http://exhibits.library.stonybrook.edu/mfp/files/original/94d22623f2bd3544a9e08f930fcab471.pdf e9cefc2ec2bf9a6b9be6d2a79bbec37c PDF Text Text April 17, 1964 Dr. Max Pollack Killsids Hospitsl Po 0s 30! 38 Glen Oaks, New York Dost Msx: is the history and present ststus of my attsmpts to discriminate bstwnsn schizophrenics sud depressivss, using the EEG frequsncy Tbs folluwing snslyssr dsts. Estly lsst winter. John Stern ptssentad a paper in St. Louis showing the diffsrsucs batwssn achisophrenic patients and s control group, in a cross torrslstion analysis of EEG signals. His study was wall dons sad it canfirnsd the findings of Kennttd. Partly as s lstk, we obtainsd s distrimin~ sts function snslysis for tbs lib pstisnts, using tho EEG bands of delta, theta, stc. The F ratio was 3.08. with a significant P at the .01 lowsl. Hhsn looking at the discriminate function cosfficients, the dsts bscsns quite pussling. Tbs msjor tantribution was wads by delta activity sud bets two. Howsvst, instesd of having an increased snount of bsts and lsss dslts in the sehisOphranits st every ans sxpacted. our dsts shownd that tbs schiIOphtcnit group had more delta sud lsss bets tfit thsu the deprsssives. that point. I called and asked that you send us the records of the pstisnts who wsrs st tbs two entrants of the distribution. At 42 Reviewing ths diagnoses, it beeswc obvious first that of the first 25 patients at the schisophtsuic and of the diserininsts functien analysis. 9 had been lsbslsd childhood schizophrenia, and 8 undifferentistsd schizophrsnis in our early elasaificstious. The asst age for ths 20 schizophrsnic pstients was 22.9. and the meta ass for the E0 dsptsssivss st the other and of the snslysis wss 43.5 years. Thus. tbs diffsrentistion was not bstwtsu sthitophrsuis sud its dtpretsion, but childhood schiIOphrsnis sad deprsstivs disordsrs. Nsvsrthsloss, this was not s sufficient explanation so I asked Dr. Itil to rswisw the_rstords with as. we snalytad such record scaording to the form ontlotad with this lsttst. The records were placed in alphabeticsl order by my sscretaty, and ws disrsgsrdsd the nets sud sgs of ths subjact. The records wars tsviswsd. sspstislly the tasting psriad, the psgss analysed by the frsqusncy analyssr, syn—opening sud sys~closurs. and hypervsntilstion. When this wss done. the dsts wss summaritsd according to tha rstssrch diagnosis, thst is, dsptsnsivs disorder, childhood schisophtonis, sud schizophrenia. �Dr. Ha: Pollack 4-17—6‘ Page Two Thsre were 12 doprcsslvos. 9 ohlldhood schisophrenlcs, and 21 achlaophranlca among the records which you sent‘ne. Following this analysis, chloh I will summarize lo a moment, wo further sub— divided tho achiaoyhraolc patients into those who wore 25 years and younger, and than: 26 and oldar. Thus, on havo.£oor groups. Beta dominant records more soon in the dsprasslve patients and the oldar aohlaophrenlco only. whlla there were no differences in alpha dominance in the records. there was a pradonlnsnt number of theta dominant rocords in tho childhood oohiaophtanio group, and the gunman: schizophrenics. la the tamalnlng'chatscterlstlcs, the four groups could not be distinguishad. In reviewing the general rsoarfis, Dr. Itll noted that we had much morn alpha and grastet amplitudas, greats: degrees of synchronisation. than he was aocustnmsd to seeing in the schizoohranlc gatients in Erlaqgen and that we are accustomed to oozing to our patients in St. Loulxl no asked if I had any psychopathologloal~aymptom data for these patlaots. and slots John had taut ms the $228 profiles. I called those as a rapid approximation of the predominant psychopathologlc state of our subjects. The sheet is snolosad, and shes: little differenco in agitation, apathy. delusions, and oven daprssn alon among the four groups. Indeed. tho only distinctlvn dlffarsnsa appaara to ha in hallucinations. and those are only occasional to the sohlsophranlc activity patients. His response, and my own from having worked here to: the past two goats. in to say that tho alllalda papulatlon is an extraordinarily unique one. As no foané when aux Hamilton roviewod our patients. the sub-divisions into depras~ alva dlsordsr. sohlaophrenla. st¢., are guegsss with regard to the oventual cutout. a I I ballavo this data to be quite important because it shows that can can daaoaIttats tho diffsranccs bstween the sohlaophranlos and tho dapraaaed patlants using frequency analyser EEG data. However. the diffsteooos are not in tho usual dlraotlon and ara relatad to the fact that you hava collactsd a unions group of brain damaged or otherwise EEG unique patients in this spacial sample. Sotaly, tho futthat analysis of a largo: group of adolescents, and tho young disturbad patients. using EEG asthoda 1s raquirad. It was with this data haally to also. that l ancouragcd Dave Eogslhatdt to contaot you and aug- gastad that he undartake such a study. Since then, I havo had the opportunity to most with tho Chlldhood novalooment Rassatch Cantor group under Janos Anthony. and have encouraged thou to allow an and my aasoclataa to undsrtake such a study in that: population. Va have our own youth cantor with 50 patlonta, and a study has bean launched in that group as wall. A conflrmatlonnof these observations regarding the diagnosis of tho patlaots �Dr. "‘3 P1311161! ‘-17~64 Pug: Turn: come from your fellas up data. If the informa‘2 avntltblo for these tion paticats. it would he must helpful to know havu bcen rohonpienliued; their lator diagnoais. uspscinlly which, if any. 1f 1: was and: by you: and thair predominant paychapathologieal symptoms lone yuars after out obsorvation. If tbs: information is avnilable fat than: pae1¢nca, it would ho helpful :0 clar1£y the pro-ant poultion at aha find their clinical stat. can 13 Itudy. not sure what I can do with the immadiata data of thts discriminate function. I haw: an opportunity 1n-Loa Angola. to diucuua John Stern's :cpart.n1nd may take occasion than to make some commnnta. Kauuvar. I éo not know haw ova can pub11sh th1s kind of material ainca 1t nay be a ruflcction at the uniqua papulatlon chattcteristien of Hillside. I am Thank yvu very much for your halp, and I would be you can mtka on chain remarks. no you want me to grttciul for any «caucus: return the record: promptly. am hold with to look a: than than-far sang longar yeriod in case or may I Any other nuggaatiout? again? sending Dan the max! version at the depression paper, and of the way, I should ltkc to writ: a more formal nunmaty of is out Sepsrately, I whan zhnt thc EEG am matartal. Sinaernly yours. ?1nk.‘¥, Director Max 2427/5» Inc. 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Title A name given to the resource Correspondence to: Pollack, Max Type The nature or genre of the resource Text Identifier An unambiguous reference to the resource within a given context mfp-05-00-018-3-330 Date A point or period of time associated with an event in the lifecycle of the resource 1964 Creator An entity primarily responsible for making the resource <a title="Fink, Max, 1923-" href="http://id.loc.gov/authorities/names/n79039548" target="_blank">Fink, Max, 1923-</a> Subject The topic of the resource Correspondence -- Correspondence Relation A related resource The Max Fink Collection Description An account of the resource Rights Information about rights held in and over the resource <a title="IN COPYRIGHT - EDUCATIONAL USE PERMITTED" href="http://rightsstatements.org/vocab/InC-EDU/1.0/" target="_blank">IN COPYRIGHT - EDUCATIONAL USE PERMITTED</a> Source A related resource from which the described resource is derived Special Collections and University Archives, University Libraries. 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