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THE BIOMEDICAL MODEL
Dr. Jaime Llambías-Wolff, York University
Canada
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CONTENT
THE ORIGINS AND HISTORY OF THE BIOMEDICAL MODEL ARISTOTLE, GALILEO, DESCARTES THE ROLE OF SCIENCE AND BRIEF HISTORY OF MEDICAL PRACTICE THE GERM THEORY MEDICAL INNOVATIONS AND DEVELOPMENT OF NEW TECHNOLOGIES CONTEMPORARY MEDICINE THE PHYSICIAN TODAY
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THE ORIGINS AND HISTORY OF THE BIOMEDICAL MODEL
MEDICINE = INTERVENTION TO OVERCOME OBSTACLES AND RESTAURE NATURAL BALANCE
HIPPOCRATIC MEDICINE = NATURAL BALANCE
HEALING BY THE POWER OF NATURE = TREATMENT (Galen (130-200 A.D.)
FOUNDATIONS IN GREECE : ARISTOTELIAN TELEOLOGY
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Aristotle Born: 384 BC in Stagirus, Macedonia, Greece
Died: 322 BC in Chalcis, Euboea, Greece
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Aristotle, more than any other thinker, determined the
orientation and the content of Western intellectual history
An extraordinary impact on people attributed to his logistical way of thinking and rigorous scientific
procedure.
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AFTER COLLAPSE OF ROMAN EMPIRE AND BEGINNING OF
MIDDLE AGE (500-1500)
? Conflict between philosophy and religion
Church values dominates the medical practice
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GALILEO – GALILEI (No natural or secretes explanations anymore and the Earth is not the center of the Universe) DESCARTES (mathematics, physics, reason) )physics and cosmology)
By the end of Middle Age and later with the Rennaissance ( XVII) Century the paradigm
changed
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Galileo Galilei
Born: 15 Feb 1564 in Pisa (now in Italy)
Died: 8 Jan 1642 in Arcetri (near
Florence) (now in Italy)
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He is chiefly remembered for his work on free fall, his use of the telescope and his employment
of experimentation. He carried out experiments on strings to
support his musical theories.
Galileo studied medicine at the university of Pisa, but his real interests were always in mathematics and natural philosophy.
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“Take note, theologians, that in your desire to make matters of faith out of propositions
relating to the fixity of sun and earth you run the risk of eventually having to condemn as heretics those who would declare the earth to stand still and the sun to change position -- eventually, I say, at such a time as it might be proved that the earth moves and the sun
stands still”.
From: Dialogue
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His duties were mainly to teach Euclid’s geometry and standard
(geocentric) astronomy to medical students, who would need to know
some astronomy in order to make use of astrology in their medical practice
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In 1598, Galileo had stated that he was a Copernican.
Copernicanism was in
contradiction with Scripture
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His was found to be suspected of heresy and
condemned to house arrest, for life . He was also forbidden to publish.
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René Descartes
Born: 31 March 1596 in La Haye (now Descartes), France
Died: 11 Feb 1650 in Stockholm, Sweden
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... in order to express my judgment more freely, without being called upon to assent to, or to refute the opinions of the learned, I resolved to leave all
this world to them and to speak solely of what would happen in a new world, if God were now to create ... and allow her to act in accordance with the laws
He had established.
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Mechanical, logical, causal-relationship become the dominant thinking ………….. SCIENCE
Each problem that I solved became a rule
which served afterwards to solve other problems (Descartes)
SCIENCE=
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I concluded that I might take as a general rule the principle that all things which we very clearly and
obviously conceive are true: only observing, however, that there is some difficulty in rightly
determining the objects which we distinctly conceive.
Discours de la Méthode. 1637.
Quotations by René Descartes
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Roots of biomedical Model
• Religious view of body altered to scientific perspective with Descartes’ theory of mind-‐body dualism
• Body viewed objectively • Medical action concerned with causes of
disease-‐ problems could be pinpointed • Materialization-‐ humans only seen as
physiological entities
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Biomedical Model
Mechanical Analogy-‐ body analogous to machine, doctor similarly to mechanic, disease needs doctor to ‘fix’ problem. Mind Body Dualism-‐ mind and body two separate entities.
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Throughout the history of Western science, the development of biology
has gone hand in hand with that of
medicine.
Development of Germ Theory and the reinforcement of the BIOMEDICAL MODEL
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The mechanistic view of life firmly established in biology since the first
scientific revolution of the 17th century has dominated the attitude of
the physicians towards health and illness.
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The human body is regarded as a machine that can be analyzed in
terms of its parts.
The diseases are seen as malfunctioning of biological
mechanisms and studied from the point of view of cellular and
molecular biology.
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Our current Paradigm - dualism
www.telegraph.co.uk Coffequill.blogspot.com
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• Can the doctrine of mind-‐body dualism be applicable to stress?
• Is stress strictly restricted to the mind, or does it have biological effects as well?
• How certain can we be of the effects of stress on our physical health, if there is no clear link between disease and stress?
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Detailed knowledge of biological functions on the cellular and
molecular levels not only led to the extensive development of drug therapy but was of tremendous
help for surgery, allowing surgeons to advance their art to
the levels of sophistication beyond all previous expectations.
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The development of medical technology became all pervasive in the modern
medical care.
The increasing dependence on medicine of Hi-technology has raised a number of problems which are not only of medical or technical nature, but involve much broader social, economic and moral
issues
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Three centuries after Descartes, the science of medicine is still based on the notion of the body as a machine, of disease s a consequence of break-down of the machine and the doctor’s task as the repairer of the machine.
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BUT …………. The new concepts in modern physics have brought about a profound change in our world view. ‘ from the mechanistic concept of Descartes and Newton to :
a holistic and ecological view, a view similar to the views of mystics of all ages
and traditions.
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WHY ?
‘ The best estimates are that the medical system ( doctors, drugs and hospitals ) affects only about 10% of the usual indices for measuring health.’ The Dean of the Graduate School of Public Policy, U.C. Berkley States,
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‘ We are left with approximately the same roaster of common major diseases
as in 1950 and although we have accumulated a formidable body of
information about some of them in the intervening time, the accumulated
knowledge is not yet sufficient to permit either the prevention or the outright cure
of them.
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The limits of the classical biomedical model in achieving optimal treatment and recovery, disease prevention, and
health promotion are now clearly recognized.
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Increasingly, the impact of psycho-social, cultural, political and economical
variables on the individual and community health has come under consideration.
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Social scientists have responded to these trends by consolidating health-related sub-specialists in disciplines
such as sociology, anthropology, economics and political sciences.
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To reincorporate the notion of healing in the theory and practice of medicine, medical science will have to transcend its narrow view
of health and illness.
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This does not mean that it will have to be less scientific.
On the contrary, by broadening
this conceptual basis it will become more consistent with
recent developments in modern science.
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To begin with, the definition of health given by W.H.O. in the preamble of
its charter may be useful ;
‘ Health is a state of complete, physical, mental and social well-
being ; and not merely the absence of disease or infirmity. ‘
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Medical curricula all over the world have been increasing the exposure of medical
students to various social sciences.
The interaction between social scientists and health-related specialists has thus
been increasing in the academic, research and services fields.
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Science has been affected by a point of view which tries to be value-free. This is of course
mere prejudice.
Scientists will not need to be reluctant to adopt a holistic framework for fear of being unscientific.
Modern physics can show that such a framework is not only scientific but is in agreement with the most advanced scientific theories of physical reality. ‘ David Bohm.
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Questions
• What evidence is there of an emerging paradigm a shift from scientific medicine?
• Can you think of any other medical paradigms that exist? How effective are they?
• Who/What (social structures etc.) are responsible for keeping this paradigm alive?
• Are there ever benefits for viewing the body in a dualistic manner?
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Acknowledgments: I wish to recognize and thank the many students that, during several years, have kindly facilitated various slides, which are incorporated in this presentation.
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THE END