What has the case of Phineas Gage taught psychologists about the human brain?

Damasio, H., Grabowski, T., Frank, R., Galaburda, A.M., &Damasio, A.R. (1994). The return of Phineas Gage: Clues about the brain from the scull of a famous patient. Science, 264 (5162), 1102-1105

Nwil, G.A. (2006). Human Neuropsychology. U.K. Pearson Education Limited. see pages 194-196 & 203-204

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