534 



SUBJECT INDEX 



Eye 



blind spot, 27 



chromatic aberration, 257 



Factor analysis, 495 

 Fatigue, 70, 74, 146 



auditory (See Auditory) 

 Feedback 



in loudspeakers, 233 

 Flybar, 205 (See also Auditory signals) 



sweeping tone signals, 206 



three tone signals, 206 

 Flying personnel, 346, 347 

 Food 



emergency rations, 323 



serving, 320 



supply and storage, 320 

 central loading, 321 



waste, 323 

 Fourier series, 410 

 Frequency scale 



weighting for intelligibility, 245 

 Frustration 



in job assignment, 470 



Group 

 behavior 

 and beliefs of individuals, 465 

 and individual skills, 465 

 and threat to individual need satisfaction, 



465, 476 

 as satisfying individual needs, 464, 476 

 characteristics 



change as a result of group experience, 465 

 effectiveness, 463 

 defined, 464 



methods of study, 466, 475 

 factor analysis of variables, 466 

 factorial experiments, 475 

 group indices, 468 

 interviews, 467 

 observation, 467 

 projective techniques, 467 

 questionnaires, 466, 467, 478 

 situation tests, 468 

 sociometry, 467, 470 

 validity, 468 

 problem, 464 

 related factors, 469 

 characteristics of group members, 469 

 appropriate individual job assignments, 



470 

 duration of membership, 471 

 introduction of new personnel, 471 

 minimum prerequisites for membership, 



469 

 personality characteristics, 469 

 training 



recruit, 470 

 technical, 470 

 conditions of group living, 469, 472 

 combat experience, 473 

 general conditions within the group, 472 

 group success and failure, 474 

 relation to other groups, 472 

 leader-follower relations, 469, 474 

 institutional, 463 

 formal characteristics, 463, 478 

 informal characteristics, 463, 478 



Habitability 

 combat vehicles 

 limiting temperatures, 424 

 Hand steadiness, 348 



Hearing, 346 (See also Audition and Auditory) 

 loss 

 and frequency of exposure tone, 347 

 and intensity of sound, 346 

 cumulative effects, 346 

 individual differences, 346 

 Heat 



exchange 



body-environment 

 body cooling zone, 292 

 comfort zone, 291 

 conduction, 283 

 convection, 283 

 forced, 284 

 natural, 283 

 evaporation, 286 

 upper limits, 297 

 wet skin area, 286 

 evaporative regulation zone, 292 



physiological adaptation, 296 

 physical aspects, 279 

 radiation, 280 

 surface area, 281 

 regulation zones, 291 

 nude vs. clothed bodies, 293 

 Homeostasis, 417 



thermo-regulation, 269 

 Hypothalamus 

 temperature regulation, 278 



Identification 



group, 443 



patterns 



development, 442 



with officers, 443 

 Illumination (illuminance) 



(See Photometry) 

 Illusions, 127, 206 

 Impulse mastery, 445 



collapse, 448 



development in adults, 447, 457 



