WELLCOME DEPT. OF COGNITIVE NEUROLOGY / SCIENCE PHOTO LIBRARY WELLCOME DEPT. OF COGNITIVE NEUROLOGY / SCIENCE PHOTO LIBRARY
Hallucination in schizophrenia. Coloured Positron Emission Tomography (PET) brain scan of a schizophrenic male patient aged 23 during hallucination. The left side of the brain is seen. Highlighted in orange are areas of brain activity. During hallucination the patient saw coloured heads which spoke to him. Visual (at right) and auditory (upper centre) areas of brain are active confirming the patient has "seen and heard" an hallucination. Schizophrenia is characterised by deluded thought, hallucination and depression. Brain activity (orange) detected by PET scanning, has been superimposed on a white MRI image of the human brain.
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