Although some people with mental illness were treated as early as the 15th century in institutions like the Hospital of Saint Mary of Bethlehem in London (whose name was often shortened to Bedlam, hence the modern word "bedlam"), the practice of institutionalizing people with mental disorders did not become common until the 17th century.
During the 17th, 18th, and even into the 19th centuries, treatment of patients with mental illness was quite crude and often simply barbarous. This state of affairs started to change as medical practitioners began to see mental illness as a medical problem. During the late 18th and early 19th centuries, hospitals began concentrating on keeping patients clean and comfortable, building their self-respect, and treating them with friendliness and encouragement. This method of treating mental illness resulted in the establishment of specially designed institutions for the care of mental patients.
Beginning in the 1940s, mental health institutions sought more effective therapeutic services for their patients, including more social activities and innovative treatment programs. Treatment shifted from a sole reliance on state mental hospitals to provision of more services in general hospitals and community mental health centers.
The object was to shorten periods of institutionalization and to decrease the stigma and dislocation associated with treatment in mental hospitals. However, these changes also sharply increased personnel needs. One strategy for dealing with this has been to train more professionals: psychiatrists, psychologists, social workers, nurses, and others. Another strategy has focused on training more nonprofessionals: aides, attendants, orderlies, and others.
The drive to develop new therapies and the trend toward deinstitutionalizing patients have led to the creation of a new category of mental health worker with a training level between that of the professional and the nonprofessional. Workers at this level are usually referred to as paraprofessionals or technicians, and in the mental health field they are known as psychiatric technicians or mental health technicians.
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