The Frontal Granular Cortex and Behavior.

The papers collected in this monograph, the result of a symposium at the Pennsylvania State University in 1962, are of a high level of sophistication and provide a noteworthy contribution to the subject. In spite of the fact that there is a unifying theme running through the book, the nonspecialist in the field would benefit greatly from a formal attempt at a summary or synthesis. The book may conveniently be divided into three sections: anatomy, infrahuman observations, and human observations. Anatomical data are provided in two excellent papers, which might have been placed in the beginning of the book rather than the end for orientation purposes. Konrad Akert discusses the corticopetal projections, using the retrograde degeneration technique, and shows the precise dependency of Area 8, 9, and orbital cortex on paralamellar, parvocellular, and magnocellular parts of thalamic nucleus medialis dorsalis, respectively. Walle Nauta, with his usual thoroughness and clarity