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APPARENT SIZE AS A DETERMINER OF FIGURAL AFTER‐EFFECTS. II
Author(s) -
Kolehmainen Kyösti
Publication year - 1968
Publication title -
scandinavian journal of psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.743
H-Index - 72
eISSN - 1467-9450
pISSN - 0036-5564
DOI - 10.1111/j.1467-9450.1968.tb00540.x
Subject(s) - psychology , stimulus (psychology) , fixation (population genetics) , apparent size , audiology , social psychology , chemistry , cognitive psychology , medicine , biochemistry , gene
K olehmainen , K. Apparent size as a determiner of figural after‐effects. II. Scand. J. Psychol . 1968, 9, 237—240.—A brightly illuminated circle (TF) was flashed at distance d . The subject projected the after‐image of TF on a screen placed at distance d/2, and fixated the after‐image, which appeared to be half the size of the stimulus figure. Then TF and a comparison circle (CF) of equal size were shown, faintly illuminated, at distance d . A clear‐cut figural after‐effect occurred TF was perceived to be larger. It is suggested that TF appeared dimmer after the fixation and was perceived to be farther away than CF. As a consequence of this TF looked larger.