In North America, early years of sport psychology included isolated studies of motor behavior, social facilitation, and habit formation. During the 1890s, E. W. Scripture conducted a range of behavioral experiments, including measuring the reaction time of runners, thought time in school children, and the accuracy of an orchestra conductor's baton. Despite Scripture's previous experiments, the first recognized sports psychology study was carried out by an American psychologist Norman Triplett, in 1898. The work of Norman Triplett demonstrated that bicyclists were more likely to cycle faster with a pacemaker or a competitor, which has been foundational in the literature of social psychology and social facilitation. He wrote about his findings in what was regarded as the first scientific paper on sports psychology, titled “The Dynamogenic Factors in Pacemaking and Competition”, which was published in 1898, in the American Journal of Psychology. Research by ornithologists Lashley and Watson on the learning curve for novice archers provided a robust template for future habit formation research, as they argued that humans would have higher levels of motivation to achieve in a task like archery compared to a mundane task. Researchers Albert Johanson and Joseph Holmes tested baseball player Babe Ruth in 1921, as reported by sportswriter Hugh S. Fullerton. Ruth's swing speed, his breathing right before hitting a baseball, his coordination and rapidity of wrist movement, and his reaction time were all measured, with the researchers concluding that Ruth's talent could be attributed in part to motor skills and reflexes that were well above those of the average person.
Hypnosis is not a psychotherapeutic treatment or a form of psychotherapy, but rather a tool or procedure that helps facilitate various types of therapies and medical or psychological treatments. Only trained health care providers certified in clinical hypnosis can decide, with their patient, if hypnosis should be used along with other treatments. As with psychotherapy, the length of hypnosis treatment varies, depending on the complexity of the problem.