Published in 1992. Derived from the Apathy Evaluation Scale (AES) designed by Robert Marin in 1990.
Named SAS or AS in the scientific literature.
Starkstein SE; Mayberg HS; Preziosi TJ; Andrezejewski P; Leiguarda R; Robinson RG
Starkstein SE, Mayberg HS, Preziosi TJ, Andrezejewski P, Leiguarda R, Robinson RG. Reliability, validity, and clinical correlates of apathy in Parkinson's disease. J Neuropsychiatry Clin Neurosci. 1992 Spring;4(2):134-9 (PubMed Abstract)