Identity
psychology / sociology
Psychologists most commonly use the term "identity" to describe personal identity, or the idiosyncratic things that make a person unique. Sociologists, however, often use the term to describe social identity, or the collection of group memberships that define the individual. However, these uses are not proprietary, and each discipline may use either concept and each discipline may combine both concepts when considering a person's identity. It is what it is. Social psychologists may speak of "psycho-social identity". Neuroscientists draw upon these fields to study the neurobiological basis of personal and social identity.