SUBJECT INDEX 



469 



Cytochemical organization of Aplysia nerve 



cells, 183ff. 

 Cytochromes, 196, 225, 449 



Darkschewitsch nucleus, 37, 38, 39 

 Decremental conduction, 1 5, 22, 23 

 Definition of inhibition, 13 



chemopotentials, 179 



neuropile, 398 



stimulation, 325 



stimulus, 325 

 Delay paths, 22 

 Demarcation current, 16 

 Dendritic arborzations as stretch receptors, 



145 

 Dendritic conduction, 23 

 Depolarizing action of inhibitory impulses, 



313, 359ff. 

 Depolarizing inhibition, postsynaptic po- 



tenials, 158, 304ff. 

 Depolarizing pressure, 62, 63, 64, 65 

 Depolarizing p.s.p.s., 9 

 Desensitization, 11 



to acetylcholine, 4 

 Diamox, 390 

 Diapause, 448ff. 

 Dicarboxylic amino acids, 344 

 Differential inhibition by GABA of the 



pacemakers, 174 

 Dimethyl->'-butyrylcholine, 388 

 N:N-Dimethyl-5-hydroxy tryptamine, 138 

 Diphenol hydantoin (alleviatin), 390 

 Diploptera, 451, 452 

 Direct inhibition, hypothesis of, 15 



of motoneurons, 33, 47 

 Disynaptic reflex system, 25, 26, 28, 38 

 Dog, motor cortex, 376, 383 

 Dorsal column relay fibers, 419 

 Dorsal nerve, 147 

 Dorsal root afferent volleys, 20 

 Dorsal root reflex, 12 

 DPN, 185, 186 

 D-Tubocurarine, 93, 383, 385 

 Dual action of individual neurons, 2, 160 

 Dual inhibitory action, 78 

 Dual nature of inhibitory fiber, 160 



Earthworm, 338, 401 



giant fibers, 301 

 Eccentric neurons of Limulus eye, 5, 326, 



328, 329 

 Eel electroplaques, 93 



heart, 114 

 Eighth nerve, 6 

 Electric fishes, 9, 93, 333, 336 

 Electric time constant, 71 

 Electric transmission in cardiac tissue, 132 

 Electrical guidance system, fishes, 331 



Electrophoretic injection of ions, 80ff., 102, 



103 

 Electroplaques, 93, 333 

 Electrotonic potentials, 149 

 Electrically excitable membrane, 92, 328 

 Electrically inexcitable membrane, 9, 328, 



330 

 Electrotonus in Purkinje fibers, 125 



non-uniform spread of, 127 

 Energy transfer in organized cytostructures, 



224 

 Ephatic connections, 12 

 Epilepsy in dogs, cure of, 389ff. 



in humans, 389ff. 

 Epinephrine {see Adrenaline) 

 E.p.s.p., potentiation of i.p.s.p., 75 



equilibrium potential, 102, 351 



recorded from ventral roots, 78 

 Equilibrium potential, effect of electrodes 



on, 315 



ofCl-, 81 



of e.p.s.p., 102, 351 



of i.p.s.p., 73, 74, 82, 88, 100, 162, 305, 

 309, 313, 344, 351 

 Equilibrium potention of K+, 81 

 Equivalent circuit of local current spread, 



128 

 Eserine, 93, 137 



Excitation by hyperpolarization, 326ff. 

 Excitation, post-inhibitory, 152 



produced by infra-red radiations, 194 

 light, 194 

 Excitatory drive (surplus excitation), 62, 64, 



65,66 

 Excitatory effects of inhibitory fibers, 164, 



{see also 307, 318ff.) 

 Excitatory junction potentials, crustacean 



muscle, 96ff, 105ff, 111 {see also E.p.s.p.) 

 Excitatory junctional activity, creation of 



pores, 89 

 Excitatory minature potentials, 1 1 1 

 Excitatory nerve terminals, 1 1 1 

 Excitatory postsynaptic potential 



{see E.p.s.p.) 

 Excitatory substance (Hayashi), 376ff. 

 Excitatory synaptic membranes, 9 

 Excitatory transmitter substance, 24, 110, 



321,409 



from GABA 385ff. 

 Excitine, 377 



Excitine-Inhibitine hypothesis, 378ff. 

 Excitine N, 382 

 Excitine NC, 380, 382, 383 

 Experimental embryology, 32 

 Experimental neurohistology, 32 

 Extensor motoneurons, 65 

 Extensor reflexes, 62 



