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Unformatted text preview: Methods of studying the nervous system The Anatomical Method involves staining neurons and then tracing their pathways. This method enables researchers to map and make detailed constructs of the topography of the brain. The method of Extirpation involves cutting out or destroying brain tissue. Lashley used this method. He would teach a rat a task, such as solving a maze. He would then make a lesion in one of the so called association areas of the cerebral cortex in an attempt to determine where that particular bit of learned behavior was stored. Electroencephalograph or EEG. The EEG records electrical signals (brain waves) emanating from the brain. Normal brain wave patterns can be identified as well as abnormal patterns. There are four main wave forms. Alpha waves have a frequency of 7 to 14 cycles per second (cps) and tend to be associated with...
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- Spring '11