398 John R. Platt 



7. W. H. Marshall and S. A. Talbot: Visual mechanisms. In: Biological Symposia, ed. by 

 H. Kliiver, 7, 117-164, Jaques Cattell, Lancaster, Pa. (1942). 



8. R. W. Ditchburn: Eye-movement in relation to retinal action. Optica Acta 1, 171-176 

 (1955). 



9. R. W. Ditchburn and D. H. Fender: The stabilized retinal image. Optica Acta 2, 

 128-133 (1955). 



10. R. W. Ditchburn: Stabilized interference fringes on the retina. Nature, Land. 177, 

 434 (1956). 



11. L. A. RiGGS, F. Ratliff, J. C. Cornsweet, and T. N. Cornsweet: The disappearance 

 of steadily fixated visual test object. /. Opt. Soc. Amer. 43, 495-501 (1953). 



12. L. A. Riggs, J. C. Armington, and F. Ratliff: Motions of the retinal image during 

 fixation. /. Opt. Soc. Amer. 44, 315-321 (1954). 



13. S. Cooper and P. M. Daniel: Muscle spindles in human extrinsic eye muscles. Brain 

 72, 1-24 (1949). 



14. a. S. Sunderland: A preliminary note on the presence of neuromuscular spindles in 

 the extrinsic ocular muscles in man. Anat. Rec. 103, 561-2 (1949). 



b. N. C. R. Merrilees, S. Sunderland and W. Mayhow : Neuromuscular spindles in 

 the extraocular muscles in man. Anat. Rec. 108, 23-30 (1950). 



15. E. J. Ludvigh: Symposium on Physiol. Psychology, Pensacola, Mar. 10-11 Office of 

 Naval Research Symposium Report ACR-\, p. 125 (1955). 



16. D. M. Mackay: Towards an information-plan model of human behaviour. Brit. J. 

 Psychol. 47, 30-43 (1956). 



17. D. O. Hebb: The Organization of Behaviour, J. Wiley and Sons, New York (1949). 



18. H. Quastler, e/ fl/. : Human Performance in Information Transmission, I-V, Tech. 

 Report 62, 68, 69, 70, Control Systems Laboratory, Univ. of 111., Urbana, 111. 



