Errors by 5 paranoid schizophrenics were compared with those of 5 simple schizophrenics on the Oppel-Kundt and the Müller-Lyer illusions. The Oppel-Kundt illusion was greater among those paranoid schizophrenics.
Get full access to this article
View all access options for this article.
References
1.
DavisD.CromwellR. L.HeldJ.Size estimation in emotionally disturbed children and schizophrenic adults. Journal of Abnormal Psychology, 1967, 72, 395–401.
2.
FlavellJ. H.The developmental psychology of Jean Piaget.New York: Van Nostrand, 1963.
3.
GardnerR. W.HolzmanP. S.KleinG. S.LintonH. B.SpenceD. P.Cognitive control: A study of individual consistencies in cognitive behavior. Psychological Issues, 1959, 1, No. 4.
4.
GaudreauJ.LavoieG.DelormeA.La perception des illusions de Müller-Lyer et d'Oppel-Kundt chez les déficients mentaux. Canadian Journal of Psychology, 1963, 17, 259–263.
5.
HaleyG. A.Relations among chronicity, diagnosis, premorbid adjustment, defensiveness and two measures of perceptual scanning. Perceptual and Motor Skills, 1971, 33, 1163–1170.
6.
PayneR. W.Cognitive abnormalities. In EysenckH. J. (Ed.), Handbook of abnormal psychology.New York: Basic Books, 1960. pp. 193–261.
7.
PiagetJ.Les mécanismes perceptifs.Paris: Presses Universitaires de France, 1961.
8.
PiagetJ.OsterriethP. A.Recherches sur le développement des perceptions. XVII. L'évolution de l'illusion d'Oppel-Kundt en fonction de l'âge. Archives de Psychologie, Genève, 1953, 34, 1–38.
9.
SilvermanJ.Scanning-control mechanism and “cognitive filtering” in paranoid and nonparanoid schizophrenia. Journal of Consulting Psychology, 1964, 28, 385–393.
10.
SilvermanJ.Variations in cognitive control and psychophysiological defense in the schizophrenias. Psychosomatic Medicine, 1967, 29, 225–245.
11.
WeckowiczT. E.BlewettD. B.Size constancy and abstract thinking in schizophrenic patients. Journal of Mental Science, 1959, 105, 909–934.
12.
WeckowiczT. E.WitneyG.The Müller-Lyer illusion in schizophrenic patients. Journal of Mental Science, 1960, 106, 1002–1007.
