Subjectively experienced sensations in the absence of an appropriate stimulus, but which are regarded by the individual as real. They may be of organic origin or associated with MENTAL DISORDERS.
    

concept

Hallucinations

 A tempestuous sea with a man chasing a boat.

Ezekiel has a vision of angels and spheres with eyes coasting along the thunderstruck sea. Etching by R. Pranker, 176-, after B. Picart.

Du hachisch et de l'aliénation mentale. Études psychologiques / Par J. Moreau (de Tours).

The woman clothed with the sun is attacked by a seven-headed dragon; her child is ejected up to God: representing the 12th Book of Revelation. Engraving.

The blot upon the brain : studies in history and psychology / [William W. Ireland].

Festschrift zum 75-jährigen Jubiläum der Gesellschaft practischer Aerzte zu Riga von der städtischen Irrenheil- und Pflegeanstalt Rothenberg.

Théorie physiologique de l'hallucination / par A. Ritti.

Theorie physiologique de l'hallucination / par Ant. Ritti.

Acute confusional insanity / by Conolly Norman.

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Hallucinations and illusions

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The blot upon the brain : studies in history and psychology / [William W. Ireland].

Festschrift zum 75-jährigen Jubiläum der Gesellschaft practischer Aerzte zu Riga von der städtischen Irrenheil- und Pflegeanstalt Rothenberg.

Théorie physiologique de l'hallucination / par A. Ritti.

Theorie physiologique de l'hallucination / par Ant. Ritti.

Acute confusional insanity / by Conolly Norman.