| 单词 | negative after-image |
| 释义 | > as lemmasnegative after-image negative after-image n. an after-image of complementary colour or brightness to that of the original image. ΘΚΠ the world > physical sensation > sight and vision > thing seen > [noun] > (retained) visual image spectrum1786 photogene1864 negative after-image1870 incidental images1876 optogram1878 1870 S. H. Hodgson Theory of Pract. I. ii. i. §13. 92 It is not necessary..to enter upon the wide field of contrast of colours, simultaneous or successive, and the production of positive or negative after-images. 1885 Science 4 Dec. 505 A patient..made to look at a red wafer on a sheet of paper, but told that there is nothing there, will not see the wafer... As soon, however, as the wafer is blown away, he will say he sees a green spot, its negative after-image. 1967 D. A. Schreuder in J. B. de Boer Public Lighting iv. 167 Complete adaptation [to the luminance of the field of vision] requires a certain length of time. The slowest, and hence in practice the most important process is the disappearance of the negative after-images. 1983 A. O. Rorty Mind in Action (1988) 343 The simplest and most basic moves of the imagination tend to lead us to zigzag repetitive patterns, replacing negative after-images for the originals, and then doubling back to the double negative. 2010 A. Enns tr. F. Kittler Optical Media iii. 149 In contrast to Goethe's celebrated concept of the negative after-image, the positive after-image occurs when the eye continues to see an object in the same place a moment after it has already disappeared or moved away. < as lemmas |
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