... and not the result of the environment. Through 1930-40's stimulant drugs were first used to successfully treat many behavior problems due in part by Still's hypothesis. In 1960, Stella Chess further boosted research in the field by writing about the "hyperactive child syndrome." She took Still's hypothesis further stating that the resulting behavior problems stem from a biological cause, although it ... sense of fatigue, an increase in motor activity and mental alertness, mild euphoria, and brighter spirits. In the PNS, the actions of Ritalin are minimal at therapeutic doses (Clinical P...

• Word Count: 2456
• Approx Pages: 10
• Has Bibliography
• Grade Level: Undergraduate