Tim Brunson DCH

Welcome to The International Hypnosis Research Institute Web site. Our intention is to support and promote the further worldwide integration of comprehensive evidence-based research and clinical hypnotherapy with mainstream mental health, medicine, and coaching. We do so by disseminating, supporting, and conducting research, providing professional level education, advocating increased level of practitioner competency, and supporting the viability and success of clinical practitioners. Although currently over 80% of our membership is comprised of mental health practitioners, we fully recognize the role, support, involvement, and needs of those in the medical and coaching fields. This site is not intended as a source of medical or psychological advice. Tim Brunson, PhD

The ups and downs of memory.

Ever since the classic work of Ebbinghaus (1885/1964), the default view in scientific psychology has been that memory declines over time. Less well-known clinical and laboratory traditions suggest, however, that memory can also increase over time. Ballard (1913) demonstrated that, actually, memory simultaneously increases and decreases over time and thus has not 1 but 2 tendencies. When more than 1 recall test is administered, a later test invariably shows loss of some items remembered earlier (oblivescence), but later tests also invariably show that previously unremembered items are recovered in later tests (reminiscence). Depending on a number of factors (e.g., the stimulus used), the overall balance between reminiscence and oblivescence may be positive (hypermnesia) or negative (amnesia). Modern multitrial recall studies have extensively documented hypermnesic memory in single laboratory sessions and, also, although less frequently, over periods of days, weeks, and even months. With hypermnesic memory now established, hypnosis has been shown not to add anything to regular hypermnesia. This article presents an integration of the scattered literatures, which now, after a century of experimental and clinical effort, coheres into a solid empirical picture, with numerous implications (e.g., for the recovered memory controversy, eyewitness testimony, repression, and subliminal perception).

Am Psychol. 2010 Oct;65(7):623-33. Erdelyi MH. Department of Psychology, Brooklyn College, Brooklyn, NY 11210-2889, USA. iyledre@comcast.net

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