Schizotaxia revisited.

A conjectured neural integrative defect (schizotaxia), due to a dominant schizogene completely penetrant for a parametric aberration in synaptic signal selectivity (hypokrisia), gives rise under ordinary social learning regimens to schizotypy, a personality showing ambivalence, aversive drift, dereism, autism, and cognitive slippage. Given unfavorable polygenic potentiators (eg, introversion, hypohedonia, and anxiety) and adverse life experiences (eg, childhood trauma or adult misfortune), around 10% develop schizophrenia. That schizophrenia is basically a neurologic disorder does not contradict whatever is known about its psychodynamics, nor preclude efficacy for psychotherapy or other psychosocial interventions. Research should concentrate on soft neurology and psychophysiology as indicators, being closer in the causal chain to the schizogene than psychometric, social, or high-level cognitive processes. Taxometric statistics are appropriate to testing a major locus model not simplistically formulated.

[1]  L. Siever,et al.  The search for a schizotype. Crossing the border again. , 1983, Archives of general psychiatry.

[2]  B. Fish Biologic antecedents of psychosis in children. , 1975, Research publications - Association for Research in Nervous and Mental Disease.

[3]  Robert R. Golden,et al.  Detection Of Biological Sex: An Empirical Test Of Cluster Methods. , 1980, Multivariate behavioral research.

[4]  P. Meehl,et al.  Detection of the schizoid taxon with MMPI indicators. , 1979, Journal of abnormal psychology.

[5]  G. Daniels,et al.  Changing concepts of psychoanalytic medicine : proceedings of the decennial celebration of the Columbia University Psychoanalytic Clinic, March 19 and 20, 1955 , 1956 .

[6]  P. Meehl THEORY AND PRACTICE: REFLECTIONS OF AN ACADEMIC CLINICIAN 1 , 1987 .

[7]  B. Maher,et al.  Disturbed voluntary motor activity in schizophrenic disorder , 1982, Psychological Medicine.

[8]  K. Nuechterlein,et al.  Information processing and attentional functioning in the developmental course of schizophrenic disorders. , 1984, Schizophrenia bulletin.

[9]  Paul E. Meehl,et al.  Diagnostic taxa as open concepts: Metatheoretical and statistical questions about reliability and construct validity in the grand strategy of nosological revision. , 1986 .

[10]  A. Mcghie,et al.  Disorders of attention and perception in early schizophrenia. , 1961, The British journal of medical psychology.

[11]  L. Cronbach,et al.  Construct validity in psychological tests. , 1955, Psychological bulletin.

[12]  A. Rosanoff,et al.  The etiology of so-called schizophrenic psychoses, with special reference to their occurrence in twins. , 1934 .

[13]  E. Bleuler,et al.  Textbook of Psychiatry , 1907, Buffalo Medical Journal.

[14]  P. Meehl,et al.  Detecting Latent Clinical Taxa, VIII: A Preliminary Study in the Detection of the Schizoid Taxon Using MMPI Items as Indicators , 1974 .

[15]  Paul E. Meehl,et al.  Specific Etiology and Other Forms of Strong Influence: Some Quantitative Meanings , 1977 .

[16]  Richard J. Haier,et al.  Schizophrenia: The epigenetic puzzle Cambridge University Press, Cambridge (1982). 258 pp. by Irving I. Gottesman and James Shields , 1982, Psychiatry Research.

[17]  R. Buchanan,et al.  Significance and meaning of neurological signs in schizophrenia. , 1988, The American journal of psychiatry.

[18]  M. Manosevitz,et al.  Behavioral genetics : method and research , 1969 .

[19]  P. Meehl Schizotaxia, Schizotypy, Schizophrenia , 1962 .

[20]  N L Segal,et al.  Personality similarity in twins reared apart and together. , 1988, Journal of personality and social psychology.

[21]  Detecting Latent Clinical Taxa, VII: Maximum Likelihood Solution and Empirical and Artificial Data Trials of the Multi-indicator Multi-taxonomic Class Normal Theory , 1974 .

[22]  T. Oltmanns,et al.  The need to relate cognitive deficits to specific behavioral referents of schizophrenia. , 1985, Schizophrenia bulletin.

[23]  B. Fish Neurobiologic antecedents of schizophrenia in children. Evidence for an inherited, congenital neurointegrative defect. , 1977, Archives of general psychiatry.

[24]  A. Caracciolo,et al.  Reduction-Sentences and Open Concepts , 1955 .

[25]  Paul E. Meehl,et al.  Specific genetic etiology, psychodynamics, and therapeutic nihilism. , 1972 .

[26]  P. Meehl Theoretical risks and tabular asterisks: Sir Karl, Sir Ronald, and the slow progress of soft psychology. , 1978 .

[27]  S. Radó THE CONTRIBUTION OF PSYCHOANALYSIS TO THE MEDICAL STUDY OF BEHAVIOR. The Freud Centenary Address , 1956, Journal of Nervous and Mental Disease.

[28]  P. Hoch,et al.  Pseudoneurotic forms of schizophrenia , 1949, The Psychiatric quarterly.

[29]  J. Kroll,et al.  Borderline Personality Disorder: Construct Validity of the Concept , 1981 .

[30]  H. Berenbaum,et al.  Formal thought disorder in schizophrenics and their twins. , 1985, Journal of abnormal psychology.

[31]  N. Blackman,et al.  VESTIBULAR REACTIVITY IN SCHIZOPHRENIA , 1940 .

[32]  F. J. Kallmann The genetic theory of schizophrenia; an analysis of 691 schizophrenic twin index families. , 1946, The American journal of psychiatry.

[33]  D. Rao,et al.  The transmission of schizophrenia under a multifactorial threshold model. , 1983, American journal of human genetics.

[34]  T. Oltmanns,et al.  Matched tasks for measuring single-word, referent communication: the performance of patients with schizophrenic and affective disorders. , 1981, Journal of abnormal psychology.

[35]  Robert Plomin,et al.  Development, genetics, and psychology , 1986 .

[36]  P. Meehl,et al.  Testing a single dominant gene theory without an accepted criterion variable , 1978, Annals of human genetics.

[37]  M. A. Sherman,et al.  POSTURAL REACTIONS TO VESTIBULAR STIMULATION IN SCHIZOPHRENIC AND NORMAL SUBJECTS , 1942 .

[38]  L. Heston Psychiatric Disorders in Foster Home Reared Children of Schizophrenic Mothers , 1966, British Journal of Psychiatry.

[39]  N. Blackman,et al.  PARADOXICAL VESTIBULAR REACTIONS IN SCHIZOPHRENIA UNDER THE INFLUENCE OF ALCOHOL, OF HYPERPNEA AND CO2 INHALATION , 1941 .

[40]  B. Fish The study of motor development in infancy and its relationship to psychological functioning. , 1961, American Journal of Psychiatry.

[41]  L. Heston The genetics of schizophrenic and schizoid disease. , 1970, Science.

[42]  D. Levy,et al.  A single dominant gene can account for eye tracking dysfunctions and schizophrenia in offspring of discordant twins. , 1988, Archives of general psychiatry.

[43]  D. Levy,et al.  Vestibular dysfunction and psychopathology. , 1983, Schizophrenia bulletin.

[44]  W. Iacono Eye movement abnormalities in schizophrenic and affective disorders. , 1988 .

[45]  E. Rodnick,et al.  EFFECT OF ROTATION ON POSTURAL STEADINESS IN NORMAL AND IN SCHIZOPHRENIC SUBJECTS , 1942 .

[46]  H. H. Pennes,et al.  The course and outcome of pseudoneurotic schizophrenia. , 1962, The American journal of psychiatry.

[47]  D. O’Rourke,et al.  Refutation of the general single-locus model for the etiology of schizophrenia. , 1982, American journal of human genetics.

[48]  R. Freedman,et al.  Candidate for inherited neurobiological dysfunction in schizophrenia , 1987, Somatic cell and molecular genetics.

[49]  John L. Fuller,et al.  Foundations of behavior genetics , 1978 .

[50]  Arthur Falek,et al.  Schizophrenia and genetics: A twin study vantage point. , 1976 .

[51]  P. Meehl Hedonic capacity: some conjectures. , 1975, Bulletin of the Menninger Clinic.

[52]  Neal E. Miller,et al.  Personality and Psychotherapy , 1951 .

[53]  J. Knott The organization of behavior: A neuropsychological theory , 1951 .

[54]  C. Allen The Biology of Schizophrenia , 1947, Nature.

[55]  R. Knight Converging models of cognitive deficit in schizophrenia. , 1984, Nebraska Symposium on Motivation. Nebraska Symposium on Motivation.