A wider model, a long move away from large institutions and a changed idea of recovery reshaped mental health care across the twentieth century's second half.
A model that widened the picture
By the middle decades of the twentieth century, a further shift was under way in how mental health difficulties were understood. Rather than looking for a single cause, whether purely biological or purely psychological, a broader model took hold that considered biological, psychological and social factors together, and the ways they interact in any one person's life. A difficulty might have a biological component, a psychological pattern that keeps it going, and a social context, such as housing, relationships or work, that makes it easier or harder to manage. This way of thinking did not replace earlier schools so much as widen the frame around them, treating a person's whole situation, not only a symptom or a diagnosis, as relevant to understanding what was happening and what might help.
From large institutions to community teams
Across the decades after the Second World War, confidence in the large asylum as the right setting for care declined sharply. Institutions that had grown overcrowded and custodial came under sustained criticism, and new treatments and ways of working made it more realistic to support people outside institutional walls. Over time, large asylums were downsized, closed or repurposed, and care shifted towards community-based teams, outpatient services and shorter periods of inpatient care used more sparingly and for a narrower range of situations. This move, generally called deinstitutionalisation, was not without difficulty; it depended on community services being genuinely available and adequately resourced wherever it happened, and it did not always work as intended. But it represented a lasting change in expectation: that most people would live, and be supported, within their own communities rather than apart from them.
Recovery as an idea, not only an outcome
Later in the same broad period, a further idea gained ground, usually called the recovery movement. It shifted attention away from the elimination of every symptom as the only measure of success, and towards a person building a life they find meaningful and worthwhile, which may include managing an ongoing difficulty rather than being free of it entirely. This way of thinking gave much greater weight to a person's own goals, values and expertise about their own life, alongside clinical knowledge, and treated the perspective of people with lived experience of mental health difficulty as a legitimate and necessary part of how care and services should be designed, not simply as something to be treated. Its influence is still visible today in an emphasis on collaboration between clinicians and the people they support, rather than a purely one-directional relationship.
Taken together, the biopsychosocial model, deinstitutionalisation and the recovery movement mark a broad shift, across the second half of the twentieth century, from managing people towards working alongside them.