Cultic Studies Journal, Vol. 13, No. 1, 1996, page 32
number of cases were few, in the long run similar rulings may require a large expenditure of
judicial and expert resources to little advantage. The American Medical Association Council
on Scientific Affairs (AMA) recently reaffirmed its 1985 statement (AMA, 1994) calling for a
per se exclusion of testimony influenced by hypnosis. Based on considerable scientific
evidence and experience with forensic hypnosis, the AMA view should not be dismissed
lightly.
Finally, the court noted that in previous cases hypnosis was used to refresh recollection,
while in the case of Borawick v. Shay (1995), hypnosis was used therapeutically. However,
in its decision, the court was “not willing to assume that the risks of suggestibility,
confabulation, and memory hardening are significantly reduced when the hypnosis that
triggers the testimony is used for therapeutic purposes.” This segment of the court‟s
decision will be supported in this paper. When hypnotically influenced recall emanates from
a clinical setting, it may often pose as great or even greater risks to the fact-finding process
than if it originates during an investigation.
In summary, the court‟s decision excluded Ms. Borawick‟s testimony on the formal grounds
of the unreliability of hypnotically influenced testimony and the somewhat more informal
rationale of the “fanciful” nature of her accusations about devil-worshiping Masons.
Beginning with hypnosis, these two factors will be discussed.
Notes on the History of Forensic Hypnosis
Joan Borawick‟s memories of childhood abuse originally emerged during hypnosis. The
District and Circuit Courts disallowed Ms. Borawick‟s testimony because her recall had been
hypnotically influenced. The hypermnesia techniques used by recovered memory therapists
involve either formal hypnosis or what Perry (1995) has called hidden hypnosis: guided
imagery and “regression work.” So the effects of hypnosis on memory play a central role in
this matter.
Problems with hypnosis and the testimony resulting from it formed the basis for judicial
decisions in France as early as the 1850s. By the 1880s, the problems of confabulation,
simulation, and the possibility of lay hypnotists harming their subjects were debated
regularly in French courts (Laurence &Perry, 1988). Around the same time, a number of
psychiatrists became aware of the possible pathogenic consequences of memories from
early traumatic events recounted during hypnosis (Ellenberger, 1970). For example, Janet
(1889, 1894) worked with hypnosis as a means of tapping into such memories and altering
the idée fixe. At about the same time, Freud was producing abreactions during hypnosis
(Freud &Breuer, 1895). After hypnosis, the patients of both psychiatrists obtained relief
from their symptoms. It should be noted that Janet‟s work depended on the ability to alter
memory with hypnosis, whereas Freud‟s work led to a recognition that the early childhood
events his patients recounted in hypnosis were partially or entirely fantasy. Thus, both Janet
and Freud knew that hypnotic memories were both mutable and historically inaccurate.
Interestingly, Freud‟s realization of the inaccuracy of hypnotic recall led to his conception of
the Oedipal fantasy (Ellenberger, 1970).
Despite the experience of European psychiatry around the turn of the 20th century,
investigations about whether hypnotic age regression involved a true reliving of earlier
events continued through the 1950s. Studies of age-regressed adults found physiological
and cognitive patterns believed possible only in young children or infants (e.g., Gidro-Frank
&Bowersbuch, 1948 Reiff &Scheerer, 1959 True, 1949). These results were considered
seriously until necessary methodological advances and careful controls showed such findings
artifactual (cf. O‟Connell, Shor, &Orne, 1970 Orne, 1951).3 Age-regressed adults are
adults who act as if they were children. The fact that well-respected psychiatrists and
psychologists continued research on whether literal childhood responses could be
Cultic Studies Journal, Vol. 13, No. 1, 1996, page 33
temporarily reinstituted during hypnotic age regression illustrates the convincing nature of
memories recounted during hypnosis.
During the past 15 years, considerable research has been done on the effects of hypnosis
on memory. A number of such studies appeared in the 1980s and 1990s (e.g., Dywan &
Bowers, 1983 Spanos, Quigley, Gwynn, Glatt, &Perlini, 1991). Books, chapters, and review
articles appeared subsequently (e.g., Laurence &Perry, 1988 McConkey &Sheehan, 1995
Orne, Whitehouse, Dinges, &Carota Orne, 1988 Scheflin &Shapiro, 1989). This research
found that hypnosis causes heightened production of information. Much of the new material
gained in hypnosis, however, is incorrect. Hypnosis also produces an overall increase in
confidence about both correct and incorrect memories (cf. Sheehan, 1988). Subjects are
ordinarily more confident about their memory for correct rather than incorrect information
(for a recent review, see Sporer, Penrod, Read, &Cutler, 1995).
Because the hypnotic subject experiences increased confidence in both accurate and
inaccurate memories, the usual correlation between certainty and accuracy is abrogated,
making cross-examination more difficult (Sheehan, 1988). Further, the frequent inclusion of
confabulated, vivid detail in the new material makes hypnotically influenced memories more
credible (Dywan, 1995). Fantasies entirely unrelated to historical events may also be
suggested during hypnosis and remembered as veridical (Laurence, Nadon, Nogrady, &
Perry, 1986 Laurence &Perry, 1983). Finally, subjects are often unable to discriminate
accurately what they remembered of the original events before hypnosis, what material
they learned subsequently from other sources, and what additional material they
remembered during hypnosis (Orne, Whitehouse, Carota Orne, &Dinges, 1996).4
To some degree, these effects are independent of individual differences in response to
hypnosis. Hypnotizability, as measured by response to standardized inductions and
suggestions, is a stable personality trait. The test-retest reliability of the Stanford Scale of
Hypnotic Susceptibility, Form A, is approximately .70 when individuals, originally measured
when undergraduates at Stanford University, were measured again between 10 and 25
years later (Morgan, Johnson, &Hilgard, 1974 Piccione, Hilgard, &Zimbardo, 1989). These
results compare favorably with the test-retest reliability of other personality dimensions,
and are exceeded only by the full-scale stability of multitask measures of intelligence.
However, even those relatively insusceptible to hypnosis show increased productivity, error,
and confidence when hypnosis is used to influence memory (Carota Orne, Whitehouse,
Dinges, &Orne, 1996). The amount of change, however, is usually somewhat greater for
highly hypnotizable subjects than less hypnotizable subjects.
Examples of Modern Forensic Cases Leading to the Per Se Exclusion of
Hypnotically Influenced Testimony
The problems related to hypnosis are not limited to the laboratory. In numerous modern
cases, the problems attendant to hypnotically influenced recall have endangered the cause
of justice in both the criminal and civil arenas. As a result, many state courts have excluded
such testimony on a per se basis, either in its entirety or with specific exceptions. The
following brief review of three early cases may illustrate the reasons underlying the per se
exclusion rule.
People v. Kempinski (1980). An eyewitness identification of Michael Kempinski was made
by a man present at a stabbing death. Prior to hypnosis, the witness was unable to identify
either of the two assailants because he was sitting in a truck approximately 250 feet away,
it was night, and the lighting was poor. During hypnosis, the hypnotist told the witness he
could remember what he saw as if he were watching a videotape of the event on a mental
screen. He could increase or decrease its speed, reverse, stop, or zoom in on any part of his
videotape. After hypnosis, the witness indicated he recognized the assailant as a person he
knew, and identified Michael Kempinski from a photograph in a book of mug shots.
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