last resorttotreatepilepsy • Does not removebraintissue

  3. Split Brain Syndrome • Atersurgery the hemispheres do not exchange information • Causes patient tosuffer from split brainsyndrome • http://www.youtube.com/watch?v=aCv4K5aStdU

  4. Roger Sperry ”Hemispheredeconnection and unity in consciousawareness” (1968)

  5. Aim • Investigate the effects of hemisphere deconnection and to show that each hemisphere has different functions.

  6. Method • A HANDFUL of patients underwenthemisphericdeconnectiontoreducecripplingepilepsy. • NATURAL Experiment. • SEVERING of corpus callosum.

  7. Procedure • Would show different things for eacheye.

  8. Results

  9. Results

  10. Why 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.

  11. Short 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.

More Related