Additivity of cues in perception of verticality

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Visual cues affecting perception of verticality in different situations were combined within a single percept and shown to be additive. When the independent effects of the Zollner illusion cues and the rod-and-frame test cues affected the perception of verticality in the same direction, the total illusion was enhanced; when these cues counteracted each other, the illusion was attenuated by an equal magnitude.

Original languageEnglish
Pages (from-to)1327-1332
Number of pages6
JournalPerceptual and Motor Skills
Issue number3 II
StatePublished - 1 Jan 1977
Externally publishedYes


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