was pleased to be offered the opportunity tocontribute a chapter devoted to historical aspects ofanxiety. However, my qualifications are clearly notthose of a historian, who is properly concerned withdocumentation derived from primary data.Primary data consist of documents, records, notes,reports, data, clinical records, hospital charts, churchdossiers, tax receipts, artifacts, etc, produced during thehistorical period in question. Skilled comparative eval-uations yield relatively firm inferences, which never-theless are often controversial and open to revision-ism.In psychiatry, much early theorizing derives from anec-dotal case reports that often, as Freud noted, read likenovelistic fiction. Unfortunately, that resemblance ismore than superficial. Proper historical studies of pri-mary data have shown that many reports were not onlyliterally fiction in terms of clinical description, but also,more poignantly, in terms of clinical successes thatapparently validated innovative therapeutic techniquesand novel, insightful theories. Of particular note are thehospital records of Anna O., Freuds actual clinicalnotes on the Rat Man, and the FreudFliess corre-spondence. These primary sources stand in stark con-tradiction to published reports. Further skepticism iswarranted by the problematic evidence for allegianceeffects, where an investigators investments closelyparallel their findings. Therefore, critical skepticism isnecessary.My understanding of historical developments derivesfrom two sourcespersonal experiences and studiesamplified by reading papers and summary accounts atsome remove from primary data.This requires an infor-mal essay rather than a detailed footnoted and refer-enced thesis. Therefore, these historical notes on anxi-ety are quite personal, emphasizing influences thataffected my understanding of that important, ambigu-ous term. Hopefully, some inferences are justified.2 9 5C l i n i c a l r e s e a r c hHistorical aspects of anxietyDonald F. Klein, MDKeywords: anxiety; panic; fear; history; theoryAuthor affiliations: Columbia University, Professor of Psychiatry, New York State Psychiatric Institute, Director of Research, Department
of Therapeutics,New York,
NY, USAAddress for correspondence: Prof Donald F. Klein, Columbia University, New York State Psychiatric Institute, Department of Therapeutics, 1051 Riverside
Drive Unit 22, New York,
NY 10032, USA (e-mail: Donaldk737@aol.com)Anxiety is a key term
for behavioral, psychoanalytic,neuroendocrine, and psychopharmacological
observa-tions and theories. Commenting on
its historical aspectsis difficult, since history is properly
a study of primarydata. Unfortunately, much clinical
anecdote does notcorrespond to factual records of a
long time ago. Evenreports of objective studies may suffer
from allegianceeffects. This essay therefore primarily
reflects the per-sonal impact of others work
against the background ofmy experiences, clinical and scientific.
These lead me toquestion the assumption that anxiety, as
it exists insyndromal disturbances, is simply the quantitativeextreme of the normal anxiety that
occurs during theanticipation of danger. An alternative
view that empha-sizes dysfunctions of distinct evolved
adaptive alarm sys-tems is presented.Dialogues Clin Neurosci.
2002;4:295-304.I