Object relations theory
This article is written like a personal reflection, personal essay, or argumentative essay that states a Wikipedia editor's personal feelings or presents an original argument about a topic. (June 2012) |
Part of a series of articles on |
Psychoanalysis |
---|
Object relations theory in psychoanalytic psychology is the process of developing a psyche in relation to others in the childhood environment. It designates theories or aspects of theories that are concerned with the exploration of relationships between real and external people as well as internal images and the relations found in them.[1] It maintains that the infant's relationship with the mother primarily determines the formation of his personality in adult life.[2] Particularly, the need for attachment is the bedrock of the development of the self or the psychic organization that creates the sense of identity.[2]
Theory
While object relations theory is based on psychodynamic theory, it modified it so that the role of biological drives in the formation of adult personality received less emphasis.[3] The theory suggests that the way people relate to others and situations in their adult lives is shaped by family experiences during infancy. For example, an adult who experienced neglect or abuse in infancy would expect similar behavior from others who remind them of the neglectful or abusive parent from their past. These images of people and events turn into objects in the unconscious that the "self" carries into adulthood, and they are used by the unconscious to predict people's behavior in their social relationships and interactions.
The first "object" in someone is usually an internalized image of one's mother. Internal objects are formed by the patterns in one's experience of being taken care of as a baby, which may or may not be accurate representations of the actual, external caretakers. Objects are usually internalized images of one's mother, father, or primary caregiver, although they could also consist of parts of a person such as an infant relating to the breast or things in one's inner world (one's internalized image of others).[4] Later experiences can reshape these early patterns, but objects often continue to exert a strong influence throughout life.[5] Objects are initially comprehended in the infant mind by their functions and are termed part objects.[5] The breast that feeds the hungry infant is the "good breast", while a hungry infant that finds no breast is in relation to the "bad breast".[5] With a "good enough" facilitating environment, part object functions eventually transform into a comprehension of whole objects. This corresponds with the ability to tolerate ambiguity, to see that both the "good" and the "bad" breast are a part of the same mother figure.[5]
History
The initial line of thought emerged in 1917 with Ferenczi and, early in the 1930s, Sullivan, coiner of the term "interpersonal".[6] British psychologists Melanie Klein, Donald Winnicott, Harry Guntrip, Scott Stuart, and others extended object relations theory during the 1940s and 1950s. Ronald Fairbairn in 1952 independently formulated his theory of object relations.[7]
The term has been used in many different contexts, which led to different connotations and denotations.[1] While Fairbairn popularized the term "object relations", Melanie Klein's work tends to be most commonly identified with the terms "object relations theory" and "British object relations", at least in contemporary North America, though the influence of 'what is known as the British independent perspective, which argued that the primary motivation of the child is object seeking rather than drive gratification',[8] is becoming increasingly recognized. Klein felt that the psychodynamic battleground that Freud proposed occurs very early in life, during infancy. Furthermore, its origins are different from those that Freud proposed. The interactions between infant and mother are so deep and intense that they form the focus of the infant's structure of drives. Some of these interactions provoke anger and frustration; others provoke strong emotions of dependence as the child begins to recognize the mother is more than a breast from which to feed. These reactions threaten to overwhelm the individuality of the infant. The way in which the infant resolves the conflict, Klein believed, is reflected in the adult's personality.[9]
Freud originally identified people in a subject's environment with the term "object" to identify people as the object of drives. Fairbairn took a radical departure from Freud by positing that humans were not seeking satisfaction of the drive, but actually seek the satisfaction that comes in being in relation to real others. Klein and Fairbairn were working along similar lines, but unlike Fairbairn, Klein always held that she was not departing from Freudian theory, but simply elaborating early developmental phenomena consistent with Freudian theory.
Within the London psychoanalytic community, a conflict of loyalties took place between Klein and object relations theory (sometimes referred to as "id psychology"),[10] and Anna Freud and ego psychology. In America, Anna Freud heavily influenced American psychoanalysis in the 1940s, 1950s, and 1960s. American ego psychology was furthered in the works of Hartmann, Kris, Loewenstein, Rapaport, Erikson, Jacobson, and Mahler. In London, those who refused to choose sides were termed the "middle school," whose members included Michael Balint and D.W. Winnicott. A certain division developed in England between the school of Anna Freud and that of Melanie Klein,[11][12] which later influenced psychoanalytic politics worldwide.[13] Klein was popularized in South America while A. Freud garnered an American allegiance.[14]
Fairbairn revised much of Freud's model of the mind. He identified how people who were abused as children internalize that experience. Fairbairn's "moral defense" is the tendency seen in survivors of abuse to take all the bad upon themselves, each believing he is morally bad so his caretaker object can be regarded as good. This is a use of splitting as a defense to maintain an attachment relationship in an unsafe world. Fairbairn introduced a four-year-old girl with a broken arm to a doctor friend of his. He told the little girl that they were going to find her a new mommy. "Oh no!" the girl cried. "I want my real mommy." "You mean the mommy that broke your arm?" Fairbairn asked. "I was bad," the girl replied.[15] She needed to believe that her love object (mother) was all good, so that she could believe she would one day receive the love and nurturing she needed. If she accepted her mother was bad, then she would be bereft and alone in the world, an intolerable state. She used the Moral Defense to make herself bad, but preserve her mother's goodness.
Kleinian object relations theory
Unconscious phantasy
Klein termed the psychological aspect of instinct unconscious phantasy (deliberately spelled with 'ph' to distinguish it from the word 'fantasy'). Phantasy is a given of psychic life which moves outward towards the world. These image-potentials are given a priority with the drives and eventually allow the development of more complex states of mental life. Unconscious phantasy in the infant's emerging mental life is modified by the environment as the infant has contact with reality.[16]
From the moment the infant starts interacting with the outer world, he is engaged in testing his phantasies in a reality setting. I want to suggest that the origin of thought lies in this process of testing phantasy against reality; that is, that thought is not only contrasted with phantasy, but based on it and derived from it.[16]: 45
The role of unconscious phantasy is essential in the development of a capacity for thinking. In Bion's terms, the phantasy image is a preconception that will not be a thought until experience combines with a realization in the world of experience. The preconception and realization combine to take form as a concept that can be thought.[17][18][19] The classic example of this is the infant's observed rooting for the nipple in the first hours of life. The instinctual rooting is the preconception. The provision of the nipple provides the realization in the world of experience, and through time, with repeated experience, the preconception and realization combined to create the concept. Mental capacity builds upon previous experience as the environment and infant interact.
The first bodily experiences begin to build up the first memories, and external realities are progressively woven into the texture of phantasy. Before long, the child's phantasies are able to draw upon plastic images as well as sensations—visual, auditory, kinæsthetic, touch, taste, smell images, etc. And these plastic images and dramatic representations of phantasy are progressively elaborated along with articulated perceptions of the external world.[20]
With adequate care, the infant is able to tolerate increasing awareness of experience which is underlain by unconscious phantasy and leads to attainment of consecutive developmental achievements, "the positions" in Kleinian theory.
Projective identification
As a specific term, projective identification is introduced by Klein in “Notes on some schizoid mechanisms.”[21]
[Projection] helps the ego to overcome anxiety by ridding it of danger and badness. Introjection of the good object is also used by the ego as a defense against anxiety. . . .The processes of splitting off parts of the self and projecting them into objects are thus of vital importance for normal development as well as for abnormal object-relation. The effect of introjection on object relations is equally important. The introjection of the good object, first of all the mother’s breast, is a precondition for normal development . . . It comes to form a focal point in the ego and makes for cohesiveness of the ego. . . . I suggest for these processes the term ‘projective identification’.[21]: 6–9
Klein imagined this function as a defense which contributes to the normal development of the infant, including ego structure and the development of object relations. The introjection of the good breast provides a location where one can hide from persecution, an early step in developing a capacity to self-soothe.
Ogden[22] identifies four functions that projective identification may serve. As in the traditional Kleinian model, it serves as a defense. Projective identification serves as a mode of communication. It is a form of object relations, and “a pathway for psychological change.”[22]: 21 As a form of object relationship, projective identification is a way of relating with others who are not seen as entirely separate from the individual. Instead, this relating takes place “between the stage of the subjective object and that of true object relatedness”.[22]: 23
The paranoid-schizoid and depressive positions
The positions of Kleinian theory, underlain by unconscious phantasy, are stages in the normal development of ego and object relationships, each with its own characteristic defenses and organizational structure. The paranoid-schizoid and depressive positions occur in the pre-oedipal, oral phase of development.
In contrast to Fairbairn and later Guntrip,[23] Klein believed that both good and bad objects are introjected by the infant, the internalization of good objects being essential to the development of healthy ego function.[21]: 4 Klein conceptualized the depressive position as “the most mature form of psychological organization”, which continues to develop throughout the life span.[24]: 11
The depressive position occurs during the second quarter of the first year.[21]: 14 Prior to that the infant is in the paranoid-schizoid position, which is characterized by persecutory anxieties and the mechanisms of splitting, projection, introjection, and omnipotence—which includes idealizing and denial—to defend against these anxieties.[21]: 7 Depressive and paranoid-schizoid modes of experience continue to intermingle throughout the first few years of childhood.
Paranoid-schizoid position
The paranoid-schizoid position is characterized by part object relationships. Part objects are a function of splitting, which takes place in phantasy. At this developmental stage, experience can only be perceived as all good or all bad. As part objects, it is the function that is identified by the experiencing self, rather than whole and autonomous others. The hungry infant desires the good breast who feeds it. Should that breast appear, it is the good breast. If the breast does not appear, the hungry and now frustrated infant, in its distress, has destructive phantasies dominated by oral aggression towards the bad, hallucinated breast.[21]: 5
Klein notes that in splitting the object, the ego is also split.[21]: 6 The infant who phantasies destruction of the bad breast is not the same infant that takes in the good breast, at least not until obtaining the depressive position, at which point good and bad can be tolerated simultaneously in the same person and the capacity for remorse and reparation ensue.
The anxieties of the paranoid schizoid position are of a persecutory nature, fear of the ego's annihilation.[21]: 33 Splitting allows good to stay separate from bad. Projection is an attempt to eject the bad in order to control through omnipotent mastery. Splitting is never fully effective, according to Klein, as the ego tends towards integration.[21]: 34
Depressive position
Klein saw the depressive position as an important developmental milestone that continues to mature throughout the life span. The splitting and part object relations that characterize the earlier phase are succeeded by the capacity to perceive that the other who frustrates is also the one who gratifies. Schizoid defenses are still in evidence, but feelings of guilt, grief, and the desire for reparation gain dominance in the developing mind.
In the depressive position, the infant is able to experience others as whole, which radically alters object relationships from the earlier phase.[21]: 3 “Before the depressive position, a good object is not in any way the same thing as a bad object. It is only in the depressive position that polar qualities can be seen as different aspects of the same object.”[25]: 37 Increasing nearness of good and bad brings a corresponding integration of ego.
In a development which Grotstein terms the "primal split",[25]: 39 the infant becomes aware of separateness from the mother. This awareness allows guilt to arise in response to the infant's previous aggressive phantasies when bad was split from good. The mother's temporary absences allow for continuous restoration of her “as an image of representation” in the infant mind.[25]: 39 Symbolic thought may now arise, and can only emerge once access to the depressive position has been obtained. With the awareness of the primal split, a space is created in which the symbol, the symbolized, and the experiencing subject coexist. History, subjectivity, interiority, and empathy all become possible.[24]: 14
The anxieties characteristic of the depressive position shift from a fear of being destroyed to a fear of destroying others. In fact or phantasy, one now realizes the capacity to harm or drive away a person who one ambivalently loves. The defenses characteristic of the depressive position include the manic defenses, repression and reparation. The manic defenses are the same defenses evidenced in the paranoid-schizoid position, but now mobilized to protect the mind from depressive anxiety. As the depressive position brings about an increasing integration in the ego, earlier defenses change in character, becoming less intense and allowing for in increased awareness of psychic reality.[26]: 73
In working through depressive anxiety, projections are withdrawn, allowing the other more autonomy, reality, and a separate existence.[16]: 16 The infant, whose destructive phantasies were directed towards the bad mother who frustrated, now begins to realize that bad and good, frustrating and satiating, it is always the same mother. Unconscious guilt for destructive phantasies arises in response to the continuing love and attention provided by caretakers.
[As] fears of losing the loved one become active, a very important step is made in the development. These feelings of guilt and distress now enter as a new element into the emotion of love. They become an inherent part of love, and influence it profoundly both in quality and quantity.[27]: 65
From this developmental milestone come a capacity for sympathy, responsibility to and concern for others, and an ability to identify with the subjective experience of people one cares about.[27]: 65–66 With the withdrawal of the destructive projections, repression of the aggressive impulses takes place.[26]: 72–73 The child allows caretakers a more separate existence, which facilitates increasing differentiation of inner and outer reality. Omnipotence is lessened, which corresponds to a decrease in guilt and the fear of loss.[16]: 16
When all goes well, the developing child is able to comprehend that external others are autonomous people with their own needs and subjectivity.
Previously, extended absences of the object (the good breast, the mother) was experienced as persecutory, and, according to the theory of unconscious phantasy, the persecuted infant phantisizes destruction of the bad object. The good object who then arrives is not the object which did not arrive. Likewise, the infant who destroyed the bad object is not the infant who loves the good object.
In phantasy, the good internal mother can be psychically destroyed by the aggressive impulses. It is crucial that the real parental figures are around to demonstrate the continuity of their love. In this way, the child perceives that what happens to good objects in phantasy does not happen to them in reality. Psychic reality is allowed to evolve as a place separate from the literalness of the physical world.
Through repeated experience with good enough parenting, the internal image that the child has of external others, that is the child's internal object, is modified by experience and the image transforms, merging experiences of good and bad which becomes more similar to the real object (e.g. the mother, who can be both good and bad). In Freudian terms, the pleasure principle is modified by the reality principle.
Melanie Klein saw this surfacing from the depressive position as a prerequisite for social life. Moreover, she viewed the establishment of an inside and an outside world as the start of interpersonal relationships.
Klein argued that people who never succeed in working through the depressive position in their childhood will, as a result, continue to struggle with this problem in adult life. For example: the cause that a person may maintain suffering from intense guilt feelings over the death of a loved one, may be found in the unworked- through depressive position. The guilt is there because of a lack of differentiation between phantasy and reality. It also functions as a defense mechanism to defend the self against unbearable feelings of sadness and sorrow, and the internal object of the loved one against the unbearable rage of the self, which, it is feared, could destroy the internal object forever.
Further thinking regarding the positions
Wilfred Bion articulates the dynamic nature of the positions, a point emphasised by Thomas Ogden, and expanded by John Steiner in terms of '"The equilibrium between the paranoid-schizoid and the depressive positions"'.[28] Ogden and James Grotstein have continued to explore early infantile states of mind, and incorporating the work of Donald Meltzer, Ester Bick and others, postulate a position preceding the paranoid-schizoid. Grotstein, following Bion, also hypothesizes a transcendent position which emerges following attainment of the depressive position. This aspect of both Ogden and Grotstein's work remains controversial for many within classical object relations theory.
Death drive
Sigmund Freud developed the concept object relation to describe or emphasize that bodily drives satisfy their need through a medium, an object, on a specific focus. The central thesis in Melanie Klein's object relations theory was that objects play a decisive role in the development of a subject and can be either part-objects or whole-objects, i.e. a single organ (a mother's breast) or a whole person (a mother). Consequently, both a mother or just the mother's breast can be the focus of satisfaction for a drive. Furthermore, according to traditional psychoanalysis, there are at least two types of drives, the libido (mythical counterpart: Eros), and the death drive, mortido (mythical counterpart: Thanatos). Thus, the objects can be receivers of both love and hate, the affective effects of the libido and the death drive.
Ronald Fairbairn's Six Ego Positions
Fairbairn posited six ego positions or inner voices, or 3 pairs:[15]
- The Whole Ego relating to the Good Object, is the healthy inner child relating to the patient and nurturing inner parent. This is the part of the inner world that object relations therapists try to expand and grow.
- The Antilibidinal Ego relating to the Bad Object, is the depressed, angry or hopeless inner child relating to the rejecting or neglectful inner parent. Whenever someone speaks in a tantrum-like way they are speaking from the Antilibidinal Ego, and they are speaking to the Bad Object. Whenever someone is overly critical and harshly judgmental they are speaking from the Bad Object part of their personality, and are speaking to the Antilibidinal Ego (hopeless inner child).
- The Libidinal Ego relating to the Exciting Object, is the gullible and overly hopeful inner child relating to the exciting over-promising inner parent. Whenever a person goes back to their cheating or abusive spouse they are operating from their Libidinal Ego and relating to the Exciting Object in their inner worlds. Whenever they are in an addiction they are treating whatever they are addicted to as if it were an Exciting Object.
The Fairbairnian Object Relations therapist imagines that all interactions between the client and the therapist are occurring in the client's inner object relations world, in one of the three dyads. If the client thinks the therapist is wise and compassionate the therapist sees this as an interaction between the client's Libidinal Ego and Exciting Object. If the client is angry at the therapist for not meeting the client's needs, the therapist might see it as an interaction between the client's Antilibidinal Ego and the Bad Object. The therapist might ask the client if this particular interaction reminds the client of something from childhood.
The Fairbairnian Object Relations therapist also uses his/her own emotional reactions as therapeutic cues. If the therapist is feeling irritated at the client, or bored, he/she might interpret that as a re-enactment of the Antilibidinal Ego and the Bad Object, with the therapist cast in the role of Bad Object. If the therapist can patiently be an empathic therapist through the client's re-enactment, then the client has a new experience to incorporate into their inner object world, hopefully expanding their inner picture of their Good Object. Cure is seen as the client being able to receive from their inner Good Object often enough to have a more stable peaceful life.[15]
The Fairbairnian Object Relations Therapist also uses their mistakes in the therapy. If the therapist has absent mindedly made a mistake that hurts the client, the therapist admits the mistake, and empathizes with the client's pain, but instead of apologizing, the therapist asks: How did this mistake in therapy re-enact a childhood scene?
Numerous research studies have found that most all models of psychotherapy are equally helpful, the difference mainly being the quality of the individual therapist, not the theory the therapist subscribes to. Object Relations Theory attempts to explain this phenomenon via the theory of the Good Object. If a therapist can be patient and empathic, most clients improve their functioning in their world. The client carries with them a picture of the empathic therapist that helps them cope with the stressors of daily life, regardless of what theory of psychology they subscribe to.
Continuing developments in the theory
Attachment theory, researched by John Bowlby and others, has continued to deepen our understanding of early object relationships. While a different strain of psychoanalytic theory and research, the findings in attachment studies have continued to support the validity of the developmental progressions described in object relations. Recent decades in developmental psychological research, for example on the onset of a "theory of mind" in children, has suggested that the formation of the mental world is enabled by the infant-parent interpersonal interaction which was the main thesis of British object-relations tradition (e.g. Fairbairn, 1952).
While object relations theory grew out of psychoanalysis, it has been applied to the general fields of psychiatry and psychotherapy by such authors as N. Gregory Hamilton[29][30] and Glen O. Gabbard. In making object relations theory more useful as a general psychology N. Gregory Hamilton added the specific ego functions to Otto F. Kernberg's concept of object relations units.[31]
See also
Individuals:
Notes and references
- ^ a b Greenberg, Jay; Mitchell, Stephen (1983). Object Relations in Psychoanalytic Theory. Cambridge, MA: Harvard University Press. pp. 12. ISBN 0674629752.
- ^ a b Goldenberg, Herbert; Goldenberg, Irene (2008). Family Therapy: An Overview: An Overview. Belmont, CA: Thomson Higher Education. p. 160. ISBN 9780495097594.
- ^ Andersen, Margaret; Taylor, Howard (2008). Sociology: Understanding a Diverse Society, Updated. Belmont, CA: Thomson Wadsworth. p. 93. ISBN 9780495007425.
- ^ St. Clair, Michael (2000). Object Relations and Self Psychology: An Introduction (3rd ed.). Brooks/Cole Counseling, an imprint of Wadsworth, a division of Thomson Learning. p. 6. ISBN 978-0-534-36280-5.
An object is that to which a subject relates.
- ^ a b c d Greenberg, J. & Mitchell, S. (1983). Object Relations in Psychoanalytic Theory. Harvard University Press, Cambridge, Massachusetts, and London, England.
- ^ Ogden, T. (2005). This Art of Psychoanalysis: Dreaming undreamt dreams and interrupted cries. NY: Routledge. (p. 27).
- ^ Fairbairn, W.R.D. (1952). Psychoanalytic Studies of the Personality. London: Routledge and Kegan Paul, 1981.
- ^ Glen O. Gabbard, Long-Term Psychodynamic Psychotherapy (Washington, DC 2010) p. 12
- ^ Gomez, 1997 p. 12
- ^ Mitchell, Stephen A. (1997). Influence and Autonomy in Psychoanalysis. New York, NY: Routledge. p. 101. ISBN 9780881634495.
- ^ King, Pearl; Steiner, Riccardo, eds. (1992). The Freud-Klein Controversies 1941-45. London: Routledge. ASIN 0415082749.
- ^ Mills, Jon, ed. (2006). Other Banalities: Melanie Klein Revisited. London: Routledge.
- ^ Hughes, Judith M. (1990). Reshaping the Psychoanalytic Domain: The Work of Melanie Klein, W.R.D. Fairbairn, and D.W. Winnicott. University of California Press.
- ^ Ben Plotkin, Mariano (2001). Freud in the Pampas: The Emergence and Development of a Psychoanalytic Culture in Argentina. Stanford University Press. ISBN 9780804740609.
- ^ a b c Celani, David (2010). Fairbairn's Object Relations Theory in the Clinical Setting. Columbia University Press. ISBN 978-0231149075.
- ^ a b c d Segal, Hanna (1981). The work of Hanna Segal: A Kleinian approach to clinical practice. New York, NY: Jason Aronson. ISBN 978-0-87668-422-1.
- ^ Bion, W. (1962) "A theory of thinking". In Second thoughts: Selected papers on psycho-analysis (pp. 111–119). London: Karnac. 1967
- ^ Bion, W. (1977). Two papers: The grid and caesura. Karnac: London.
- ^ Ogden, T. (1990). The matrix of the mind: Object relations and the psychoanalytic dialogue. Lanham, MD: Aronson.
- ^ Isaacs, S. (1948). "The Nature and Function of Phantasy". International Journal of Psycho-Analysis, v. 29, pp. 73–98 . Retrieved December 17, 2007 from PEP Archive.
- ^ a b c d e f g h i j Klein, Mélanie (1946). "Notes on some schizoid mechanisms". Envy and gratitude and other works 1946-1963. Hogarth Press and the Institute of Psycho-Analysis (published 1975). ISBN 978-0-02-918440-0.
- ^ a b c Ogden, Thomas H. (1977). Projective Identification and Psychotherapeutic Technique. Lanham, MD: Jason Aronson. ISBN 978-0-87668-446-7.
- ^ Guntrip, H. (1975). Schizoid phenomena, object relations and the self. Madison, CT: International Universities Press. p. 21.
- ^ a b Ogden, Thomas H. (1989). The primitive edge of experience. Northvale, NJ: Jason Aronson. ISBN 978-0-87668-982-0..
- ^ a b c Grotstein, James S. (1981). Splitting and projective identification. New York, NY: Jason Aronson. ISBN 978-0-87668-348-4.
- ^ a b Klein, Mélanie (1952). "Some theoretical conclusions regarding the emotional life of the infant". Envy and gratitude and other works 1946-1963. Hogarth Press and the Institute of Psycho-Analysis (published 1975). ISBN 978-0-02-918440-0.
- ^ a b Klein, Mélanie; Riviere, Joan (1964). "Love, guilt, and reparation". Love, Hate, and Reparation. New York, NY: Norton. ISBN 978-0-393-00260-7.
- ^ John Steiner, in Robin Anderson ed., Clinical Lectures on Klein and Bion (London 1992) p. 46-58
- ^ http://ajp.psychiatryonline.org/article.aspx?articleid=166427 American Journal of Psychiatry article\
- ^ Hamilton, N. G.; Sacks, L. H.; Hamilton, C. A. (1994). "Object relations theory and pharmacopsychotherapy of anxiety disorders". American Journal of Psychotherapy. 48 (3): 380–391. doi:10.1176/appi.psychotherapy.1994.48.3.380. PMID 7992869.
- ^ Hamilton, N.G. (1996). The Self and the Ego in Psychotherapy. Jason Aronson ISBN 978-1568216591
Further reading
Books
- Fairbairn, W. R. D. (1952). An Object-Relations Theory of the Personality. New York: Basic Books.
- Gomez, L. (1997). An Introduction to Object Relations Theory. London: Free Association Press. ISBN 1-85343-347-0
- Masterson, James F. (1988). The Search for the Real Self. ISBN 0-02-920291-4
- Mitchell, S.A., & Black, M.J. (1995). Freud and beyond: A history of modern psycho analytic thought. Basic Books, New York. ISBN 978-0-465-01405-7