Split Brain & Seizures - 1. Why is there electrical...

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1. Why is there electrical activity in the brain? Describe how it is used by neurons. During communication in the brain, the neurons, cells of the brain, “emit a small electrical charge” during their communication with other neurons. 2. What happens in the brain during a seizure? Seizures are a results of an increased amount of electrical activity in the brain. This high level of activity is too high for the brain to conduct normally in. Seizures are a “lapses of consciousness” and can sometimes lead to “convulsions or involuntary movements.” 3. What is epilepsy? How is it diagnosed? Epilepsy is a neurological disorder of the brain that very often results in frequent bouts of seizures. Many times the patient is induced into a seizure using a EEG test and the brain is then studied in an MRI scan to measure brain activity is studied during this period to measure electrical activity. 4. What are the procedures for doing an EEG test and MRI scan? What type of information does each of these tests provide? Usually the tests are done to induce a seizure, so many times, the patients are subjected to flashing lights, increased noise, etc. (protocols that induce over activity in the brain). The
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This note was uploaded on 10/01/2011 for the course PSYCH 1101 taught by Professor Staff during the Spring '11 term at Georgia State University, Atlanta.

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Split Brain & Seizures - 1. Why is there electrical...

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