770 



HANDBOOK OF PHYSIOLOGY 



NEUROPHYSIOLOGY I 



Mayow, 7 



Monro, 14 



Miiller, 20, 34 



Newton, 8 



Pavlov, 55 



Penfield, 49 



Pfliiger, 22 



Plato, 40 



Praudicz-Neminsky, 255 



Piochaska. 2 



7. 33 



Purkinje, 26, 261 



Remak, 26 



Rolando, 44, 47 



Rosenblueth, 219, 225 



Rosenthal, 38 



Ruffini, 30 



Schaefer, 48 



Schneider, 42 



Schwann, 26 



Sciamanna, 48 



Sechenov, 52, 54 



Sherrington, 30, 35, 36, 39, 40, 56, 

 148, 149 



Soemmering, 27, 41 



Spencer, 54 



Taveau, 230 



Tiirck, 30 



Ukhtonisky, 149 



Unzer, 33 



Vesalius, 3 



von Gerlach : see Gerlach 



von Haller : see Haller 



von Helmholtz ; see Helmholtz 



von Humbolt: see Humbolt 



von Kolliker: see KoUiker 



von Soemerring : see Soemerring 



Waldeyer-Hartz, 27 



Waller, 26 



Walter, 52 



Wang, 255 



Wedensky, 39 



West, 36 



Whytt, 32, 41 



Willis, 7, 31, 41 



Winslow, 31 



Young, 648 

 Hofmeister series: see Taste threshold 

 Hot sensation : see Thermal sensations 

 5-HT: see 5-Hydro.\ytryptamine 

 5-Hydroxytryptamine 

 as pain excitant, 479 

 as transmitter substance, 1 79 

 mollusc muscle and, 248 

 Hyperalgesia 



trauma causing, 478 

 Hyperopia 



definition, 655 

 Hyperpolarization : see Postsynaptic po- 

 tentials, hyperpolarizing 

 Hypoglycemia 



epinephrine release and, 226 



Hyperpathia 



anesthesia and, 477 

 Hypothermia 



pre- and postsynaptic potentials and, 

 302 



Illuminance 



delinition, 647, 665 

 Image formation, 647-691 



see also Eye; Vision; Retinal image 



astigmatism and, 652 



lines of sight and, 653 



pupil and, 652 



pupillary axis and, 653 



refracting mechanism and, 649 



size of retinal image and, 654 

 Implicit time 



definition of, 728 



of flicker, 730 



relation to stimulus area, 728 

 Inferior colliculus 



auditory fibers in, 589 

 Inferior quadrigeminal brachium 



auditory pathway and, 590 

 Inflammation 



pain and, 463 

 Inhibition 



afferent in medial lemniscal system, 408 



auditory nerve and, 580 



as distinct from occlusion, 310 



central nervous system and, 188 



central paths for, 70, 7 1 



crustacean muscle and, 244 



end-plate potential and, 244 



membrane potential and, 245 



muscle membrane and, 245 



pain and, 499, 500 



pathways 

 central, 70 

 interneurons of, 7 1 



referred pain and, 500 



retina and, 706 



seizures and, 344, 346 



sensory neuron, 379 



sodium ions and, 70 



strychnine tetanus and, 561 



synaptic mechanism of, 68-70 



transmitters for, 71-72 

 Inhibitory synapses: see Synapse, inhibi- 

 tory 

 Injury 



hyperalgesia and, 478 



pre- and postsynaptic potentials and, 

 302 



response of cochlear potentials, 577 

 Injury potential 



components, 326 



d.c. recording and, 316 

 Insects 



see also Invertebrates 



binocular vision, 635 



eye sensitivity to ultraviolet, 641 



muscle 



multiterminal innervation, 247 

 slow and fast contraction, 246 

 units in, 245 



neuromuscular transmission in, 245 



receptor cells in, 373 



retina in, 631 



sense organs in, 373 

 Integrative activity 



synapses and, 182 



utility of electrical inexcitability, 187 

 Intensity discrimination 



transmission of, 583 

 Intensity-time relation: see Strength-dura- 

 tion relation 

 Interneuron 



definition, 272 

 Invertebrates 



see also Unicellular organisms; Pelecy- 

 pods; Multicellular organisms; In- 

 sects; Gastropods; Crustaceans; 

 Coelenterates ; Cephalopods; Arthro- 

 pods; Annelids; Molluscs 



axon conduction, 1 1 1 



chemoreceptors in, 375 



color sision, 640 



form perception, 641 



hearing, 381 



mechanoceptors, 380 



muscle 



conduction, 250 

 end-plate potentials, 243 

 responses, 174 



non-photic receptors, 369 



pattern recognition, 641 



Purkinje shift, 640 



receptor cells in, 371, 375 



response to dynamic stimuli, 382 



response to static stimuli, 382 



sense organs compared with verte- 

 brate, 374 



spectral sensiti\ity, 640 



squid axon as cable, 85 



statocysts in, 382 



stretch receptors 



efferent control of, 743 



tactile sense, 380 



thermoreceptors, 379 



true receptors, 371 



tympanal organs, 382 



vibration sense in, 380 

 lodopsin 



see also Visual pigments 



bleaching and resynthesis, 687 



photopic sensitivity and, 682 

 Ionic hypothesis, 62-65, 93, 94, 118, 119 



explanation of properties of nerve 

 fibers, 64 



refractory period and, 64 



synaptic transmission and, 63 



