6l8 RECORD OF MEETINGS OF THE 



one fixation point to another. Two opposing views are those 

 of Holt, 1 who holds to a complete anaesthesia or inhibition of 

 the visual centre during the movement, and of Dodge, 2 who 

 believes that vision there is possible but under ordinary con- 

 ditions not actualized, because the faint blur produced by 

 moving the eye across a variegated field is so brief and mean- 

 ingless as to be ignored, just as entoptic phenomena are ignored. 

 Proceeding on the supposition that if the latter view were 

 correct it should be possible by attention and practice to become 

 conscious of the stimuli that affect the eye during movement, 

 the author has convinced himself of the following facts : 



i. During head movements, an object held in the mouth 

 may remain in clear vision. 



2. During convergence, the two monocular fields may be 

 seen to move across each other. 



3. During eye-jumps proper, after-images may remain in 

 consciousness if the lids, are closed (Exner), or if the background 

 is dark or plain; it is also possible, in short jumps, or at the 

 beginning and end of longer ones, to see entoptic spots move 

 across the background. 



4. External objects moving in the same direction as the 

 eye are distinctly seen when their angular velocity with respect 

 to the eye coincides with that of the eye at any part of its jump 

 (Cattell, Dodge). With reference to Holt's objection that 

 what is seen may be the positive after-image, appearing after 

 the eye has come to rest, it should be noted that the objects 

 so brought to clear vision are correctly localized in space, 

 instead of being projected against the background at the new 

 point of fixation, as would be the case with after-images. Thus 

 not only vision, but correct localization of objects seen, is pos- 

 sible during eye-jumps. 



5. Stationary objects over which the eye passes can also 

 be seen after practice. Fusion, nicker, and especially apparent 

 motion of the objects, corresponding to the actual motion of 



1 Psychological Review, Monograph Supplements, 1903, IV., pp. 3-45; 

 Psychological Bulletin, 1905, II. 



2 Ibid., 1900, VII., pp. 454-465; Psychological Bulletin 1905, II., pp. 

 193-199. 



