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| Titel: |
The apparent length of light and dark arcs seen peripherally in rotary motion |
| Auteur: |
Marshall, A. J. Stanley, Gordon |
| Verschenen in: |
Australian journal of psychology |
| Paginering: | Jaargang 16 (1964) nr. 2 pagina's 120-128 |
| Jaar: |
1964-08-01 |
| Inhoud: |
Ansbacher found that a slot, cut as an arc in an opaque disc and lit from behind, appeared shorter when rotated at 1ยท3 r.p.s. than when rotated more slowly or when stationary. In the present study, 48 university students judged whether centrally-fixated, straight lines appeared longer or shorter than rotating or stationary arcs seen peripherally, 20 degrees away from fixation. Arcs and comparison lines were painted white on black surrounds or black on white. Apart from using reflected light, viewing conditions were similar to Ansbacher's and an apparent contraction effect was obtained with light, rotating arcs. Reversing the luminance relations of arc and surround gave a reversed effect: dark arcs tended to appear longer when rotating than when stationary. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 7 van 8 gevonden artikelen
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