INDEX 



701 



Neurones — iwiiii. 



autoactive, 358 



bombardment, continuous, effects on 

 synaptic organization, 375-92 



contacts, 311-16 



functional specificity. 319 



nutrition, 310 

 Neurophysiology, histological bases, 309-34 

 Neurosis, humoral factors in development, 



295, 306 

 Neurosomes, 319 



Operant-behaviour analysis, 172 



Optic chiasma, section, effect on visual 



gnosis, 482 

 Orientating reaction, habituation, 463, 473 

 Orientation reflex, 243, 244, 245, 248, 250 



inhibition, 250 

 Orienting-investigatory reaction, 196 

 Orgs, 21 



Palaeocortical systems, interference and 



learning in, 153-87 

 Parasynapses, 326 

 Pavlov on evolution of cerebral function, 3, 



9-1^ 



Pecking reaction in the towl, 65 



Perikaryon, 326 



Personality, 14 



Phenobarbital, effect on fixation of experi- 

 ence, 29 



Photic stimulation, cortical response, 425 

 stimulus, significance on evoked responses 

 in man, 603-23 



Plastic change, location, 651 

 phenomena, functions, 413-31 



Polecat, killing technique, 59 



Post-activation, facilitation, as factor in 

 establishment of conditioned reflexes, 



353-73 

 Postcruciate gyrus, electrical stimulation, 137 

 Potentiation, post-tetanic, 353-73 

 Prefrontal lobes, relation to recent memory, 



123 

 Prey killing, 59 

 Purkinje neurones, 329 

 Pyriform cortex, effect of stimulation. 300 



Rats, retrieval of young in. 53. 58, 59 

 Recall rei,.'"ioii to deep torchrain structures, 



28 

 Reflex action, mechanism, 189 

 Reflexes, conditioned, 3, 10 



acceptor apparatus, 203 



afferent synthesis, 197, 198, 202 



alimentary, 403, 404 



cardiovascular components, 211, 213 



dynamic pattern, 192 



effect of environment, 304 



effect of sensorimotor lesions, 527-54 



effector apparatus, formation of, 211 

 elaboration and formation of properties, 



95-113 



established by coupling electrical excita- 

 tion of two cortical areas, 133-51 



functional role ot subcortical structures. 



393-41 -i 

 instrumental, role of cerebral cortex in 



learning of, 589-600 

 local motor-defensive, 217 

 motor, 217 



motor component, 211 

 physiological architecture, 189-229 

 respiratory component, 211, 212 

 return afferentation of results, 221 

 role of stimuli. 95 



sccreto-motor method of study, 187 

 secretory component, 21 1 

 shortened, 234 



trace, relation to recent memory, 115 

 vegetative components, 213, 216 

 monosynaptic, effects of disuse, 338 

 post-tetamc potentiation. 353-73 

 unconditioned, 3 

 Reflexo-conditioned techniques, 625 

 Reinforcement of conditioned reflex, 236, 



239 

 Reinforcement-interference test, 167 

 Rcserpinc, effect on learning, 29 

 Response, conditioned, 133 

 delayed, 46 



relation to recent memory, 116 

 evoked, significance of photic stimulus, 

 603-23 

 Retention of learning during elcctrographic 



after-discharges, 520 

 Reticular formation, influence upon cortical 



evoked potentials, 433-44 

 Retina, neurohistology, 329, 330 

 Retinopetal fibres, 330 

 Reverberating circuits responsible for recent 



memory, localization, 122 

 Reverberation, 3 1 



Rhincncephalon, single-unit response to elec- 

 trical stimulation, 177 

 Ribonucleic acid changes in cells subjected to 



synaptic bombardment, 389 

 Rodents, nest building, 53-8 



Scchenov on evolution tif cerebral function, 



II, 12 

 Sensory deafferentatioii. midpontine. 416 

 Sexual selection, 17 

 Signal responses 265 

 Sleep inhibitory systems acting during, 446, 



470 

 neurophysiological mechanisms, 445-79 

 Sleep-wakefulness rhythm, 413 

 Spencer on evolution of cerebral function, 



4, i, 6, 7, 8 



