Abstract
The underlying premise of this chapter is that a major dysfunction of the autistic brain resides in neural mechanisms that elaborate social motivation and thereby social intent. Although substantive understanding of brain mechanisms that mediate social emotions remains meager, animal brain research on fundamental processes such as separation distress and rough-and-tumble play has now yielded enough knowledge that some provisional hypotheses concerning the etiology and treatment of autism can be generated. Basically, our psychopharmacological work has affirmed the special importance of brain opioid activity in the elaboration of various social behaviors and social emotions, and convergent lines of reasoning suggest that opioid receptor blockade should be effective in alleviating and/or reversing the progress of certain autistic symptoms. In addition to summarizing evidence pertinent to the opioid-excess hypothesis, we discuss the possibility that certain cognitive symptoms of autism, such as problems in language development, may secondarily reflect disruption of underlying social emotions that dictate the intensity of social intent in the developing organism.
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References
Akerly, M. S. (1974). The near-normal autistic adolescent. Journal of Autism and Childhood Schizophrenia, 4, 347–356.
Akil, H., & Mayer, D. J. (1972). Antagonism of stimulation-produced analygesia by p-CPA, a serotonin synthesis inhibitor. Brain Research, 44, 692–697.
August, G. J., Raz, N., & Baird, T. D. (1985). Brief report: Effects of fenfluramine on behavioral, cognitive, and affective disturbances in autistic children. Journal of Autism and Developmental Disorders, 15, 97–107.
Barchas, J. D., Akil, H., Elliott, G., Holman, B., & Watson, S. J. (1978). Behavioral neurochemistry: Neuroregulators and behavioral states. Science, 200, 964–973.
Barron, J., & Sandman, C.A. (1983). Relationship of sedative-hypnotic response to self-injurious behavior and stereotypy by mentally retarded clients. American Journal of Mental Deficiency, 88, 177–186.
Barron, J., & Sandman, C. A. (1985). Paradoxical excitment to sedative-hypnotics in mentally regarded clients. American Journal of Mental Deficiency, 90, 124–129.
Bartak, L., Rutter, M., & Cox, A. (1975). A comparative study of infantile autism and specific developmental receptive language disorder: I. The children. British Journal of Psychiatry, 126, 127–145.
Bates, E. (1979a). On the evolution and development of symbols. In E. Bates, T. Benigni, I. Bretherton, L. Camaioni, & V. Volterra (Eds.), The emergency of symbols: Cognition and communication in infancy. New York: Academic Press.
Bates, E. (1979b). The biology of symbols: Some concluding thoughts. In E. Bates, T. Benigni, I. Brtherton, L. Camaioni, & V. Volterra (Eds.), The emergence of symbols: Cognition and communication in infancy. New York: Academic Press.
Bates, E., Benigni, T., Bretherton, I., Camaioni, L., & Volterra, V. (1979). The emergence of symbols: Cognition and communication in infancy. New York: Academic Press.
Bates, E., Camaioni, L., & Volterra, V. (1975). The acquisition of performatives prior to speech. Merrill-Palmer Quarterly, 21, 205–226.
Bishop, P., Panksepp, J., & Sahley, T. L. (1980). Opiate effects on social comfort and imprinting. Society for Neuroscience Abstract, 6, 105.
Blackstock, E. (1978). Cerebral asymmetry and the development of early infantile autism. Journal of Autism and Childhood Schizophrenia, 8, 339–353.
Bortz, W. M., Angivin, P., Mefford, I. N., Boarder, M. R., Noyce, N., & Barchas, J. D. (1981). Catecholamines, dopamine, and endorphin levels during extreme exercise. New England Journal of Medicine, 305, 466–467.
Campbell, M., Cohen, I. L., & Anderson, L. T. (1981). Pharmacotherapy for autistic children: A summary of research. Canadian Journal of Psychiatry, 26, 265–273.
Campbell, M., Petti, T. A., Green, W. H., Cohen, I. L., Genieser, N. B., & David, R. (1980). Some physical parameters of young autistic children. Journal of the American Academy of Childhood Psychiatry, 19, 193–212.
Campbell, M., Small, A. M., Perry, R., Palij, M., Nobler, M., Polonsky, B., & Shore, H. (1985, July). Naltrexone in autistic children. Paper presented at the 17th Annual Meeting and Conference of the National Society of Children and Adults with Autism, Autism Research Symposium, Los Angeles, CA.
Champney, T. F., Sahley, T. L., & Sandman, C. A. (1976). Effects of neonatal cerebral ventricular injection of ACTH 4–9 and subsequent adult injections on learning in male and female albino rats. Pharmacology Biochemistry and Behavior, 5 (Suppl. 1, The Neuropeptides), 3–9.
Chernick, V., & Craig, R. J. (1982). Naloxone reverses neonatal depression caused by fetal asphyxia. Science, 216, 1252–1253.
Ciaranello, R. D., Vandenberg, S. R., & Anders, T. F. (1982). Intrinsic and extrinsic determinants of neuronal development: Relations to infantile autism. Journal of Autism and Developmental Disorders, 12, 115–145.
Clineschmidt, B. V., Zacchei, A. G., Totaro, J. A., Pflueger, A. B., McGuffin, J. C., & Wishonski, T. I. (1978). Fenfluramine and brain serotonin. Annuals of the New York Academy of Sciences, 305, 221–241.
Cohen, I. L., Campbell, M., & Posner, D. (1980). A study of haloperidol in young autistic children: A within subjects design using objective rating scales. Psychopharmacological Bulletin, 16(3), 63–65.
Coleman, M. (1976). The autistic syndromes. New York: Elsevier.
Courchesne, E., Lincoln, A. J., Kilman, B. A., & Galambos, R. (1985). Event-related brain potential correlates of the processing of novel visual and auditory information. Journal of Autism and Developmental Disorders, 15, 55–76.
Curcio, F. (1978). Sensorimotor functioning and communication in mute autistic children. Journal of Autism and Childhood Schizophrenia, 8, 281–292.
Damasio, A., & Maurer, R. (1978). A neurological model for childhood autism. Archives of Neurology, 35, 777–786.
DeMyer, M. K., Hingtgen, J. N., & Jackson, R. K. (1981). Infantile autism reviewed: A decade of research. Schizophrenia Bulletin, 7, 388–451.
Des Lauriers, A. M., & Carlson, C. F. (1969). Your child is asleep: Early infantile autism. Homewood, IL: Dorsey Press.
Dores, R. B., Akil, H., & Watson, S. J. (1984). Strategies for studying opioid peptide regulation at the gene, measure and protein levels. Peptides5 (Suppl. 1), 9–17.
Duchan, J. F., & Palermo, J. (1982). How autistic children view the world. Topics in language disorders: Communication problems of autistic children: The role of context, 3(1), 10–15.
Fein, D., Humes, M., Kaplan, E., Lucci, D., & Waterhouse, L. (1984). The question of left hemisphere dysfunction in infantile autism. Psychological Bulletin, 95, 258–281.
Fein, D., Skoff, B., & Mirsky, A. F. (1981). Clinical correlates of brainstem dysfunction in autistic children. Journal of Autism and Developmental Disorders, 11, 303–315.
Freeman, B. J., Frankel, F., & Ritvo, E. R. (1976). The effects of response-contingent vestibular stimulation on the behavior of autistic and related children. Journal of Autism and Childhood Schizophrenia, 6, 353.
Gautray, J. P., Joliet, A., Viehl, J. P., & Guillemin, R. (1977). Presence of immunoassayable B-endorphin on human amniotic fluid: Elevation in cases of fetal distress. American Journal of Obstetrics and Gynecology, 129, 211–212.
Geller, E., Ritvo, E., Freeman, B. J., & Yuwiler, A. (1982). Preliminary observations on the effect of fenfluramine on blood serotonin and symptoms in three autistic boys. New England Journal of Medicine, 307, 165–169.
Gillberg, C., Terenius, L., & Lönnerholm, G. (1985). Endorphin activity in childhood psychosis. Archives of General Psychiatry, 42, 780–783.
Goodman, R. R., Fricker, L. D., & Snyder, S. H. (1983). Enkephalins. In D. T. Krieger, M. J. Brownstein & J. B. Martin (Eds.), Brain peptides (pp. 827–849). New York: Wiley-Interscience.
Gray, J. A. (1982). The neuropsychology of anxiety: An enquiry into the functions of the septo-hippocampal system. Oxford: Oxford University Press.
Halliday, M. (1975). Learning how to mean. In E. Lenneberg & E. Lenneberg (Eds.), Foundations of language development: A multidisciplinary approach. New York: Academic Press.
Hauser, S., DeLong, G., & Rosman, N. (1975). Pneumographie findings in the infantile autism syndrome: A correlation with temporal lobe disease. Brain, 98, 667–688.
Herman, B. H., Hammock, M. K., Egan, J., Feinstein, C., Chatoor, I., Boeckx, R., Zelnick, N., Jack, R., & Rosenquist, J. (1985). Naltrexone induces dose-dependent decreases in self-injurious behavior. Neuroscience Abstracts, 11, 468.
Herman, B. H., & Panksepp, J. (1978). Effects of morphine and naloxone on separation distress and approach attachment: Evidence for opiate medication of social affect. Pharmacology Biochemistry and Behavior, 9, 213–220.
Hermelin, B. (1976). Coding and the sense modality. In L. Wing (Ed.), Early childhood autism: Clinical educational, and social aspects (pp. 135–168). New York: Pergamon Press.
Hermelin, B., & O’Connor, N. (1968). Measures of the occipital alpha rhythm in normal, subnormal, and autistic children. British Journal of Psychiatry, 114, 603–610.
Hetzler, B. E., & Griffin, J. L. (1981). Infantile autism and the temporal lobe of the brain. Journal of Autism and Developmental Disorders, 11, 317–330.
Hutt, C., Hutt, S., Lee, D., & Ounsted, C. (1964). Arousal and childhood autism. Nature, 204, 908.
Jessell, T. M. (1983). Nociception. In D. T. Krieger, M. J. Brownstein, & J. B. Martin (Eds.), Brain peptides (pp. 315–332). New York: Wiley-lnterscience.
Kalat, J. W. (1978). Letter to the editor: Speculations on similarities between autism and opiate addiction. Journal of Autism and Childhood Schizophrenia, 8, 477–479.
Kanner, L. (1943). Autistic disturbances of affective content. Nervous Child, 2, 217–250.
Kern, L., Koegel, R. L., & Dunlap, G. (1984). The influence of vigorous versus mild exercise on autistic stereotyped behaviors. Journal of Autism and Developmental Disorders, 14, 57–67.
Kern, L., Koegel, R. L., Dyer, K., Blew, P. A., & Fenton, L. R. (1982). The effects of physical exercise on self-stimulation and appropriate responding in autistic children. Journal of Autism and Developmental Disorders, 12, 399–419.
Khachaturian, H., Lewis, M. E., Schafer, M. K. M., & Watson, S. J. (1985). Anatomy of the CNS opioid systems. Trends in Neurosciences, 8, 111–119.
Koegel, R. L., Egel, A. L., & Dunlap, G. (1980). Learning characteristics of autistic children. In W. Sailor, B. Wilcox, & L. Brown (Eds.), Methods of instruction with severely handicapped students. Baltimore: Brookes.
Koob, G., LeMoal, M., & Bloom, F. E. (1984). The role of endorphins in neurobiology, behavior and psychiatric disorders. In C. B. Nemeroff & A. J. Dunn (Eds.), Peptides, hormones and behavior. Jamaica: NY: Spectrum.
Kuhar, M. J., Pert, C. B., & Snyder, S. H. (1973). Regional distribution of opiate receptor binding in monkey and human brain. Nature, 245, 447–450.
Lee, R. L., Sewell, R. D., & Spencer, P. S. (1979). Antinociceptive activity of D-ala2-D-leu5-enkephalin (BW180C) in the rat after modification to central 5-hydroxytryptamine function. Neuropharmacology, 18, 711–717.
Lelord, G., Muh, J. P., Barthelemy, C., Martineau, Garreau B., & Callaway, E. (1981). Effects of pyridoxine and magnesium on autistic symptoms—Initial observations. Journal of Autism and Developmental Disorders, 11, 219–230.
Levin, E. R., Sharp, B., & Carlson, H. E. (1984). Studies of naloxone-induced secretion of B-endorphin immunoactivity in dogs. Life Sciences, 35, 1535–1545.
Links, P. S., Stockwell, M., Abichandani, F., & Simeon, J. (1980). Minor physical anomalies in childhood autism. Part I. Their relationship to pre- and perinatal complications. Journal of Autism and Developmental Disorders, 10, 273–286.
MacCulloch, M., & Williams, C. (1971). On the nature of infantile autism. Acta Psychiatrica Scandinavica, 47, 295–314.
Malick, J. B., & Bell, R. M. S. (1982). Endorphins: Chemistry, physiology, pharmacology and clinical relevance. New York: Marcel Dekker.
Maurer, R. G., & Damasio, A. R. (1982). Childhood autism from the point of behavioral neurology. Journal of Autism and Developmental Disorders, 12, 195–205.
Mueser, K. T., & Dysken, M. W. (1983). Narcotic antagonists in schizophrenia. Schizophrenia Bulletin, 9, 213–225.
Najam, N. (1980). A study of the effects of early postnatal exposure to opiate agonists and antagonists on motor and social behaviors of the young rat. Unpublished doctoral dissertation, Bowling Green State University.
Najam, N., & Panksepp, J. (in press). Effect of chronic neonatal morphine and naloxone on sensorimotor and social development in young rats. Pharmacology, Biochemistry and Behavior.
Newby-Schmidt, M. D., & Norton, S. (1981). Development of opiate tolerance in the chick embryo. Pharmacology, Biochemistry and Behavior, 15, 773–778.
Ornitz, E. (1974). The modulation of sensory input and motor output in autistic children. Journal of Autism and Childhood Schizophrenia, 4, 197–215.
Ornitz, E., Guthrie, D., & Farley, A. (1978). The early symptoms of childhood autism. In G. Serban (Ed.), Cognitive defects in the development of mental illness. New York: Brunner/Mazel.
Ornitz, E., & Ritvo, E. (1968). Perceptual inconstancy in the syndrome of early infantile autism and its variants. Archives of General Psychiatry, 18, 76–98.
Panksepp, J. (1979). A neurochemical theory of autism. Trends in Neuroscience, 2, 174–177.
Panksepp, J. (1981a). Brain opioids—A neurochemical substrate for narcotic and social dependence. In S. J. Cooper (Ed.), Theory in psychopharmacology (Vol. 1). London: Academic Press.
Panksepp, J. (1981b). Hypothalamic integration of behavior. In Handbook of the hypothalamus, Vol. III-Part B, Behavioral studies of the hypothalamus. New York: Marcel Dekker.
Panksepp, J. (1982). Toward a general psychobiological theory of emotions. Behavioral and Brain Sciences, 5(3). New York: Cambridge University Press.
Panksepp, J. (1986). The psychobiology of prosocial behaviors: Separation distress, play and altruism. In C. Zahn-Waxier (Ed.), Social and biological origins of altruism and aggression. New York: Cambridge University Press.
Panksepp, J., Bean, J. J., Bishop, P., Vilberg, T., & Sahley, T. L. (1980). Opioid blockade and social comfort in chicks. Pharmacology, Biochemistry and Behavior, 13, 673–683.
Panksepp, J., Conner, R., Forster, P. K., Bishop, P., & Scott, J. P. (1983). Opioid effects on social behavior of kennel dogs. Applied Animal Ethology, 10, 63–74.
Panksepp, J., & DeEskinazi, F. G. (1980). Opiates and homing. Journal of Comparative and Physiological Psychology, 94, 650–663.
Panksepp, J., Herman, B., & Vilberg, T. (1978). An opiate excess model of autism. Neuroscience Abstract, 4, 500.
Panksepp, J., Herman, B., Vilberg, T., Bishop, P., & DeEskinazi, F. G. (1980). Endogenous opioids and social behavior. Neuroscience and Biobehavioral Reviews, 4, 473–487.
Panksepp, J., Meeker, R., & Bean, N. J. (1980). The neurochemical control of crying. Pharmacology, Biochemistry and Behavior, 12, 437–443.
Panksepp, J., Najam, N., & Soares, F. (1979). Morphine reduces social cohesion in rats. Pharmacology, Biochemistry and Behavior, 11, 131–134.
Panksepp, J., Siviy, S. M., & Normansell, L. A. (1985). Brain opioids and social emotions. In M. Reite & T. Fields (Eds.), The psychobiology of attachment. New York: Academic Press.
Panksepp, J., Vilberg, T., Bean, N. J., Coy, D. H., & Kastin, A. J. (1978). Reductions of distress vocalizations in chicks by opiate-like peptides. Brain Research Bulletin, 3, 663–667.
Picker, M., Poling, A., & Parker, A. (1979). A review of children’s self-injurious behavior. Psychological Record, 29, 435–452.
Piggott, L. R. (1979). Overview of selected basic research in autism. Journal of Autism and Developmental Disorders, 9, 199–218.
Plonsky, M., & Freeman, P. R. (1982). The effects of methadone on the social behavior and activity of the rat. Pharmacology, Biochemistry and Behavior, 16, 569–571.
Prizant, B. M. (1982). Gestalt language and gestalt processing in autism. Topics in Language Disorders, 3, 16–23.
Richardson, J. S., & Zaleski, W. A. (1983). Naloxone and self-mutilation. Biological Psychiatry, 18, 99–101.
Rimland, B. (1964). Infantile autism. New York: Appleton-Century-Crofts.
Rimland, B. (1978). Inside the mind of an autistic savant. Psychology Today, 12, 68–80.
Rimland, B., Callaway, E., & Dreyfus, P. (1978). The effects of high doses of vitamin B6 of autistic children: A double-blind crossover study. American Journal of Psychiatry, 135, 472–475.
Ritvo, E. O., Freeman, B. J., Geller, E., & Yuwiler, A. (1983). Effects of fenfluramine on 14 autistic outpatients. Journal of the American Academy of Child Psychiatry, 17, 565–576.
Ritvo, E. R., Ornitz, E. M, Eviatar, A., Markham, C. H., Crown, M. B., & Mason, A. (1969). Decreased postrotary nystagmus in early infantile autism. Neurology, 19, 653.
Ritvo, E. R., Rabin, K., Yuwiler, A., Freeman, B. J., & Geller, E. (1978). Biochemical and hematologic studies: A critical review. In M. Rutter & E. Schopler (Eds.), Autism: A reappraisal of concepts and treatment (pp. 163–183). New York: Plenum Press.
Ritvo, E. R., Yuwiler, A., Geller, E., Ornitz, E. M., Saeger, K., & Plotkin, S. (1970). Increased blood serotonin and platelets in early infantile autism. Archives of General Psychiatry, 23, 566–572.
Rosenblum, S. M., Arick, J. R., Krug, D. A., Stubbs, E. G., Young, N. B., & Pelson, R. O. (1980). Auditory brainstem evoked responses in autistic children. Journal of Autism and Developmental Disorders, 10, 215–225.
Rossi, J., Sahley, T. L., & Panksepp, J. (1983). The role of brain norepinephrine in Clonidine suppression of isolation-induced distress in the domestic chick. Psychopharmacology, 79, 338–342.
Rutter, M. (1968). Concepts of autism: A review of research. Journal of Child Psychology and Psychiatry, 9, 1–25.
Rutter, M. (1978). Diagnosis and definition of childhood autism. Journal of Autism and Childhood Schizophrenia, 8, 139–161.
Rutter, M., & Schopler, E. (Eds.). (1978). Autism: A reappraisal of concepts and treatment, New York: Plenum Press.
Sahley, T. L., & Berntson, G. G. (1979). Antinociceptive effects of central and systemic administrations of nicotine in the rat. Psychopharmacology, 65, 279–283.
Sahley, T. L., Panksepp, J., & Zolovick, A. J. (1981). Cholinergic modulation of separation distress in the domestic chick. European Journal of Pharmacology, 72, 261–264.
Samanin, R., Ghezzi, D., Mauron, C., & Valzelli, L. (1973). Effect of midbrain raphe lesion on the antinociceptive action of morphine and other analgesics in rats. Psychopharmacologia (Berlin), 33, 365–368.
Sandman, C. A., Data, P. C., Barron, J., Hoehler, F. K., Williams, C., & Swanson, J. M. (1983). Naloxone attenuates self-abusive behavior in developmentally disabled clients. Applied Research in Mental Retardation, 4, 5–11.
Sandman, C. A., & Kastin, A. J. (1981). The influence of fragments of the LPH chains on learning, memory, and attention in animals and man. Pharmacological Therapy, 13, 39–60.
Sandman, C. A., McGivern, R. F., Berka, C., Walker, J. M., Coy, D. H., & Kastin, A. J. (1979). Neonatal administration of B-endorphine produces “chronic” insensitivity to thermal stimuli. Life Sciences, 25, 1755–1760.
Schopler, E., & Mesibov, G. B. (Eds.). (1985). Communication problems in autism. New York: Plenum Press.
Schuler, A. L. (1980). Aspects of communication. In W. Fay & A. Schuler, Emerging language in autistic children (pp. 87–113). Baltimore: University Park Press.
Scott, J. P. (1974). Effects of psychotropic drugs on separation distress in dogs. Neuropsychopharmacology, Proceedings of the IX Congress of the CIN P. Paris: Excerpta Medica Amsterdam.
Simon, N. (1975). Echolalic speech in childhood autism: Considerations of possible underlying loci of brain damage. Archives of General Psychiatry, 32, 1439–1446.
Sohmer, H., & Student, M. (1978). Auditory nerve and brain-stem evoked responses in normal, autistic, minimal brain dysfunction and psycho-motor retarded children. Electroencephalography and Clinical Neurophysiology, 44, 380–388.
Student, M., & Sohmer, H. (1978). Evidence from auditory nerve and brainstem evoked responses for an organic brain lesion in childhood with autistic traits. Journal of Autism and Childhood Schizophrenia, 8, 13–20.
Tanguay, P. E., Edwards, R. M., Buchwald, J., Schwafel, J., & Allen, V. (1982). Auditory brainstem evoked responses in autistic children. Archives of General Psychiatry, 39, 174–180.
Todd, R. D., & Ciaranello, R. D. (1985). Demonstration of inter- and intra species differences in serotonin binding sites by antibodies from autistic children. Proceedings of the National Academy of Sciences, U.S.A., 82, 612–616.
Verebey, K. (Ed.). (1982). Opioids in mental illness: Theories, clinical observations, and treatment possibilities. Annals of the New York Academy of Sciences, 398.
Vilberg, T. R., Panksepp, J., Kastin, A. J., & Coy, D. C. (1984). The pharmacology of endorphin modulation of chick distress vocalization. Peptides, 5, 823–827.
Vygotsky, T. (1962). Thought and language, Cambridge, MA: MIT Press.
Wardlaw, S. L., Stark, R. I., Daniel, S., & Frantz, A. F. (1981). Effects of hypoxia on B-lipotropin release in fetal, newborn and maternal sheep. Endocrinology, 108, 1710–1715.
Watson, S. J., Akil, H., Sullivan, S. O., & Barchas, J. D. (1977). Immunocytochemical localization of methionine enkephalin: Preliminary observations. Life Sciences, 21, 733–738.
Watson, S. J., Albala, A. A., Berger, P., & Akil, H. (1983). Peptides and psychiatry. In D. T. Krieger, M. J. Brownstein, & J. B. Martin (Eds.), Brain peptides. New York: Wiley-Interscience
Watson, S. J., Berger, P. A., Akil, H., Mills, M. J., & Barchas, J. P. (1978). Effect of naloxone on schizophrenia: Reduction in hallucinations in a subpopulation of subjects. Science, 201, 73–75.
Wei, E., & Loh, H. (1976). Physical dependence of opiate-like peptides. Science, 193, 1242–1263.
Weizman, R., Weizman, A., Tyano, S., Szekely, G., Weissman, B. A., & Same, Y. (1984). Humoral-endorphin blood levels in autistic schizophrenic and healthy subjects. Psychopharmacology, 82, 368–370.
Werry, J. S. (1972). Childhood psychosis. In H. Quay & J. Werry (Eds.), Psychopathological disorders of childhood. New York: Wiley.
Wetherby, A. M. (1984). Possible neurological breakdown in autistic children. Topics in Language Disorders, 4 (Suppl. 32), 19–33.
Wetherby, A. M., Koegel, R. L., & Mendel, M. (1981). Central auditory nervous system dysfunction in echolalic autistic individuals. Journal of Speech and Hearing Research, 24, 420–429.
Wetherby, A. M., & Pruning, C. A. (1984). Communicative, cognitive and social development in autistic children. Journal of Speech and Hearing Research, 27, 364–377.
Wollner, S. G. (1983). Communicating intentions: How well do language-impaired children do? Topics in Language Disorders: Pragmatics in Language Disordered Children, 4(1), 1–14.
Zagon, I. S., & McLaughlin, P. J. (1978). Perinatal methadone exposure and its influence on the behavioral ontogeny of rats. Pharmacology, Biochemistry and Behavior, 9, 665.
Zagon, I. S., & McLaughlin, P. J. (1984). Naltrexone modulates body and brain development in rats: A role for endogenous opioid systems in growth. Life Sciences, 35, 2057–2064.
Zagon, I. S., McLaughlin, P. J., Weaver, D. J., & Zagon, E. (1982). Opiate endorphins and the developing organism: A comprehensive bibliography. Neuroscience and Biobehavioral Reviews, 6.
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Panksepp, J., Sahley, T.L. (1987). Possible Brain Opioid Involvement in Disrupted Social Intent and Language Development of Autism. In: Schopler, E., Mesibov, G.B. (eds) Neurobiological Issues in Autism. Current Issues in Autism. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-1992-2_19
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