It is proposed that human beings can suffer from several kinds of visual hallucinations based on different pathomechanisms simultaneously or in an intercurrent fashion. The authors review several types of visual hallucinations in relation to their case study. Included are the phantom vision, the irritative and the release type hallucinations according to Cogan, and the entoptic images.
References
1.
EsquirolJ.E.D.Mental maladies: a treatise on insanity.New York, London: Hafner Publishing,1965: 93.
2.
JaspersK.General psychopathology.Manchester University Press, 1962: 66.
WestL.J.Hallucinations.New York: Grune and Stratton, 1962: 281.
5.
JaspersK.General psychopathology.Manchester University Press, 1962: 69.
6.
CritchleyM.Acquired anomalies of colour perception of central origin.Brain1965; 88 Nov. (Part 4): 712.
7.
JungR.Visual perception and neurophysiology. Handbook of sensory physiology, Vol. VII/3 part A. Berlin, Heidelberg, New York: Springer Verlag, 1973: 10.
