Behavioral and Brain Sciences

Short Communication

Emotional networks: The heart of brain design

John C. Fentress a1
a1 Department of Psychology, University of Oregon, Eugene, OR 97403


The concept of emotion as defined by Rolls is based upon reinforcement mechanisms and their underlying neural networks. He shows how these networks process signals at many levels, through both separate and convergent pathways essential for adaptive action. While many behavioral issues related to emotion are omitted from his review, he succeeds admirably in summarizing both the “current state of the art” in single unit analyses and in pointing out how future research directions may be crafted.