RT Journal T1 THe mechanism of thought, imagery and hallucination. JF American Journal of Diseases of Children JO American Journal of Diseases of Children YR 1939 FD July 1 VO 58 IS 1 SP 228 OP 228 DO 10.1001/archpedi.1939.01990070240022 UL http://dx.doi.org/10.1001/archpedi.1939.01990070240022 AB Dr. Rosett describes the thought processes (including imagery and hallucination) in terms of the anatomy of the central nervous system. The role of sensations and their relation to the physiologic functions of the various parts of the brain are stressed throughout. The point of view is objective and analytic.A chapter is devoted to emotions and the conscious state. The part played by the nerve impulses, the thalamus as a relay station of nervous impulses, the autonomic nervous system and the effect of epinephrine are described. Emphasis is placed on the control of the autonomic nervous system by the cerebral cortex. No mention is made of the inherent instinctive drives usually considered as the most important influence over emotional response. Similarly, the neural pathways and association systems involved in the will, in attention, in symbols and in imagery are described. The mechanics of the epileptic seizure and of sleep are