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- From: dlb@fanny.wash.inmet.com (David Barton)
- Newsgroups: sci.skeptic
- Subject: Re: Suggestibility
- Message-ID: <DLB.92Dec21150051@fanny.wash.inmet.com>
- Date: 21 Dec 92 20:00:51 GMT
- References: <BzMHu7.EnD@cs.uiuc.edu>
- Sender: news@inmet.camb.inmet.com
- Organization: Intermetrics Inc., Washington Division, USA
- Lines: 50
- In-Reply-To: mcgrath@cs.uiuc.edu's message of 21 Dec 92 18:54:06 GMT
- Nntp-Posting-Host: fanny.wash
-
- In article <BzMHu7.EnD@cs.uiuc.edu> mcgrath@cs.uiuc.edu (Robert
- McGrath) writes:
-
- I was thinking of the studies by Orne and others that compared
- hypnotized subjects to subjects instructed to behave just as if
- they were hypnotized. There were differences in the behavior of
- these groups, indicating that hypnosis is not as simple as "let's
- pretend you are hypnotized."
-
- Indeed. I don't know about Orne, but Erickson has published several
- articles about the mutual behavior of hypnotized and simulating
- subjects. He cites the "both / and" logic of the hypnotized
- individual, which is difficult to simulate without a LOT of practice.
-
- Quite. A very similar result to hypnosis. Is this the same
- process? I don't know. I've certainly never heard of people
- remembering past lives or channeling 25th century Venusians due to
- normal interregation (absent coercion).
-
- HA!! You don't hang around New Age fairs enough!! ;-)
-
- Well, lawyers will say just about anything! The real question
- maybe is how many and what sources of suggestion are present in the
- "testimony". Whatever sources of pollution exist for "regular"
- testimony exist for hypnotic testimony, plus unknown biases due to
- whatever hypnosis is (role playing, or r.p. + other stuff) and
- biases induced by the otherwise irrelevant hypnotist.
-
- It may be a little more complex than this. The real problem is not so
- much the actual testimony, but "rehersal" (which included routine
- questioning by police and prosecutors). To what extent does this
- questioning bias later testimony by literally changing the memories of
- the witnesses? To what extent is there a desire to please in the
- witnesses by remembering what the police (or prosecutor) wants them
- to?
-
- There is also a fair amount of question in my mind concerning the
- extent to which protracted questioning is trance-inducing. Age
- regression is a common induction and deepening technique, as many
- hypnosis texts will show. Constant questioning about past events, and
- in particular the sensual aspects of those events (actual sights /
- sounds / feelings) can easily induce a trance (putting aside, for the
- moment, the state / no-state argument) that can have a great deal of
- influence on the witness.
-
- The line between "hypnotically induced" and "not-hypnotically-induced"
- memories may be fuzzy indeed.
-
- Dave Barton
- dlb@hudson.wash.inmet.com
-