I: Joint Meeting of the Pavlovian Society and the Society of Biological Psychiatry.- 1. Ivan Petrovich Pavlov—Presidential Address.- 2. Pavlovianism and Clinical Psychiatry.- 3. The Traditional and the New in Pavlov’s Theory of “Higher Nervous Activity.”.- 4. Salivary Conditional Reflexes in Man.- 5. The Conditional Psychogalvanic Reflex: Its Contribution to Psychiatric Diagnosis.- 6. Effects of Muscular Exertion and Verbal Stimuli on Heart Rate and Blood Pressure in the Human.- 7. Awareness of Stimulus Relationships and Physiological Generality of Response in Autonomic Discrimination.- 8. Application of Conditioning Procedures in the Study of Aging.- 9. Early Trauma as Revealed by Performance during Initial Conditioning.- II: Symposium on Ethology.- 10. The Fixed Action Pattern: Empirical Properties and Theoretical Implications.- 11. Ethology and Psychology.- 12. Ethological Concepts and Human Development.- III: Drugs and Somatic Approaches in Psychiatry.- 13. Psychotropic Drugs and Experimental.- 14. On a Proposed Theory for the Mechanism of Action of Serotonin in Brain.- 15. The Relationship of Parkinsonism Produced by Drugs to Psychotic Reactions.- 16. Some Acute and Chronic Biochemical Responses to Electroconvulsive Therapy.- 17. Treatment of Autistic Schizophrenic Children with LSD-25 and UML-491.- 18. Children Born to Mothers Maintained on Pharmacotherapy during Pregnancy and Postpartum.- IV: Clinical Studies.- 19. The Differentiation of Psychiatric Patients by EEG Changes after Sodium Pentothal.- 20. Porphyric Psychosis and Chelation Therapy.- 21. Psychophysiological Patterns in Chronic Schizophrenia.- 22. Affective Change in Thyrotoxicosis and Experimental Hypermetabolism.- V: Psychopharmacologic Research.- 23. Metabolic Effects of Psychoactive Drugs.-24. Interaction of Monoamine Oxidase Inhibitors with Imipramine and Similar Drugs.- 25. Correlation of the Cerebral Biochemical and Functional Effects of Monoamine Oxidase Inhibitor Antidepressants.- 26. Studies on Mescaline XII: Effects of Prior Administration of Various Psychotropic Drugs.- 27. Effects and Interactions of Imipramine, Chlorpromazine, Reserpine and Amphetamine on Self-Stimulation: Possible Neurophysiological Basis of Depression.- VI: Miscellaneous Studies.- 28. Neural Correlates of Psychophysiological Developments in the Young Organism.- 29. Studies of Plasma Protein Factors That May Be Involved in Psychoses.- 30. Behavioral Adaptations after Parietal Cortex Ablation in the Neonate Macaque.- 31. Disordered Perception of Simultaneous Stimulation of Face and Hand: A Review and Theory.- Membership Roster.- Author Index.