To: ],'iles Subject: SI aiid H experimentation 7 August 1951 (Iioonis 20, 3, and 8, 6:00 PM to 9:00 Pi4). On Tuesday, 7 August 1951, Messrs and the writer- c ndiir-tpA-;Lx erl t I and It betwee2 nd 9:00 PM with, ai as subjects and/or ol;@servers. This session was opened by a briefing and a lengthy djscussion of the experiments involving "normal" activity and the relationship these experiments had to some operational problems. After which the following experiments were discusse2d: was sent into another room and as placed der deep tr,,ince and ' en po,-,LiILUnotic t t e was to go to room wftpre a code word upon the use or whic FYAIMMIIMMINW 2 d t once into nce and would then do at suga,ested. as @= -aw-akeiiejd- Om re is then wen Om "PTY I - en gav bri interview a cod- 40t 2 immediate d deep her instructions wlii rie oW. p o3itions were reversed an ,Ial.ed her test, p r successfully. This test is regarded as important in that it 2 demonstrates that a person having no ability or knowled,,e of ;I or ii t('chniques can assume con4"rol of and run an individual via a code word. lliis test should have operational vilue. e ei,iment consisted of placinf,, both nd under deep trance,2 then r-turnin em n a completely 1,1.,ZIate alth S.@" in deep trance.- After which, 'hotli an visited- ed the latter's oi?@l@c exam n office talk(-(I t 1 5 mi- t hen left. During entire te y-gmi-ned under deep trance yet so 0 X complo a y id not susnect in any way that bot ere under complete 51 controll 0 It sliould be noted that.in,both above tests, total amneoia was obtained..@ 'A third short experiment was'conducted testing whether the hearin @of a'subjec t,undei.'SI',,could'be'.made sharper.,' Do ed on ten cards wliicti were e'r etest ed 9 s a'cross-the room. In each case, 'both ere able to identify as m,icii hizh(,-r pt-rcentage 2 rds 1-y earinf, than could other persons ir t.hq roon sit-tinp,, closer to operator calling the cards. Test is sirrnificant but, of course would require exhatistive tests on many subjects before positive con- clusions could be reached. Remainder of period was devoted to discussions regarding future SI and H experimentations. 0 Cormnent: Both tests 1 and 2 regarded as highly successful and of high operational value.