SI AND H EXPERIMENTATION, 11 SEPTEMBER 1951 (OPERATIONS ROOM AND ROOM 3)

• Document Type: SPECIALCOLLECTION
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): 00428091
• Release Decision: RIPPUB
• Original Classification: U
• Document Page Count: 2
• Document Creation Date: January 23, 2025
• Document Release Date: August 23, 2000
• Publication Date: September 11, 1951

To: Files �
Subject: SI. and H Experimentation, 11 September 1951
(Operations Room and Room�3)
-. On Tuesday,..11'September 19514 UIILIIIIIIRE11r and
the writer-cOndtcted SI and H' experiments etween : and :30.PM -
4,11th ti
subjects..
� Since
vaned experimen
ment o ep
Room 3 while the
discussions with
quest
simple
aft
e con
a on ereas
er 9 wi
iter conduc
a ion o e wor w
was,previous
�nt
.lit up, it was decided to re
to show the other 'girisl several
ues. This was accomplished and there-
t the etations Room and inducted
axing technique was given
to and all three girls attained
a: go.. saeo re axa on an rem ed ma thoroughly relaxed
state for approximately ten minutes when they were awakened by the
� 12345 method.
�
ante disc
It was decided then, after a discussion, to repeat the test
using a somewhat faster technique and t complete:
relaxation was reached, particularly in case, who
relaxed to such a point she fell over sideways on sofa and
remained throughout the test in a recumbent position. Thereafter
all the girls were awakened using the standard 12345 method in
each case. The girls had full memory of the writer's voice, but
each agreed that with the continuance of the test, they had ob-
tained a deeper relaxation than they had at any time previously.
point,
returne era ions ed he
s, � general discussion was held awing
post H tests with �enefit of
the other girls.
on
APPROVED FOR RELEASE
relaxation test was run
d again the results were
successful and also again ent into a reciunbe
tion and remained througoiWthetest. During this test,
tried the hand-arm stiffening test with whic
generally successful.
After general discussions again, the tests Were concluded
for the evening since the Operations Room with eight people present,
was quite warm and somewhat stuffy.
For a description of the work that
did with
report.