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  Patterns that impair discrimination of line orientation in human vision

Wehrhahn, C., Li, W., & Westheimer, G. (1996). Patterns that impair discrimination of line orientation in human vision. Perception, 25(9), 1053-1064. doi:10.1068/p251053.

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https://journals.sagepub.com/doi/10.1068/p251053 (Verlagsversion)
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 Urheber:
Wehrhahn, C1, 2, Autor           
Li, W, Autor
Westheimer, G, Autor
Affiliations:
1Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              
2Former Department Comparative Neurobiology, Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497800              

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 Zusammenfassung: The threshold for detecting a change in orientation away from the vertical of a briefly presented foveal line target is raised when there are immediately
following visual presentations. This masking effect was examined by measuring the capacity of a variety of patterns to act as masks. When patterns were made of
exactly the same number of light pixels, masking was least when they formed random dots and progressively became stronger as they formed lines of decreasing
curvature from full circles to straight lines. The longer the lines, the stronger the masking. Threshold elevation was highest when the masking pattern was spatially
superimposed on the line and was lessened when a large surround area was included, but there was still considerable masking when the interfering patterns were
confined to the surround. By placing masks and test lines in different eyes, or by giving them opposite contrast polarity, almost complete interocular and interpolarity
transfer was demonstrated. Relating these results to anatomical and electrophysiological findings about neurons in the primary visual cortex leads to the conclusion
that the masking effects could have their substrates in interaction between cells in V1.

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 Datum: 1996-09
 Publikationsstatus: Erschienen
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 Ort, Verlag, Ausgabe: -
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 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1068/p251053
BibTex Citekey: 547
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Titel: Perception
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: London : Pion Ltd.
Seiten: - Band / Heft: 25 (9) Artikelnummer: - Start- / Endseite: 1053 - 1064 Identifikator: ISSN: 0301-0066
CoNE: https://pure.mpg.de/cone/journals/resource/954925509369