Fancher describes Wilder Penfield’s work at McGill in the 1950s probing the cerebral cortex of epilepsy patients with a weak electric current. Discuss Penfield’s aims in carrying out those procedures.will give more information.They should be double-spaced and 1½ to 2 ½ pages in length. The minimum acceptable length is 350 words (with a range of roughly 350-500 words, though there is no upper limit). Try to make a good impression on the reader with correct spelling and grammar. When you quote material from other sources, be sure to use quotation marks or indentation to indicate that you are quoting, and provide a specific citation of the source.