The Poggendorff Illusion and estimates of transverse extent.

Finlay, DC and Caelli, Terrence 1975, The Poggendorff Illusion and estimates of transverse extent., Perceptual and motor skills, vol. 41, no. 1, pp. 143-148, doi: 10.2466/pms.1975.41.1.143.

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Title The Poggendorff Illusion and estimates of transverse extent.
Author(s) Finlay, DC
Caelli, TerrenceORCID iD for Caelli, Terrence
Journal name Perceptual and motor skills
Volume number 41
Issue number 1
Start page 143
End page 148
Total pages 6
Place of publication United States
Publication date 1975-01-01
ISSN 0031-5125
Keyword(s) Social Sciences
Psychology, Experimental
Summary The underestimation of transverse extent relative to longitudinal extent, in the Poggendorff Illusion, was tested by varying oblique line orientation, interparallel line distance, and presence or absence of obliques. 20 subjects made estimates of the transverse extent on both a longitudinal and transverse extent. The results indicated that, although underestimation was found for some stimulus conditions, overestimation was found fot others. It was argued that even though presence of obliques affected judgmental error the longitudinal-transverse illusion could not form a basis for the Poggendorff Illusion.
Language eng
DOI 10.2466/pms.1975.41.1.143
Indigenous content off
Field of Research 1106 Human Movement and Sports Sciences
1701 Psychology
1702 Cognitive Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
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