Schizophrenia 6 human 6 pedunculopontine tegmental nucleus 6 Animals 4 Bipolar disorder 4 Calcium/calmodulin-dependent protein kinase II 4 Cyclic adenosine monophosphate 4 Humans 4 Neuronal calcium sensor 4 Pedunculopontine nucleus 4 REM sleep 4 Reticular activating system 4 animal 4 awareness 4 calcium channel N type 4 calcium channel P type 4 calcium channel Q type 4 consciousness 4 gamma rhythm 4 physiology 4 schizophrenia 4 wakefulness 4 Alzheimer's disease 2 Arousal 2 Article 2 Bottom-up gamma 2 Calcium Channels, N-Type 2 Calcium channels 2 Cerebral Cortex 2 Coma 2