The Biology of Behavior; R. Williams

ROGER J. WILLIAMS THE PREVALENCEof student rebel lions throughout the world makes one wonder just how effectively modern education relates to real human problems. To approach the problems of generic man from a biological standpoint may be far too superficial in this scientific age with its tremendous advances in technology; yet, could not the general weakness of human sci ence be the basis for the comment by Robert Frost: "Poets like Shakespeare knew more about psychiatry than any $25-an-hour man"? Biologically, each member of the human family possesses inborn differences based on his brain Dr. Williams is professor of chemistry at the University of Texas at Austin and consultant to the Clayton Foundation's Biochemical Institute. His latest book, The Environmental Prevention of Disease (Pitman Publishing), will appear in April. This article is reprinted by permission from Saturday Review, January 30, 1971. Copyright 1971, Saturday Review, Inc.

structure and on his vast mosaic of endocrine glands - in fact, on every aspect of his physical being. Each of us has a distinctive set of drives - for physical activity, for food, for sexual expression, for power. Each one has his own mind qualities: abilities, ways of think ing, and patterns of mental con ditions. Each one has his own emotional setup and his leanings toward music and art in its vari ous forms, including literature. All these leanings are subject to change and development, but there is certainly no mass movement to ward uniformity. Noone ever "re covers" from the fact that he was born an individual. When a husband and wife dis agree on the temperature of the soup or on the amount of bed cov erings, or if their sleep patterns do not jibe, this is evidence of in born differences in physiology. If 239 240 THE FREEMAN April one child loves to read or is inter ested in science and another has strong likings for sports or for art, this is probably due to inborn differences in makeup. If two peo ple disagree about food or drink, they should not disregard the fact that taste and smell reactions of ten widely differ and are inherited.

If we see a person wearing loud clothing without apparent taste, we need to remember, in line with the investigations of Pickford in England, that each individual has a color vision all his own; some may deviate markedly from the pack. The inborn leanings of Mozart were evident by age three, and he began composing when he was four. Capablanca was already a good chess player - good enough to beat his father - when at age five he played his first game. For many centuries, Indian philoso phers have recognized innate in dividuality, which they explain on the basis of experience in previous incarnations. Inborn Individuality Biology has always recognized inborn individuality. If this in born distincti veness had not al ways been the rule in biology, evo lution could never have happened. It is a commonplace fact in biol ogy that every living organism needs a heredity and a suitable environment. Unfortunately, in the minds of most intellectuals biolog ical considerations have been pushed aside.

Professor Jerry Hirsch, a psy chologist at the University of Illi nois, has protested in Science that "the opinion makers of two gen era tions have literally excomm uni cated heredity from the behavioral sciences." This neglect of the study of heredity has effectively pro duced a wide gap between biology and psychology. Biology deals with living things, and psychology is logically an important phase of biology. Bernard Rimland, director of the Institute for Child Behavior Research in San Diego, in review ing my book, You Are Extraor dinary in American Psychologist, wrote: "Since between-group dif ferences are commonly a small fraction of the enormous, impor tant, and very interesting within group (individual) difference, psychology's focus on average values for heterogenous groups represents, as Williams indicates, a chronic case of throwing out the babies with the bath water. 'Throw ing out the babies' is bad enough, but we psychologists have the du bious distinction of making this error not only repeatedly but on purpose."

Social solidarity exists and so cial problems are pressing, but we 1971 THE BIOLOGY ,OF BEHAVIOR 241 cannot hope to deal with these successfully by considering only generic man, that is, average val ues for heterogenous groups. We need a better understanding of men. A Firm Foundation The basic problem of generic man is how to achieve "life, lib erty, and the pursuit of happi ness." The writers of our Declara tion of Independence were on solid ground, biologically speaking, when they took the position that each human being has inalienable rights and that no one has, by virtue of his imagined "royal blood," the right to rule over an other. In their emphasis on man kind as individuals, Jefferson and his co-authors were closer to bio logical reality than are those of our time who divorce psychology from biology and center their at tention on that statistical artifact, the average man.

Because each of us is distinc tive, we lean in different direc tions in achieving life, liberty, and the pursuit of happiness. Happi ness may come to individual peo ple in vastly different ways, and so the human problem of achieving life and the pursuit of happiness resolves itself, more than it is comfortable to admit, into a series of highly individual human prob lems. We need to take this consideration into account in attempt ing to build an advanced society. In understanding the scope of human desires, it is worthwhile to consider briefly the problems that real - as opposed to theoretical people face. These may be grouped under four headings: 1) making a livelihood; 2) maintaining health; 3) getting along with others; and 4) getting along with one's self. These four categories, singly or in combination, cover most of the familiar human problems - mar riage and divorce, crime, disease, war, housing, air and water pol lution, urban congestion, race re lations, poverty, the population explosion, the all-pervading prob lem of education, and the building of an abundant life.

Making a Livelihood The importance of approaching the problem of making a liveli hood from the individual's stand point lies in the fact that in our complex society a multitude of ways exist - an estimated 23,000 - in which people can make a liv ing. People are not by any means interchangeable parts in society. While some might function well in anyone of a large number of ca pacities, many others might be highly restricted in their capabil ities and yet be extremely valuable members of society. The idea that it is all a matter of education and 242 THE FREEMAN April training cannot possibly be squared with the hard biological facts of inborn individuality. This perversion of education perpetu ates the banishment of heredity an ever present biological fact from our thinking. Fitting to gether people and jobs is just as real and compelling as fitting shoes to people. People sometimes suffer from ill-fitting shoes; they suffer more often from ill-fitting jobs.

The maintenance of health both physical and mental-involves individual problems to such a de gree that it is difficult to exagger ate their role. Ever since the days of Hippocrates it has been known in a vague way that "different sorts of people have different mal adies," but we are only beginning to learn how to sort people on the basis of their inborn individual characteristics. When we have be come expert in this area, vast progress will result, particularly in the prevention of metabolic and psychosomatic diseases, Le., those not resulting from infection. As long as we dodge the biological fact of inborn individuality, we remain relatively impotent in the handling of diseases that arise from within individual consti tutions. The problem of getting along with others is a very broad one, in which individual problems are basic. If husbands and wives and members of the same family al ways get along well together, we would have some reason to be sur prised when squabbles break out within business, religious, or po litical groups. If all these kinds of squabbles were nonexistent, we would have a basis for being sur prised at the phenomenon of war.

Distinctive Qualities While self-interest and differ ences in training are vital factors in these common conflicts, another factor should not be overlooked: the inborn individuality of the participants. There is a mass of evidence to support the thesis that every individual, by virtue of his or her unique brain structure and peripheral nervous system, is psy chologically condition able in a dis tinctive manner. Thus, a person's unique nervous system picks up distinctive sets of impulses, and because his interpretive apparatus is also unique he learns different things and interprets the world in a distinctive manner. Even if two individuals were to have exactly the same learning opportunities, each would think differently and not quite like anyone else. This is the basis for the observation by Santayana: "Friendship is almost always the union of a part of one mind with another; people are friends in spots."

1971 THE BIOLOGY OF BEHAVIOR 243 In spite of our attempts to do so, individual minds cannot be compared on a quantitative basis. The minds of Shakespeare and Einstein cannot be weighed one against the other; there were many facets to the minds of each. At birth the two minds were equally blank, but as they ma tured, each saw, perceived, and paid attention to different aspects of the world around it. Each was conditionable in a unique way. Each Mind Unique The recognition of the unique ness of human minds is essential to human understanding. By de veloping expertness in this area, psychology will eventually become far more valuable. In an advanced society with a growing population and closer associations, it is ob viously essential that we learn bet ter how to get along with each other. When we are unaware of the innate differences that reside within each of us, it becomes very easy to think of one who disagrees with us as a "nitwit" or a "jerk,"

or perhaps as belonging to the "lunatic fringe." When we appre ciate the existence of innate dif ferences, we are far more likely to be understanding and charit able. Strife will not be automati cally eliminated, but tensions can be decreased immeasurably. Individual problems are at the root of the problem of crime. Many years ago, James Devon placed his finger on the crucial point. "There is only one principle in penology that is worth any consideration: It is to find out why a man does wrong and make it not worth his while." The question, "Why does a particular man commit crime?" is a cogent one; the question, "Why does man turn to crime?" is rela tively nonsensical. Since all human beings are in dividual by nature, they do not tick in a uniform way nor for the same reasons. Broadly speaking, however, many doubtless turn to crime because society has not pro vided other outlets for their en ergies. If we could find a suitable job for every individual, the prob lem of crime would largely vanish.

The problem of crime is thoroughly permeated with individual prob lems; it cannot be blamed solely on social conditions, because as the studies of Sheldon and Eleanor Glueck have shown, highly re spected citizens may come from areas where these conditions are the worst. A Race of Individuals Racial relations would ease tre mendously if we faced squarely the biological facts of individual ity. If we were all educated to know that all whites are not the same, that all Negroes do not fit 244 THE FREEMAN April in the same pattern, that all Latins are not identical, that all Ameri can Indians are individuals, and that all Jews do not fit a stereo type, it would help us to treat every member of the human race as an individual. It is no denial of the existence of racial problems to assert that individual problems need to be stressed more than they are. For individual Negroes and individual whites, the pursuit of happiness is by no means a uniform pursuit.

Doubtless, although there are whites and Negroes who would think they had reached utopia if they had a decent shelter and were assured three meals a day, this would not satisfy millions of others for whom striving and a sense of accomplishment are para mount. "The Negro problem" or "the white problem" - depending on one's point of view - is shot through with a host of individual problems. Learning to live with one's self is certainly an individual problem, and will be greatly eased by rec ognition of inborn individuality. Much unhappiness and many sui cides can be traced to misguided desire to be something other than one's self. Each of us as an in dividual has the problem of find ing his way through life as best he can. Knowing one's self as a dis tinctive individual should be an important goal of education; it will help pave the road each of us travels in his pursuit of happiness.

Dangers of Oversimplification Why have these facts of in..; dividuality not been generally ac cepted as a backdrop in every con sideration of human problems? For one thing, many people, in cluding scholars, like being grandi ose and self-inflationary. To make sweeping pronouncements about "man" sounds more impressive than to express more limited con cerns. Simplicity, too, has an at tractiveness; if life could be made to fit a simple formula, this might be regarded as a happy outcome. One excuse for excommuni cating inheritance from the be havioral sciences for two genera tions has been the fact that in heritance in mammals is recog nized by careful students as being exceedingly complex and difficult to interpret. It is true that some few characteristics may be inherit ed through the operation of sin gle genes or a few recognizable ones. But other characteristics those that differ in quantity - are considered to be inherited in ob scure and indefinable ways com monly ascribed to multiple genes of indefinite number and char acter. These multiple-gene char acteristics include, to quote the geneticists Snyder and David, 1971 THE BIOLOGY OF BEHAVIOR 245 "the more deep-seated characters of a race, such as form, yield, in telligence, speed, fertility, strength, development of parts, and so on." To say that a particular characteristic is inherited through the mediation of multiple genes is to admit that we are largely ignor ant of how this inheritance comes about.

Identical Twins? Recently, some light has been thrown on this problem by experi ments carried out in our labora tories. These experiments in volved armadillos, which are un usual mammals in that they com monly produce litters of four monozygous ("identical") quad ruplets that are necessarily all males or all females. By making measurements and studying sixteen sets of these ani mals at birth, it became evident that although they develop from identical genes, they are not iden tical at all. Organ weights may differ by as much as twofold, the free amino acids in the brain may vary fivefold, and certain hormone levels may vary as much as seven-, sixteen-, or even thirty-twofold. These findings clearly suggest that inheritance comes not by genes alone but by cytoplasmic factors that help govern the size of organs (including endocrine glands) and the cellular. makeup of the central nervous system.

"Identical" twins are not identi cal except with respect to the genes in the nucleus of the egg cell from which they developed. One of the most interesting sug gestions arising out of this study is the probability that individual brain structures, which have been known to have "enormous" differ ences since the investigations of Lashley more than twenty years ago, are made distinctive by the same mechanisms that make for differences in organ weights. The size, number, and distributions of neurons in normal brains vary greatly; this is biologically in line with the uniqueness of human minds. The further elucidation of this type of inheritance should help to focus more attention on heredity. If this line of thought is valid it makes even more ridiculous the invitation issued by the Ford Foundation to the biological sci ences to stay out of the precinct of human behavior. The expres sion "behavioral science" came into being many years ago as a result of the formulation of the Ford Foundation-supported· pro grams. Biochemistry and genetics, for example, were kept apart from the "scientific activities designed to increase knowledge of factors which influence or determine hu man conduct."

246 THE FREEMAN April What can be done to bridge the gap between psychology and biol ogy? More importantly, how can we develop expertise in dealing with the human problems that plague us but at present go un solved? Differential Psychology A broad, long-range, and prac tical strategy for learning how to deal more effectively with human problems is to explore, problem by problem, the inborn human char acteristics that are pertinent to each one. Differential psychology, for example, needs to be intensi fied and greatly expanded; this can probably be done most effec tively in connection with a series of problem-centered explorations. Some of the specific problem areas that require study from the standpoint of how inborn charac teristics come into play are: de linquency and crime, alcoholism, drug addiction, unemployability, accident proneness, cancer, heart disease, arthritic disease, mental disease, and broadest of all, educa tion. Each of these problems could be vastly better understood as the result of interdisciplinary study of the influences of inborn char acteristics. Such study would in clude differential psychology when applicable, combined with exten sive and intensive biochemical and physiological examinations, for example, of blood, saliva, urine, and biopsy materials. To expedite these investigations, automated equip ment and computer techniques would be used extensively to help interpret the complex data.

It is not likely that these ex plorations will find that some in dividuals are born criminals, others alcoholics, etc. Once we recognize the unique leanings that are a part of each of us, we will see how, by adjusting the en vironment, these leanings can be turned toward ends that are so cially constructive. Every inher ited factor can be influenced by an appropriate adj ustment of the en vironment. All this should not be made to sound too easy; it may be more difficult than going to the moon, but it will be far more worthwhile. One of these specific problems alcoholism - has been of special interest to me. After about twen ty-five years of study, I am con vinced that inborn biochemical characteristics are basic to this disease, but that expert applica tion of knowledge about cellular nutrition (which is not far off) will make it scientifically possible to prevent the disease completely and to correct the condition if the application of corrective measures is not too long delayed.

Inborn inherited characteristics have a direct bearing on the cur1971 THE BIOLOGY OF BEHAVIOR 247 rent revolt against the Establish ment. If biology had not been ban ished from behavioral science, and if students and other intellectuals were well aware of the biological, roots of their existence, it would be taken for granted that con formity is not a rule of life. Recognizing Our Differences Can Lead to Harmony If all that we human beings in herit is our humanity, then we all should be reaching for the same uniform goal: becoming a thor oughly representative and respect able specimen of Homo sapiens. There is rebellion against this idea. Revolters want to do "their thing." The revolt takes on many forms because many unique in dividuals are involved. If nonconformity had a better status in the eyes of the Establish ment (and it would have if our thinking were more biologically oriented), exhibitionism would be diminished and the desire of each individual to live his own life could be fostered in a natural way.

Human beings are not carbon copies of one another. Students and others who are in revolt have found this out. Perhaps without fully recognizing it, they are pleading for a recognition of in born individuality. This is essen tially a legitimate plea, but it can take the form of disastrous an archy. A peaceful means of help ing resolve the ideological .mess we are in is to recognize heredity by having a happy marriage of biology and behavioral science.' IDEAS ON LIBERTY Agreement to Disagree A "UNITED STATES" was only possible if men could agree to dis agree about a great many things. What was expedient for them is, however, an essential of liberty. Theoretically, it might be desirable for all men to agree on every thing, though I doubt it. Practically, such agreement would only be possible if all individual wills were crushed and subjected to a single wilL The effort to do this is always in the direction of the well traveled road to despotism. The alternatives are agree.ment to disagree or despotism.

CLARENCE B. CARSON, The American Tradition PROPERTY JAMES MADISON THIS TERM, in its particular appli ca tion, means· "that dominion which one man claims and exer cises over the external things of the world, in exclusion of every other individual." In its larger and juster mean ing, it embraces everything to which a man may attach a value and have a right, and which leaves to everyone else the like advantage. In the former sense, a man's land, or merchandise, or money, is called his property. In the latter sense, a man has a property in his opinions and the free communication of them. He has a property of peculiar vaiue in his religious opinions, and in the profession and practice dic tated by them. He has a property very dear to him in the safety and liberty of his person. He has an equal property in the 248 free use of his faculties, and free choice of the objects on which to employ them.