INDEX 



1429 



feed-back mechanisms with pyrami- 

 dal, goo 

 functional significance, 901-920 

 gamma motoneurons and, 922 

 instinctive behavior and, 913, 922 

 integration, reticular formation and, 



9"3 

 interrelation 



cortex and cerebellum, 899 

 cortex, cerebellum and spinal servo- 

 mechanisms, 898 

 lesions, 872-901 

 locomotion and, got 

 mammalian behavior and, 915 

 mesencephalic structures and, 884-890 

 motor cortex and cerebellum, 921 

 normal physiology of, 872-948 

 organization, 905, gig 

 pathological physiology of, 872-goi 

 physiological correlation, 901-919 

 posture and, 901 

 reappraisal of terms, 798, 818 

 responses, 792, 793 

 reticular formation and, 922 

 scope, 863 



spinal reflex activity and, gog, g22 

 stimulation of, 872-goi 

 telencephalic structures, 872-878 

 thalamoreticular system and, gio 

 tremor and, r2g8 

 Eye movements, io8g-i 107 

 adversive, 1098 



coUiculi and, 1 100 

 alpha motoneurons and, lOgs 

 anatomy, io8g-iog2 

 centers for, 1 102 

 frontal field and, 1102 

 head movement and, iog6, 1102 

 human, 1 102-1 107 



lixation movements, 1102, 1103, 



1 106 

 pursuit, 1 103 



learning in, 1 1 04 

 saccadic, 1 103 

 integration of, 1 104 

 kinesthesis and, i 106 

 myosensory tension and, 1107 

 neck reflexes and, iog7 

 otoliths and, iog7 

 responses in brain, iog5 

 rotation and, 1095 

 species differences, 1089 

 superior coUiculus and, 1 099-1 101 

 vertical movement and, 1 096 

 vestibular reflexes and, iog5-iog7 

 visual cortex and, i loi 

 Eye muscles, iogo-iog4 

 afferent fibers 



action potential, iog3 

 discharges from, 1092 

 fifth cranial nerve, 1094 

 paths from, 1093 

 gamma and alpha motor fibers, 1092 



motor end plate, logo 

 motor units, 1091 



nerve fiber size, log I 

 of goat, I og3 

 spindles, logo 

 stretch reflex and, iog4 

 time relations of, 1 og2 



Fastigial nucleus 



decerebrate rigidity, 786 

 destruction of, 1270 

 postural effects of lesions, 788 

 stimulation of, 1262 

 Fear 



amygdaloid stimulation and, 1406 

 Feeding 



behavior, 1 1 98 



amygdaloid stimulation and, 1406 

 central control of, 1 197-1205 

 central perception, 1 202 

 compared to breathing, 1200 

 ethology, 1 1 98 



interrelationships and integration, 1 1 gg 

 locomotor activity, 1204 

 methods of study, 1198 

 multifactor concept, 1203 

 psychology, i ig8 

 regulation factors involved, 1202 

 sensation, discrimination and, iig7, 



iig8 

 supplementary mechanisms, 1 203, 1 204 

 Fever 



body temperature control and, iigi 

 Flaccid paralysis 



following motor area ablation, 807 

 Flexor reflexes 



crossed conditioning, 946 

 Group II fibers, 944 

 Group II and III fibers and, 945 

 in decerebrate rigidity, 786 

 local sign, 936 



lovtf and high thresholds, 944 

 Follicle-stimulating hormone 

 secretion 



central nervous system effects, 1008 

 external environment and, 1008 

 Food intake: see Feeding 

 Forebrain 



cardiovascular responses from, 1149 

 divisions of, 1 326 

 external portion, 1325 

 internal core, 1325 

 intrinsic sectors, definition, 1324 

 intrinsic systems, 1323-1341 

 definition, 1324 

 frontal 



intentional behavior, 1333, 1336 

 lesions, 1335, 1336 

 model of, 1337- 1340 

 neurobehavioral analysis, 1 333- 



1337 

 lesions, behavior and, 1 33 1 

 posterior 



diff'erential behavior and, 1333 

 lesions of, 1327, 1332 

 model of, 1332, 1333 

 neurobehavioral analysis, 1 326- 



133^ 



relation to extrinsic system, 1 333 

 lesions, problem solving and, 1326- 



1340 

 mediobasal ablation and stimulation 



of, 1337 

 Fornicate gyrus: see Cingulate cortex 

 Fornix 



connections with hypothalamus, 964 



definition, 1373 

 Fourth ventricle 



pressor and depressor areas of floor, 



958 

 swallowing area of floor, 95g 

 Frontal lobes: see Forebrain 



Galvanic skin reflex 



localization of control, g6i 

 Gamma motoneurons 

 see also Motoneurons 

 cerebellum and, 1 261, 1264 

 extrapyramidal motor system, g22 

 innervation to, 1068 

 muscle spindle activity and, gio 

 posture and, 1077 

 Ganglia 



functions, discharge from, g88 

 synapse, structure, g87 

 transmission in, g89 

 Gastric erosions 



diencephalon and, g7i 

 Gastric secretion 



central control of, 1 1 68 

 Gastrointestinal tract 



see also Digestive function 

 activity 



central control of, 1 166 

 hypothalamus and, 1 167 

 amygdaloid stimulation and, 1404 

 Generator potential 



in thermodetectors, 1177, 1178 

 Globus pallidus: see Pallidum 

 Golgi tendon organs 



structure, g3i 

 Gonadotrophic hormones 

 secretion 



hypothalamic stimulation and, 1024 

 pituitary stalk section and, 1017- 



1019 

 transplantation and, 101 7-1 01 9 

 Grasp reflex 



see also Instinctive grasp reaction; 



Traction response 

 areas 4 and 6 and, 896 

 cortical ablation, 791 

 description, 791 

 pyramidotomy and, 839 

 Gyrus dentatus: see Hippocampus 



