Researchers put forward a comprehensive model outlining the conditions that may give rise to the vivid mental phenomena that ...

Confocal images of cells in an area of the brain stem called the PPT show expression of the neurotransmitter acetylcholine (red) and of a light responsive protein (green). The merged image on the ...

Dreams occur during REM (Rapid eye movement) sleep, if we wake up before we ... High levels of neurotransmitters such as ...