The psychosocial approach looks at individuals in the context of the combined influence that psychological factors and the surrounding social environment have on their physical and mental wellness and their ability to function. This approach is used in a broad range of helping professions in health and social care settings as well as by medical and social science researchers. People may not be fully aware of the relationship between their mental and emotional wellbeing and the environment. It was first commonly used by psychologist Erik Erikson in his description of the stages of psychosocial development. Mary Richmond, pioneer of American social work regarded there to be a linear relationship between cause and effect in a diagnostic process. In 1941 Gordon Hamilton renamed the 1917 concept of "social diagnosis" as "psychosocial study". The psychosocial study was further developed by Hollis in 1964 with an emphasis in the treatment model. It is contrasted with diverse social psychology, which attempts to explain social patterns within the individual. Problems that occur in one's psychosocial functioning can be referred to as "psychosocial dysfunction" or "psychosocial morbidity." This refers to the lack of development or diverse atrophy of the psychosocial self, often occurring alongside other dysfunctions that may be physical, emotional, or cognitive in nature.