Eeg alpha training, hypnotic -susceptibility, and baseline techniques

3 alpha feedback sessions of 40 minutes were administered aRer a similar baseline period without feedback to 12 Ss high in hypnotic susceptibility and 12 Ss low in hypnotic susceptibility. Hypnotic susceptibility was not a significant dimension in alpha feedback training and previously reported relationships between alpha density and hypnotic susceptibility were not generally found. Evidence did support the efficacy of the current baseline procedure over others more commonly used. The possibility under certain conditions of there being a relationship between hypnotic susceptibility and alpha density and theoretical considerations in recording baseline are discussed.