SUBJECT INDEX 



473 



Neuromuscular transmission, Crustacea, 



92ff., 105ff., 313ff. 

 Neurons, dual action of, 2 

 "Neuropil" (see Neuropile) 

 Neuropile, 18, 145, 240, 395flF., 424flf. 



definition of, 398 



neocortex, morphology, 426ff". 

 Neurosecretory cells, 331, 333, 336, 337 



electrical activity, 448ff. 

 Neurosecretory granules, 338 

 Neutral red, 196, 214, 215 

 NH4CI, 97 

 Nitella, 196, 223 

 Nitrate, 80, 313 

 Noise, 4 



Non-addressed systems, 397 

 Non-uniform spread of electrotonus, 127 

 Nor-adrenaline, 357 



Occlusive interaction, 417 



Occlusion, 410 



Octopus, sexual development, 453, 456 



Oculomotor neurons, 19, 38 



Oculomotor nucleus, 38 



"Off"" response, 5, 201, 202, 214, 217 (see 

 also 241ff"., 323, 324; see also Postinhibi- 

 tory excitation; Postinhibitory facilita- 

 tion; Postinhibitory rebound; Rebound) 



Olfactory epithelium, 330 



Olfactory receptors, 291 



"On" response, 201, 202, 214 (see also 

 241ff"., 323, 324) 



Opener muscle, crayfish, 87ff". 



Orconectes virilis, 1 1 1 



Orthodromic inhibition, 62 



Oscillatory activity. Sepia giant axon, 215 



Oscillatory potentials, Aplvsia nerve cells, 

 197, 214 



Ostrea, 139 



Ostrea circiimpicta, 136 



Ostrea gigas, 136 



Oxygen consumption of illuminated axons, 

 225 



Oxygen, required for repolarization, 185 



Oxymethyl pyrimidine, 385, 386 



Pacemaker, 138, 144, 149, 302, 360, 398, 



399, 400, 401 

 Pacemaker cells, 5, 149ff. 

 Pacinian corpuscle, 204, 291, 293, 326 

 Palaemon sirratus, 454 

 PamtUrus, 159, 160, 163, 165, 176 

 Pamdirus argus, 144, 147 

 Panulirus interruptus, 144, 151, 158 

 Paradox, 142 



Paradoxical driving, 154, 158 



Parallel contact synapses ("giant synapses"), 

 40 



Paratya, 173 



Pathways of recurrent inhibition, 35 



Patterning, 163ff"., Hlff". 



Pedal ganglion, 5 



Pericardial organ, 147, 173 



Peripheral inhibition, 3, 24, 87ff"., 92ff"., 

 105ff'. 



Permeability, see CI", K+ (also Equilibrium 

 potential) 



Pharmacology cf neocortical neurons, onto- 

 genetic changes, 432fT. 



pH, intracellular, 189 



Phenethylamine, 93 



Phenobarbitol, 390 



Phosphate, 80 



Photoactivation of nerve cells, 194ff. 



Photons, 194, 223 



Photoreceptors, 223 (see also 24 Iff.) 



Photosynthesis, 223 



Physiologically adressed systems, 397 



Picrotoxin, 93, 94, 95, 96, 102, 105, 107, 109, 

 110, 358,361 



Pigmented nerve cells, Aplysia, 194ff". 



Pilocarpin, 335 



Pit Vipers, facial pit sense organ, 217 



Place theory, 22, 23 



Pleurodeles Waltli, 42, 43 



Pluralistic view of inhibition, 21 



Polysynaptic system, 26 



Pons, 38 



Pores, charged, 84, 89 

 opening of by inhibitory transmitter, 84, 

 90, 122 



Porifera, 338 



Positive variation, 16 



Posterior biceps-semitendinosus, 78 



Post-excitatory depression, 150, 318ff. 



Post-inhibitory depression, 170, 306 



Post-inhibitory excitation, 152, 308, 318ff". 



Postinhibitory facilitation, 306, 307 



Post-inhibitory rebound, 153, 156, 162, 177, 

 214, 217 (see also "Off"" response) 

 compared with release from hyperpolar- 



izing currents, 162 

 without membrane potential shift, 162, 

 307 



Postsynaptic inhibition, 71 fi"., 84ff"., 87, 92ff"., 

 105tT., 114ff"., 151ff"., 302ff". 



Postsynaptic potential (see Axodendritic 

 postsynaptic potential; Axosomatic post- 

 synaptic potential; E.p.s.p.; Excitatory 

 junction potential; I.p.s.p.) 



Potassium (see K+, 42 K) 



Potential field, 59 



