SUBJECT INDEX 



471 



Information {see Transmission of informa- 

 tion; Preservation of information) 

 Infra-red, inhibitory effects, 21 Off. 

 Inhibitine N, 382 

 Inhibitine NC, 382, 383 

 a-Inhibition, 105, 107, 362 

 /3-Inhibition, 105, 364 

 Inhibition, antidromic 61 



as consequence of action, 14, 15, 17 



between generations, 455 



by depolarization, 182, 304 



by depolarizing potentials, 4 



by excitatory impulses, 3 



by extremely fine synaptic structures, 36 



by la volleys, 76 



by infra-red radiation, 194ff., 2IOff. 



by light, 194 



synaptic origin, 210 



by reticular stimulation, 68 



by subnormality, 19 



chemical hypothesis, 16, 24, 25 



definition of, 13 



direct, 17, 21, 22, 23, 47 



due to fatigue, 3 



due to superposition of inhibitory current 

 and hyperpolarization, 77 



during anoxia, 1811T. 



extrasynaptic hypothesis of, 1 8 



in cortical neurons, 410ff. 



in crustacean hearts, 144ff, 360, 402 



in crustacean stretch receptors, 83, 84, 

 302ff. 



in mollusc hearts, 136ff. 



in polysynaptic systems, 26 



in sensory processes, 241 ff., 285ff". 



in sympathetic ganglia, 19 



in the cutaneous system, 241 



in the spinal court, 13ff", 410". 47fi"., 6 Iff"., 

 71ff-. 



long lasting, 447ff. 

 Inhibition, monistic view of, 21 



of crustacean muscle fibers, 24, 87ff"., 92ff"., 

 105ff". 



of neuroendocrine systems, 447ff. 



of neurosecretory cells, 447 



Inhibition of pacemaker neurons, 156 



orthodromic, 62 



peripheral, 3, 24, 870"., 92ff"., 105ff"., 144ff"., 

 302ff. 



pluralistic view of, 21 



respiratory, 2 



without iinhibitory postsynaptic poten- 

 tials, 204 

 Inhibitory action, by creation of pores, 84, 



89, 90, 122 



of adrenaline, 19 



Inhibitory connections of primary afferents, 



33 



Inhibitory current, 75, 76, 78 



Inhibitory factor of Florey {see Factor I, 

 Substance I) 



Inhibitory fibers, history of their discovery. 

 Iff". 



Inhibitory interaction, 241ff"., 420, 422 



Inhibitory interneurons, 33, 41, 38, 210 {see 

 also Renshaw cells) 



Inhibitory hormones, 447ff". 



Inhibitory neurons in neuro-endocrine sys- 

 tems, 450 



Inhibitory latency, 50ff., 78 



Inhibitory nerve net, 399 



Inhibitory neurons, history of their dis- 

 covery. Iff". 



Inhibitory pathways, 32fT, 47fr. 

 of oculomotor neurons, 36ff. 

 to motoneurons, 47ff". 



Inhibitory postsynaptic potential = I.p.s.p. 



Inhibitory receptive field, 417 {see also 

 241 ff.) 



Inhibitory substance, 24, 43. 80, 81, 84, 105, 

 no,, 111 173, 315, 342ff., 350ff., 369, 

 409 {see also Factor I, Substance I) 



Inhibitory substance, of Lissak et al., 359, 

 365, 369ff. 

 of Pfeifer and Pataky, 359. 363, 365 



Inhibitory surround {see Inhibitory recep- 

 tive field) 



Inhibitory transmitter, acting on plugs of 

 membrane pores, 84, 90 {see also 81, 122) 



Intercellular resistance, 130 



Interference hypothesis, 22, 23 



Intermediate nucleus of Cajal, 33 



Intermittent conduction, 18 



Interneurons, 19, 20, 24, 26, 33, 41, 38, 66, 

 210 {see also Renshaw cells) 



Intracellular approach, limitations, 65 



Intiacellular pH measurements, 189 



Intracellular resistance, 130 



Intrinsic burst, 149 



Ionic mechanisms of inhibitory process, 

 79ff., 87ff., 114ff., 313ff. 



I.p.s.p., 23, 74, 158, 209, 214, 304ff"., 343, 

 350, 351, 352, 361, 424. 436. 443 {see also 

 Equilibrium potential of i.p.s.p., Ionic 

 mechanism of inhibitory process) 

 facilitation of, 167 

 inversion of by electrophoretic injection, 



80 

 recorded from ventral roots, 78 



Isolated ventral horn preparation, 35 



Isonicotinic acid hydrazide (INH), 383, 385, 

 386 



I — synapses, 74 



