stanford hypnotic susceptibility scale.pdf

STANFORD HYPNOTIC SUSCEPTIBILITY SCALE,

FORM C

Andre M. Weitzenhoffer & Ernest R. Hilgard

Stanford University

Modified by John F. Kihlstrom

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SHSS:C 1

STANFORD HYPNOTIC SUSCEPTIBILITY SCALE,

FORM C

Andre M. Weitzenhoffer & Ernest R. Hilgard

Stanford University

Modified fby John F. Kihlstrom

Note on the Modifications

The various Stanford scales of hypnotic susceptibility have served the field of

hypnosis extremely well for more than 30 years. Nonetheless, over the years certain

modifications seemed desirable. Very quickly, for example, the original authors

sanctioned a group version of the Stanford Hypnotic Susceptibility Scale, Form A,

known as the Harvard Group Scale of Hypnotic Susceptibility, Form A (a Form B is also

in existence, roughly paralleling the Stanford Form B); later, Arlene H. Morgan and

Josephine R. Hilgard adapted the Stanford scales for clinical testing of adults and

children, and E.R. Hilgard proposed that the Stanford Hypnotic Susceptibility Scale,

Form C be tailored for special purposes, so that some of the screening purposes of the

Stanford Profile Scales of Hypnotic Susceptibility, Forms I and II, could be

accomplished without additional testing.

There are five principal modifications in the present version of SHSS:C. (1) The

wording of the Induction by Eye Closure (Item #0) has been altered slightly to reduce

unintended connotations of authoritarian control present in the original. (2) Age

Regression (Item #7) permits the subject to choose between two target ages within

each epoch. (3) Anosmia (Item #9) substitutes oil of peppermint for ammonia. (4)

Posthypnotic Amnesia (Item #12) is assessed in terms of a joint criterion considering

both initial amnesia and subsequent reversibility, and the instructions for the reversibility

test now ask subjects to report all items they remember; in addition, an optional

recognition test of amnesia has been included, following procedures developed by John

J. Allen at the University of Minnesota (the recognition test does not compromise the

standard amnesia test of SHSS:C). (5) Finally, a test of Posthypnotic Suggestion (Item

#13) modified from SHSS:A has been added to reflect the special interests of the

laboratory, although it does not enter into the scoring of the scale.

John F. Kihlstrom

SHSS:C 2

Checklist of Materials Needed for Administration of SHSS:C

• Two chairs for subject -- recliner and side chair.

• Desk and chair for experimenter.

• Tape recorder and tape for recording session (optional).

• Black (or other contrasting color) pin installed appropriately on wall.

• Pencil well prominently displayed on desk, containing least two pencils (for

posthypnotic suggestion).

• Consent form.

• Watch with second hand.

• Pad of unlined paper and soft lead pencil (for age regression).

• Bottle containing oil of peppermint, hidden from view (for anosmia item).

• Three boxes mounted on plastic, hidden from view (for negative visual

hallucination).

• "PRE" and "POST" forms for recognition testing of amnesia (optional).

Note: If a subject fails to respond to three consecutive

suggestions , the experimenter should terminate the scale with

Item #12 (Posthypnotic Amnesia), including Item #13

(Posthypnotic Suggestion).

Flowsheet for Establishing Rapport

UPON ENTERING ROOM, HANDLE "DO NOT DISTURB" SIGN

BUILD RAPPORT

How is the semester going?

What was hypnosis like for you last time, in the group session?

The earlier session gave you an opportunity to learn a little about what

hypnosis, and our procedures, are like. You probably got the idea that while

hypnosis is a little unusual, in some ways it's not so different from experiences that

you've had in the ordinary course of everyday living. Among other things, we're

interested in individual differences in hypnotic response, and how they might relate

to other aspects of the personality.

SHSS:C 3

That first session gave us some idea of how you respond to hypnosis. But

the conditions there weren't ideal for this purpose -- the chairs and lighting weren't

especially comfortable, and there were the distractions of other people. Moreover,

we find it sometimes takes people a little time to settle into being hypnotized. This

session is a kind of followup to the first one, and is intended to give us a better idea

of how you respond to various kinds of hypnotic suggestions.

The format of the session will be pretty similar to the last one. There will be

an induction of hypnosis, very much like what you tried last time, and then some

suggestions. Some of the suggestions will be similar to those you tried last time, so

there will be some things that are familiar to you; but other suggestions will be

different, so you won't be completely bored by it. Of course, as in any of our

experiments, nothing will be done that would embarrass you in any way, and we

won't be prying into your personal secrets.

The idea is just to pay attention to what is going on, and try to have the

experiences that are suggested to you. Don't push something that isn't working, but

don't hold back on something that seems to take. We're interested in whatever you

experience, and we'll have a chance to talk about the suggestions toward the end of

the experiment.

Do you have any other comments about your experience last time?

Do you have any questions about today's experiment?

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