Doc 0000184406

The image displays a graphic representing a vault door with complex mechanisms, set against a dark background. The text overlaying the graphic identifies "THE BLACK VAULT" as the source of a declassified document from the MKULTRA/Mind Control Collection. The text further specifies that over 20,000 pages declassified by the CIA are available for free download at a provided URL. There are no photographs of people, locations, equipment, or subjects, nor are there any handwritten annotations, signatures, official stamps, forms, tables, or diagrams visible. The graphic and text together serve as an introductory or disclaimer page for accessing sensitive government documents. .• .(· --------- ---. c .. .. .. . ~-.-~·' -... -.s·.w .. 0 . ' · ! ash.Lrv;tcn ~: c; ~ :'. l~ • .. :~ +" }" : riclosc.;d for F'Ur file!l is ~·Jy~ orir;irnl copy c.•f Q,cr la.t.e::;t :;t.3.LU3 t:•:'p•)l't r;n t!1e U~e of t..hc ·:i<~'J-tono &:\lay inst"Ml"111nt a:.: nn intor!·o• .~ !l. ti·:)!"l device. Also ~·nclo:ocd for y:>ur usa 1.::; n <iuplicatc rrilich you requested ~n .ruur le twr to us rlated Fobruary 20, 195J. \ '''\ i.· 1- • ~ . ·' l. ' c '· · r.clo::ure::; cc - .• Hosearch '.. m an Interrogation revice and rrocerluro May 1) 19$3 1 .. I ful interrog·~tion device froflt the offects of sidc-tono delay, togttU1er '-'ith an appropriate procedure for its use <ii th a r-1ini.m'Wil nur.tber of attachments. The secondary aim, ooing developed in t'1is l:tboratory, is to obtain mor·c en.:-;:Uy i..nterprnted ooly.~raph r(~cord~ bv tt~u of ::ide-tone del!.\y in con- !) deli v~rod to this lab<r atory- a ll'lore refined side-tone delay (::TD) instrument on ~t.:U.ch 5, 195). The conat.ru.ction of tht~ now instru"'1Cnt \':an reyuostod by the inve:>tigatorg . ith the oolief that its rqf1nements '~nuld olimin:tte .soml'l or tl~) dlfficulUos encountered in proviou::~ instru!'llents. 1ho l"3!inoments oon~L>tod of a varL:ible t.:.l:Je snacd 'i: rt>ccTrii.nf: unit ~·a~ cnr1pletoly di;,-n,:mt.leci 1.nd V1c·n ru1.)Uilt •ith n vari.:1ble t 1DC spt>cd. .nr.o tho :;bn::brrJ lh~necord G.ynchr<.."t1oun mol or wa:1 l:.cljustod so as to r!rive a disc at Tariabla dl::;tances fromthe axis. Tha ntn.fly constructed drive W;J.a free from wow and had a 1-lO speed range which !!Want t.he t.a.pe speed .~. •l;l.S 3" to 30" per r.econd. 'l'n ts provided lU1 eat~ily ad,1ustable V'U'iable in the ., ' ... .'!''· I ·' o:ira-tunc del"\y fro-, O.Ohl6 to o.hl6 ~econds. Til-n !Jt. . ut(brr:l Ha.gnocord endl.u~PJ- loop tape &":vice was utilized in pl:ico of the atand~l.l'd \;,\,·o-rcol device. In February, 1953 the 1nvat!tt~ators decided ttut possibly batt-er re- .. -'"{'· mllts coulr he obtainerl if tho ::;ubject was not. ra':J_nired to war eaiTlhones. ' ; .... .··.::.1 nmt so that :tt '~<-lOuld bn unneco~;sary for the r.u!J,l ·~ct. to 'ear e.1rph::1ne ft• Ti~ eliJ'!tination of tho subject's earphone~ was accc!'llplished by addln.4; two throat . ~· . \ . } Th1~ r~ubjcct's microphone is connected to tJ1e standard Ha{;n;;;cord amplifier, and tho a'Tiplifior•s -nflter switch is the :)TD off-:md-on :n~itch. Tho Magnecord's nonitorln~ J1ck is tt1e This document is a typed letter dated May 1, 1953, from Washington D.C. Handwritten annotations at the top right of the page appear to be a code or reference number. The letter mentions enclosed status reports on the use of a "side-tone delay instrument as an interrogation device," and a duplicate copy requested by the recipient. There are also what appear to be official marks, possibly indicating enclosures or distribution lists, at the bottom left and center of the page, along with a handwritten "B" next to an outline of a box. There is no photographic or visual evidence of people, locations, equipment, experimental procedures, or facilities. r.u!J,l ·~ct. to 'ear e.1rph::1ne ft• Ti~ eliJ'!tination of tho subject's earphone~ was accc!'llplished by addln.4; two throat . ~· . \ . } Th1~ r~ubjcct's microphone is connected to tJ1e standard Ha{;n;;;cord amplifier, and tho a'Tiplifior•s -nflter switch is the :)TD off-:md-on :n~itch. Tho Magnecord's nonitorln~ J1ck is tt1e o:ltlet from tt1is i.nntrul"lent and it is connected to the ~uxillary ar.,plif'ier by a. sotmd cable. lha nul>.lect':J :J·1eoch r-oo:; t.hro'.li~h this to ·'i.tuiliary arrrnlifior thr.3 t·"'o e:~ternal r,pe .'tkerA. The s~>cond thro \t microphone ,. r· , .. . ~ ~ tho tHo external speakers, tho subject Hill bo less likely to su '\il~Ot that. his voice is being delayed because both voices 'Will IN Unci allke, even though the }. int.orrog:lt.or'r; voice ie not delo;yed. >! :. '('·-- .. ~- .• ,,: ·'' tuo ~;n:tornnl epeakers HCrt.l rmch '1101'~ e.f!'cct.lve in inducing V~e :TT' effect l than one l!lpoaker. i-Ji th onl7 or.e spen.ker the subj~ct can tum his hoad and l tocus his •1ttantion ~Ui\.1 fran the 9 onrce of his delay-en :3peech. Tho best •• ,.,l ! ·.d •'/ tho ~ubje:ct. TI1e variabla-dola:; 1nstrU!Ttent delivered in thrch proved to be the .. ~ .. .. ::: J'!IOSt durable :10 far· tested because of its im;:n-o~ed cle:oJign und better con- \ ·. . . , ~ ~ •' ' this inprovcd inst.ru71~nt Hould proviC.a a oottar o·,.:till<t.tion of t.he variable ·' or ~elgy becaur:E:~ the:·.e r~=tf:tnent?nts. It wn~ 'b~lin'rod that more ai..l.'bject~ . ,. ~~,..i· ~:_~-~ l:ould t'l\?. affe<:ted by t.h£1 ~icn-t.ono ~.~l~y prwno"'tenon \ltth thtn btproved in- :.-t.!. '-:'], ··~l' · ho 11ere not affnctad· by .1 prctdo\;~;;JMlned 0.20 :>t:Condn del''·Y ·aero nsulil.ly not •.· or tlecreqsed. The:;·-· r,1sul.ts ng:un ln<Jlc:l.ted to the i.m"u!Jt.ig.1.tors that po~sibly the rubject' s aMOU!lt or educa t.ion, intelli[~ence or :soci1~ conschunness was . ~-~~.-.."''"~!- !? . •. ~ rel'lt.od to +.. h e a"\nunt of cifHcnlty he e :(ryf~-rlenced in :;peaking ~.:h!!n the ..- ::'I'D instrum~nt '·HR •Jf!ernti.ng • . ,;. 1.1 .. ., .. :0 ,. . . ·' ' ".!.' However, i.t wns diacovored that MM1 guilty ~ubject,, aonfes:1ed even though thair npe6ch wa~ un~ffected by the ~TD device. I~ • ' proccrlurea to be uMd wHh thA ·:·m instru~t ~o th:lt confes~ions ~ould be more ca~i.ly <a.'1d readily oht:tined. 'f11a rc~ult~ then obt:dned t<ith the vari:tble- \- . ··- . .-~ . I I . It was aonfes:1ed even though thair npe6ch wa~ un~ffected by the ~TD device. I~ • ' proccrlurea to be uMd wHh thA ·:·m instru~t ~o th:lt confes~ions ~ould be more ca~i.ly <a.'1d readily oht:tined. 'f11a rc~ult~ then obt:dned t<ith the vari:tble- \- . ··- . .-~ . I I . It was found th;tt. approxirna. tely the s~,;; parcentage or gail ty subjocts I ' . - . -.. r: contract. 'co r-fa;y 11 1953 thL~~ percentage •">f cunfc>:Jsion:> fro:'! tnt.err'Jf,ttted 1 . . ·.' ~· .,,·. t\trin~ .'1llhjects, lrpro:drntely u2 nt·r cent of the interrogatnd aubjcctg rlirl confens Thus when one reviews the pa3t yaar in ita entirely, it appe:trs that thF3 ~ide-ton'3 deLq di.rl not. increa~e the nf!rcontH-ge of confo:J::;ions. 'hon a confe~nion t;aq ?::lined by the um:: of tllQ 'Tll iJlgtru"''<.mt, it did not :-nJ.tcrl1.lly ..· -! ·' ,! . :.: • > l~, great ~~tajority of tJ1ostt 'Kho did confens wr.;ul.C. have con!e::~sed witll~;ut the U!M l . \ .. .. -~ .,t-e rrovon to bt.~ true in two cases when, et.fter fullt confessing, th~ nubjcc.-ta '\ r,t:1ted tln t. they did not confc~a e.nrller oocause of the Dl'D anrt that t.!~C7 .. <:1.mfus<Hl :·uti be~ilt:onilj oy the :-TD effect that th'=Y' r;ere no lof1Ger Ct ncorned ,I .J.r-·r ' I. '• perS'J.<l!3iiTCl1E:<'!!'l i:" loci;. .':n\1 ttJ~~n:! i:; llttlo likelihood d' rJ\)tilinir.p: ol C•.:>nfosnion. ·. . -.·~ lt iotha opinion of' the invc:3t.iga.t..ors that the fut.urc holds very little i. L'ha ··.· ·'. tem, ::md narrative tyna .'Ul~wers) uere l!:merimen;,ed ·.rith during pol)"t{raph tests >. ·..- . ', ; • • v:h~n the :;ro instrument '''ns also being operated • .. ' .... .I.-.'• J .. ..· -/' · ·' • so that they lfsre 1'10~ e difficult to interpret. Tn fact, on t~ occa5ions _,._. ,..-. _, •I.:;. For thea-:; reaaono tho inve.stigat.l!I's bcliovc tha.t tho S'l'U in~trU:.!OOnt. ··.·, . ~hould not be uued 1n conjunction with tho pol;rp.;r:!;>h test. ' . . '•t ' ~!. J ,,. .. ,, •,. ,.J ,, .•.. : ''!. '/i> ' ... !'j .... ..t. ... The document is a typed report, likely from the 1950s, with a title "STATUS REPORT" and a section heading "Research on an Interrogation Device and Procedure." The text describes the development of a "side-tone delay (STD) instrument" for use with polygraph records. There's a handwritten annotation that appears to be a capital "B" in the left margin. No photographs, diagrams, stamps, forms, or redactions are visible on this page. The document appears to be a description of technological development rather than a record of experimental procedures or subjects. This document is a typewritten page from a declassified CIA report. The text is black ink on white paper, with a few faint smudges and what appear to be the remnants of a light crease running vertically down the left side. There is a faint, round red stamp at the bottom center of the page, partially obscured, with what appears to be "2" followed by a circled "P" or similar character. The text explains an experimental setup involving voice delay equipment for interrogations, detailing the use of microphones, amplifiers, and speakers. There is no handwritten annotation, photographs, forms, diagrams, tables, or redactions visible on this page. The document is a single page of typewritten text with several handwritten annotations. There are no photographs, diagrams, forms, or official stamps visible. The text discusses an experiment involving a "variable-delay instrument" and its potential effects on subjects. One handwritten annotation, the letter "B" in cursive, is located in the top left corner of the page. There are no visible redactions or obscured content on this page. The document appears to be a typewritten page with some handwritten annotations. There are no photographs, diagrams, stamps, forms, or tables visible. However, there is a handwritten letter "B" in the lower left portion of the page, suggesting some form of internal marking or notation. There are no visible redactions or obscured content. The overall visual impression is that of a standard, unmarked document page. The page is a scanned document with heavily pixelated, low-contrast text. No photographs, handwritten annotations, signatures, stamps, forms, diagrams, schematics, organizational charts, or tables are visible. There are no apparent redactions or obscured content. The visual presentation is solely that of a degraded typed document. The page contains typewritten text on plain white paper, presented in a single column format. There are no photographs, handwritten annotations, official stamps, forms, diagrams, or tables visible. There are no apparent redactions or obscured content. The document discusses the ineffectiveness of the "TD" instrument in producing desired results and its impact on polygraph records, suggesting it should not be used in conjunction with polygraph tests. There is no visual evidence of experimental procedures, equipment, or facilities.