rubb - scin
- rubber hand illusion
- Rubin face
- Rubin vase
- Rubin's face
- Rubin's figure
- Rubin's vase
- Rubin's vase-face illusion
- rudimentary hallucination
- Rümke's characterization of hallucinations and illusions
- Saint Birgitta
- Saint Teresa of Jesus
- salamander brandy and hallucinations
- salicylate-induced hallucination