Mice communicate through visual, vocal, and olfactory cues that influence innate, nonassociative behavior. We here report that exposure to a recently fear-conditioned familiar mouse impairs acquisition of conditioned fear and facilitates fear extinction, effects mimicked by both an olfactory chemosignal emitted by a recently fear-conditioned…

Author critically comments on D.W. Hamlyn's work on human learning which borrows from the classical philosophies of rationalism and empiricism. These lack a proper biological perspective for man and an adequate appreciation of man's social nature. The author discusses animal-like instinctive behavior and specifically social learning. For journal…

This paper introduces seven principles of learning, enduring over the last five centuries of psychological thought, to discuss the evolution of the "Biophyche" (the brain in action) in the development of humans and other large organisms. It describes the conditioning theories of Darwin, Pavlov, and Thorndike and critically reviews the…