The neurobiology of learning and memory is entering a new interdisciplinary era.Advances in neuropsychology have identified regions of brain tissue that are critical forcertain types of function. Electrophysiological techniques have revealed behavioralcorrelates of neuronal activity. Studies of synaptic plasticity suggest that somemechanisms of memory formation may resemble those of neural development. And molecularapproaches have identified genes with patterns of expression that influence behavior. Itis clear that future progress depends on interdisciplinary investigations. The currentliterature of learning and memory is large but fragmented. Until now, there has been nosingle journal devoted to this area of study and no dominant journal that demandsattention by serious workers in the area, regardless of specialty. Learning& Memoryprovides a forum for these investigations in the form of research papers and review articles.