Extracted from

DISSOCIATION AND MEMORY: A TWO-HUNDRED YEAR PERSPECTIVE

by Adam Crabtree

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A COMPREHENSIVE APPROACH TO DISSOCIATION

In the late 1960's a new wrinkle on dissociation and memory was introduced. It was the discovery of "state-dependent" effects in human beings. The notion, briefly stated, is that when people learn information, undergo an experience, or develop a skill in a specific state of consciousness, they can recall that information, reclaim that experience, or exercise that skill most easily when the original state of consciousness is re-establish. The earliest experiments in this area investigated the effects of certain drugs on memory in animals (Overton 1964, 1968). These were followed by investigations of the effects of alcohol or barbiturate intoxication on human memory (e.g., Goodwin et al. 1969 and Eich 1977). The results proved the old saw that if a person when sober could not remember where he put his keys when drunk, the best way to get the memory back was to get drunk again.

Roland Fischer, a pioneer in this field of investigation (Fischer et al., 1970, Fischer and Landon 1972, Fischer 1976, 1977), attempted to place our understanding of state-bound memory in a framework that takes into account both context and a spectrum of psycho-physical arousal, ranging from hypo- to hyper-arousal (Fischer 1971). He speculated that the more discontinuous the states of arousal, the less ability to retrieve a memory in one state of an event in another. In 1971 Fischer stated: "The implications of this amnesia between disparate levels of arousal for criminology, jurisprudence and psychotherapy have not yet been realized" (Fischer 1971, p. 33); that statement seems to be quite valid yet today.

The implications of the notion of state-dependent learning and state-dependent memory are vast. It can be said that for all people, the so-called normal and the disordered, memories are attached to specific states of consciousness and gaining access to memories depends on returning to the proper state of consciousness.

Memory as state-dependent serves as an experimental model for verifying the understanding of dissociation and memory of Janet. It also confirms the notion that "amnesia" or "forgetting" are misleading concepts to use in attempting to describe dissociative experience, and points instead to dissociation as a partitioned assimilation of information and experiences.

So this is what is comes down to: dissociation, normal and disordered, is the partitioned assimilation of information and experiences. And memory is the retrieval of information and experiences by returning to the compartment into which they were assimilated. There is no "forgetting" followed by "remembering." Instead we move from state of consciousness to state of consciousness and retrieve information or experiential data with greater or less efficiency, depending on the "disparity" of the present state from that in which the information was obtained or the experience was undergone. If the disparity is too great, retrieval will fail.

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