COMPUTER SIMULATION OF PARANOIA

		K.M. COLBY

1. AIM AND SCOPE
	This monograph describes a computer simulation of
paranoid processes as they appear in a psychiatric interview.
The aim of the book is to present the simulation model in detail
along with background information necessary for understanding
the strategy of simulation. How the model works and how it is
tested for validation is described at length. The intended audience
consists of psychiatrists, clinical psychologists, workers in
artificial intelligence and behavioral scientists interested
in the simulation of thought processes.

2. SPECIAL FEATURES
(a) The paranoid model represents the first successful simulation
of a psychopathological process achieved. It has been subjected
to, and passed, indistinguishability tests in which its performance
is compared to the performance of actual paranoid patients in a
diagnostic psychiatric interview.
(b) Casting a theory in the form of a simulation model is
a relatively new method in the behavioral sciences. This model
represents a new explanation of paranoid processes in
symbol-processing terms. The theory is a cognitive-affective
one in which a strategy of forestalling  humiliation plays a central role.
(c) Previous and current theories of paranoia are reviewed and
evaluated for their coherence and testability. The model itself
represents the most recent advance in the field.
(d)  Testing and validating models of psychopathology has not
been extensively discussed in the literature presenting an actual
example of such a model as illustration. Since the model simulates
the linguistic behavior of paranoid patients in a psychiatric
interview, the problems of machine understanding of natural
language are faced and workable solutions adequate for the model
are proposed.
(e)  An explanation of paranoid processes is offered in
symbol-processing terms. An algorithm for generating behavior
characterized as paranoid is described in detail.
(f)  Up to February 1974.
(g)  Examples of the model's interview behavior are presented
extensively along with examples of interview behavior of
paranoid patients.
(h) Since the book is unique, no.
(i) Yes. For the past four years I have given lectures about
the paranoid model here at Stanford and at several universities
in the country.
(j) Chapter 2 is of special importance since it provides
background information for those unfamiliar with the concepts
and terms of the symbol-processing approach. Also Chapter 6
is special because it discusses the difficult problem of
validation procedures for simulation models.

3.  COMPARISON WITH COMPETITIVE BOOKS
	The only slightly competitive book is one I co-edited
with Schank (COMPUTER MODELS OF THOUGHT AND LANGUAGE, Schank, R.
and Colby, K.M., W.H. Freeman, San Francisco, 1973). It sells
for $13.50. This book will sell very well among graduate students.
In this volume ten leading figures in the field describe their
work. In my chapter the paranoid model is described briefly.
Those interested in a more detailed treatment of the paranoid
model will buy COMPUTER SIMULATION OF PARANOIA. There exists
no other competition in the field.

4.  PERSONAL DETAILS
	Kenneth Mark Colby. I have an M.D. from Yale University.
I am a Senior Research Associate in Computer Science at
Stanford University and I am a Career Scientist sponsored
by the National Institute of Mental Health. I am a U.S. citizen
born in Naugatuck, Connecticut on January 12, 1920.
5. COURSES
(a) This book can be used as a supplementary text and reference book
in courses in cognitive psychology, artifificial intelligence,
computer simulation, and information-processing psychiatric research.
(b) The 10 co-authors of the Schank and Colby volume will
recommend the book to their students.
6. EDUCATIONAL MARKET
	No. The book is too advanced and specialized to be a text.
7. MARKET FOR INDIVIDUAL SALES
(a)  Scholars and scientists will study this book. Because it is
historically unique, because it intersectc two black arts (psychiatry
and artificial intelligence), and because Pergamon will do a fine
publishing job, this book will become a collector's item.
(b)  The American Psychiatric Association and the American
Psychological Association. The way to reach these memberships
is to run ads in the American Journal of Psychiatry, the Archives
of  General Psychiatry, the American Psycholigist, and Contemporary
Psychology.
(c) No. I regret I know no one in Australia and New Zealand.
(d)  Philosophy, linguistics, methodology of science.
(e) Perhaps but I'm not sure this is very effective promotionally.
8.  INDUSTRIAL SALES
(a) No.
(b) No.
(c) No.
9.  REVIEWS AND ADS
(a) In addition to those listed in (7) above, I would consider
the following: Journal of Nervous and Mental Disease, Comprehensive
Psychiatry, Journal of Psychiatric Research, International
Journal of Psychiatry, British Journal of Psychiatry, British
Journal for the Philosophy of Science, Philosophy of Science,
Scientific American, Science, Nature.
(b) I don't know anyone in this category.
(c) See (7) above.