http://exhibits.library.stonybrook.edu/mfp/files/original/3dbf4b5d6145035fd7280c762b95e1ed.pdf 399786d6981889851fd9c0f1e9186979 PDF Text Text , MW 1‘- December 15, 1969 Dr. Harold L. Williams Department of Psychiatry University of Oklahoma.Hedical Center 800 Northeast 13th Street Oklahoma "is. swim-v, ~.~ Oklahoma 73104 Dear Hal, ..- -.‘mv-r City, It pleasure to review the paper "A longitudinal study of the quantitated base~line electroencephalograms in reformatory inmates and normal volunteers” by Goldstein and Hopkins. It is an essay on the variability of the amplitude measure of the 886 in normal subjects and suggests that the individual variability of the measure is so great as to make useless single baseline recordings; but, also that the group data is such that averages of subjects, even single recordings, are representative of the total pepulation. The observations are presented with statistical the support and the conclusions are reasonable and are based ondone be should of that the kind a study data presented. It is in psychophysiology, and presents the basis fer the applications that will be made by others. I believe it should be published, with some clarifications by the authors. 1. was a The females include three who used anti-ovulatory drugs. others, presumably went through their menstrual cycle. The records from two different laboratories, those of Ulett and The Margerison, indicate the menstrual cycle. that systematic changes in The EEG authors should indicate affected their measures (Pg. 5). occur during how this variability important element of variability in the normal EEG is the state of alertness. The authors fail to define the measures they used to maintain alertness, and yet state (pg. 7—8) that they discarded those samples that indicated drowsiness. Since a principal sign of drowsiness is a reduction in amplitudes and an increase in frequency variability, perhaps this procedure (artefact control) provided the basis for the variability reported. The procedure used for artefacting records must be spelled out, and if unsatisfactory, would be the principal basis for rejection of the study. An �/ «aw-«qu .._, --w-:vv wet—"2 'Yfi‘fluwu December 15. 1969 ~2- Dr. Williams interesting observation, that EEG in systematic ways for the situational anxiety altered the subjects under long term observation. This is an introduction to a study and may be omitted here as an unproven The authors suggest an assertion (pg. 13-14). The contention that anxiety is a feature of schizophrenia is also an interesting contention but unrelated to the results of this methodological study. The suggestions on page 16, 18 are assertions that require study and are best deleted for this report. Much of the discussion pp. 16—19 is not relevant to the normative aspects of the study, reflecting the authors extensive interest, and could be deleted here. Table V is interesting. The authors know the literature on the 'first night effect' in sleep recording and the sequence effects in drug studies. yet they seem surprised at the observation here. Is this observation unrelated to the ones reported earlier? and Such normative data provides the this report warrants publication. the data for basis for further studies me. My questions would clarify Sincerely yours, ”ax Fink, rat-D. Professor of Psychiatry Mszp � Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Correspondence Text A resource consisting primarily of words for reading. 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Type The nature or genre of the resource Text Identifier An unambiguous reference to the resource within a given context mfp-05-00-023-6-551 Date A point or period of time associated with an event in the lifecycle of the resource 1969 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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