REFERENCES 



413 



specific one suggested here might be alto- 

 gether too crude. The use of "square wave" 

 acceleration pulses requires rather elaborate 

 apparatus and a full-fledged harmonic analy- 

 sis; in view of these complexities it might be 

 worth while to consider the use of pure 

 sinusoidal motion. If such has not already 

 been done, a careful study of exposure time 

 versus incidence would be in order, and in 

 this connection it might be convenient to 

 use in the analysis existing formal theories 

 of neural behavior. A rather forlorn hope 

 that someone may hit upon a superior 

 criterion of incidence of sickness than hereto 

 used would seem to be an appropriate closing 

 recommendation . 



Acknowledgement 



The author is indebted to Professor 

 Donald Lindsley and Dr. Herbert Landahl 

 for suggestions incorporated in the manu- 

 script, to Dr. James Birren, for valuable 

 editing, and to Mr. Hugh Flynn for aid 

 in obtaining many of the references here 

 cited. 



References 



1. Adrian, E. D. Discharges from vestibular 



receptors in the cat. /. Physiol., 1943, 101, 

 389^07. 



2. Alexander, S. J., Cotzin, M., Hill, C. J., 



RicciUTi, E. A., & Wendt, G. R. Wes- 

 leyan University studies on motion sickness. 



I. The effects of variation of time intervals 

 between accelerations upon sickness rates. 

 /. Psychol, 1945, 19, 49-62. 



3. Alexander, S. J., Cotzin, M., Hill, C. J., 



RicciUTi, E. A., & Wendt, G. R. Wes- 

 leyan University studies on motion sickness. 



II. A second approach to the problem of the 

 effects of variation of time intervals between 

 accelerations upon sickness rates. /. Psy- 

 chol., 1945, 19, 63-68. 



4. Alexander, S. J., Cotzin, M., Hill, C. J., 



RicciUTi, E. A., & Wendt, G. R. Wes- 

 leyan University studies on motion sickness. 



III. The effects of various accelerations 

 upon sickness rates. J. Psychol., 1945, 20, 

 3-8. 



5. Alexander, S. J., Cotzin, M., Hill, C. J., 



Rkxiuti, E. a., & Wendt, G. R. Wes- 

 leyan University studies on motion sickness. 



IV. The effects of waves containing two 

 acceleration levels upon motion sickness. 

 /. Psychol., 1945, 20, 9-18. 



6. Cipriani, A. Adjustable head rest for swings. 



National Research Council of Canada, 1943, 

 C4032. 



7. Cipriani, A. An analysis of the forces en- 



countered on the simple swing used in the 

 study of motion sickness. National Re- 

 search Council of Canada, 1942, C2246. 



8. Deacon, G. E. R. Simultaneous frequency 



analyses of waves and ship movement. Ad- 

 miralty Research Laboratory, 103.40/R. 1/ 

 W., 23 October, 1945. 



9. Dodge, R. Thresholds of rotation. J. exp. 



Psychol, 1923, 6, 107-137. 



10. DoHLMAN, G. Die Rolle der Perilymphe bei 



den vestibularen Reaktionen. Arch. 

 Ohren-, Nasen, Kehl Heilkunde, 1941, 150, 

 25-30. 



11. DoHLMAN, G. Investigations in the function 



of the semicircular canals. Acta Oto- 

 Laryngol, 1944, Suppl. 51, 211-219. 



12. Hasegawa, T. Uber die labyrintharan Au- 



genbewegungen bei Anderung der Kopflage 

 und bei Progress! vbewegungen. Acta Oto- 

 laryngol, 1940, 28, 593-600. 



13. HowLETT, J. G., & Brett, J. R. A specula- 



tion on the mechanism of utricular response 

 to stimulation in motion sickness. National 

 Research Council of Canada, 1943, C2509. 



14. JoNASON, I., Khylstedt, S., & Nylen, C. O. 



Tierversuche mit beschleunigter Rotation. 

 Acta Oto-Laryngol, 1940, 28, 327-339. 



15. Jones, H. M. The function of the labyrinth. 



/. Laryngol & Otol, 1945, 60, 425-440. 



16. Lowenstein, O., & Sand, A. The mechanism 



of the semicircular canal. A study of the 

 responses of single fiber preparations to 

 angular accelerations and to rotation at 

 constant speed. Proc. Roy. Soc. London, 

 1940, 129B, 256-275. 



17. Manning, G. W., & Stewart, W. G. The 



effect of position on the incidence of swing 

 sickness . National Research Council of Can- 

 ada, 1942, C2426. 



18. McEachern, D., Morton, G., & Lehman, P. 



Seasickness and other forms of motion sick- 

 ness. War Med., 1942, 2, 410-428. 



19. McIntyre, a. K. Effect of head position on 



susceptibility to motion sickness. Com- 

 mittee on Flying Personnel Research, 

 RAAF, 1943, Rep. FR 86. 



20. McNally, W. V. The otoliths and the part 



they play in man. Laryngosc, 1944, 54, 

 304-323. 



21. McNally, W. F., & Stuart, E. A. Physiology 



of the labyrinth reviewed in relation to sea- 



