Irrelevance and Innovation: The Contributions of the Hippocampus and Limbic Forebrain to the Processing of Context

What happens to sensory stimuli that have become habituated? Do they fail to influence perception and behavior? Many observations and experiments indicate that habituated sensory events, called S delta in operant behaviorism and negative instances in mathematical psychology, continue to shape the course of learning and, in general, to act as a contextual guide behavior.