Since its early development, neuropsychology has examined the manner in which cognitive abilities are mediated by the brain. fudeed, all of neuropsy­ chology, and especially clinical neuropsychology, could be subsumed under this general investigation. However, a variety of factors impeded the close as­ sociation of neuropsychologists and cognitive/experimental psychologists. These factors were prominent influences in both camps, which kept the study of cognition away from a consideration of biological foundations and kept neuropsychology theoretically impoverished. In recent years, these factors have diminished and "cognitive neuropsychology" has become a popular term to describe the new movements to join the study of cognition with the study of brain function. The factors which kept these areas separate were manifestations of his­ torical trends and represent a social distance which largely happened by acci­ dent. The first and perhaps most important factor was that early investigators of cognition and brain function were not psychologists. Most were neurolo­ gists or otlier neuroscientists who were excellent observers of behavior fol­ lowing brain injury but had virtually no…

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