| 单词 | fixation-point |
| 释义 | > as lemmasfixation-point fixation-point n. the point at which an eye is directed, so that its image falls on the most sensitive part of the retina; also, the most sensitive part of the retina. ΘΚΠ the world > physical sensation > sight and vision > thing seen > [noun] > horopter or fixation point horopter1704 fixation-point1890 the world > life > the body > sense organ > sight organ > parts of sight organ > [noun] > retina > other parts of retina macula1670 fundus1682 yellow spot1798 macula lutea1818 ora serrata1833 corresponding points1841 identical points1841 blind spot1864 fixation-point1890 cyanolabe1958 1890 J. S. Billings National Med. Dict. I Fixation-point.., the point of sight—i.e. the point of which the retinal image is on the centre of clearest vision; the crossing-point in outer space of the lines of regard. 1909 E. B. Titchener Text-bk. Psychol. i. 81 The object first becomes visible as a patch of black;..finally, as it approaches the fixation-point, it appears in its true colour. 1932 S. Duke-Elder Text-bk. Ophthalmol. I. xiii. 580 A position in which the eyes are both directed upon the same fixation point situated straight ahead and infinitely far away. 1950 Sci. News 15 24 Seven different fixation points were discovered, for the following spectral regions. 1971 Nature 11 June 395/1 The subject fixated a central point in the pre-exposure field and after a ‘ready’ signal the stimulus was presented briefly to the left or right of the fixation point. < as lemmas |
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