Leonard Berg
Leonard Berg (1927 – January 15, 2007) was a neurologist at Washington University in St. Louis and a specialist in dementia and Alzheimer's disease. He was instrumental in the development of the Clinical Dementia Rating scale, a tool commonly used in research of these diseases.

Born in St. Louis, Missouri, Berg studied at Washington University, earning both his undergraduate and medical degrees there. He became an assistant professor of clinical neurology there in 1956, and also maintained a private practice from 1972 to 1989. He became a professor of neurology and from 1985 to 1998 directed Washington's Alzheimer's Disease Research Center. In 1985, he was also named president of the American Board of Psychiatry and Neurology.

During the 1980s, Berg helped develop a series of tests to assess a patient's level of dementia by determining their abilities in language, memory, and everyday tasks. A numerical scale was established, with a 0 corresponding to no symptoms and a 3 representing severe symptoms. The tool developed into the Clinical Dementia Rating Scale, and has gained wide acceptance in Alzheimer's disease research.
Q777403
Washington University in St. Louis
ORG
Q83030
dementia
Concept
Q11081
Alzheimer's disease
Concept
Q5133756
Clinical Dementia Rating
UNK
Q38022
St. Louis
LOC
Q1581
Missouri
LOC
Q4743221
American Board of Psychiatry and Neurology
ORG
Q6525118
Leonard Berg
PER
2007-01-15T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
January 15, 2007
DATE
1956-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1956
DATE
1972-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1972
DATE
1989-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1989
DATE
1985-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1985
DATE
1998-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1998
DATE
1985-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1985
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1980
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1927
NUMBER
0^^http://www.w3.org/2001/XMLSchema#decimal
0
NUMBER
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3
NUMBER
educated at
date of death
symptoms and signs
located in the administrative territorial entity