The best-selling Penguin Dictionary of Psychology has now been fully revised and updated to include the most up-to-the-minute information in the areas of psychology, psychiatry and related fields, including neuroscience and social psychology. Wide-ranging and accessible to the broadest possible audience, this invaluable work has become a byword for demystifying the language of psychology. * Contains over 17,000 definitions as well as a detailed appendix on phobias * Entries also describe the way a term is employed, its wider connotations and past usage * Lists terms that are given more in-depth explanation, such as 'addiction' and 'instinct'.