Poggendorffn.

Brit.

/ˈpɒɡəndɔːf/, U.S.

/ˈpɑɡənˌdɔrf/

Origin: Formed within English, by conversion. Etymon: English Poggendorff.

Etymology: < the name of J. C. Poggendorff (1796–1877), German physicist and chemist. Poggendorff described this illusion in Ann. der Physik u. Chem. (1860) 110 502.

attributive. Designating or relating to (a figure illustrating) an optical illusion in which the two ends of a straight line whose central portion is obscured by a rectangular strip crossing at an angle seem not to be in line; esp. in Poggendorff figure, Poggendorff illusion.

ΘΚΠ

the world > physical sensation > sight and vision > thing seen > optical illusion > [noun] > an optical illusion > optical distortions

refraction1698

suppression1702

aerial perspective1704

irradiation1834

double image1880

barrel distortion1889

pincushion distortion1892

Poggendorff illusion1898

Ponzo illusion1942

pincushioning1947

space myopia1962

pincushion1968

Müller-Lyer1972

1897 Mind 6 441 If two vertical parallels are cut obliquely by a transversal, itself not continued between the parallels, the two parts of the transversal appear not to belong together (Poggendorff's figure).]

1898 Psychol. Rev. 5 540 The Poggendorff illusion... This illusion is due to the fact that the two ends of the transversal, sundered by the vertical strip, are made to belong to two different systems, each suggesting its own perspective interpretation and being under no necessity..of appearing as parts of a continuous line.

1898 Science 9 Dec. 819/1 The vertical strip of the Poggendorff figure serves principally to sunder the two ends of the transversal.

1935 H. A. Carr Introd. Space Perception xi. 392 In the Poggendorff figure, the illusion decreases with the length of the interrupted line.

1976 Nature 1 Apr. 397/2 (caption) The Poggendorff illusion in geological contexts; the illusory perceptual data are more likely to mislead when they favour an investigator's geological hypothesis than when they do not.

1996 M. J. Morgan in V. Bruce Unsolved Mysteries of Mind ii. 48 One contribution to the Poggendorff effect may be neural blur in circular filters, similar to those that we considered in relation to the ‘pyramid illusion’.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	poggendorff
释义	Poggendorffn. Brit. /ˈpɒɡəndɔːf/, U.S. /ˈpɑɡənˌdɔrf/ Origin: Formed within English, by conversion. Etymon: English Poggendorff. Etymology: < the name of J. C. Poggendorff (1796–1877), German physicist and chemist. Poggendorff described this illusion in Ann. der Physik u. Chem. (1860) 110 502. attributive. Designating or relating to (a figure illustrating) an optical illusion in which the two ends of a straight line whose central portion is obscured by a rectangular strip crossing at an angle seem not to be in line; esp. in Poggendorff figure, Poggendorff illusion. ΘΚΠ the world > physical sensation > sight and vision > thing seen > optical illusion > [noun] > an optical illusion > optical distortions refraction1698 suppression1702 aerial perspective1704 irradiation1834 double image1880 barrel distortion1889 pincushion distortion1892 Poggendorff illusion1898 Ponzo illusion1942 pincushioning1947 space myopia1962 pincushion1968 Müller-Lyer1972 1897 Mind 6 441 If two vertical parallels are cut obliquely by a transversal, itself not continued between the parallels, the two parts of the transversal appear not to belong together (Poggendorff's figure).] 1898 Psychol. Rev. 5 540 The Poggendorff illusion... This illusion is due to the fact that the two ends of the transversal, sundered by the vertical strip, are made to belong to two different systems, each suggesting its own perspective interpretation and being under no necessity..of appearing as parts of a continuous line. 1898 Science 9 Dec. 819/1 The vertical strip of the Poggendorff figure serves principally to sunder the two ends of the transversal. 1935 H. A. Carr Introd. Space Perception xi. 392 In the Poggendorff figure, the illusion decreases with the length of the interrupted line. 1976 Nature 1 Apr. 397/2 (caption) The Poggendorff illusion in geological contexts; the illusory perceptual data are more likely to mislead when they favour an investigator's geological hypothesis than when they do not. 1996 M. J. Morgan in V. Bruce Unsolved Mysteries of Mind ii. 48 One contribution to the Poggendorff effect may be neural blur in circular filters, similar to those that we considered in relation to the ‘pyramid illusion’. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1898
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