From the study of brainstem-based models of sleep cycle control, current research is moving toward combined brainstem/forebrain models of sleep cognition. The book presents five papers by contemporary leading scientists, and more than seventy-five commentaries on those papers by nearly all of the other distinguished authorities in the field. Topics include mechanisms of dreaming and REM sleep, memory consolidation in REM sleep, and an evolutionary hypothesis of the function of dreaming. The papers and commentaries, together with the authors' rejoinders, represent significant advances in the understanding of the sleeping and dreaming brain.

Movement is arguably the most fundamental and important function of the nervous system, since the organism cannot exist without it. Purposive movement requires the coordination of actions within many areas of the cerebral cortex, cerebellum, basal ganglia, spinal cord, and peripheral nerves and sensory receptors, which together must control a highly complex biomechanical apparatus made up of the skeleton and muscles. Beginning at the level of biomechanics and spinal reflexes and proceeding upward to brain structures in the cerebellum, brainstem, and cerebral cortex, the chapters in this volume of a special issue of Behavioral and Brain Sciences devoted to this topic highlight important issues in movement control. Commentaries provide a balanced treatment of the articles by experts in a variety of areas related to movement, including behavior, physiology, robotics, and mathematics.

This book was first published in 1988. B. F. Skinner was arguably the most important and influential psychologist of the last century. Yet in his long and distinguished career he consistently declined to be engaged by his critics. In his ninth decade, he elected to confront them all: cognitivists, ethologists, brain scientists, biologists, linguists, and philosophers - close to one hundred and fifty scientists and scholars from the entire spectrum of behavior-related disciplines around the world. Skinner's views on consciousness, language, problem solving, evolution, biology, brain function, computers, theory and explanation, presented in six seminal papers, are analyzed, criticized and explained in the 'open peer commentary' format of the Behavioral and Brain Sciences journal. The result is a remarkably lucid and revealing historical record of Skinnerian thinking and its impact on psychology and its allied disciplines. General readers, students, professionals and historians will find this unique intellectual exchange an invaluable resource.