In non-REM sleep, movement is unlikely because the excitatory level of the motor system is too low for movement to be commanded. ... (Hammon 5) According to this view, REM serves as a kind of sentinel, keeping the nervous system tuned up and ready to respond to external threats.... In the mid-1960's, a psychiatrist named Howard Roffwarg, and Columbia University in New York, suggested that nervous activity during REM sleep helps to stimulate the developing brain in very young children, thus promoting the growth of neural connections necessary for learning. In adults, according to Roffwa...

• Word Count: 2618
• Approx Pages: 10
• Has Bibliography
• Grade Level: High School

Consciousness: a definition A. Consciousness and Control Nature of consciousness Degrees of consciousness Modes of consciousness Natural state of consciousness o Sleep o Dream Altered state of consciousness o Meditation o Hypnosis Psychoactive Drugs B. Conditioning, Learning and Memory Classical conditioning Operant conditioning C. Remembering and Forgetting Various act of remembering Attitudes that affect remembering Stages of memory o Short term memory o Long term memory Retrieval Process and improving memory A. Consciousness and Control Consciousness ...

• Word Count: 3290
• Approx Pages: 13

The other type of sleep apnea is Central Sleep Apnea, this is when the airway is not blocked but the brain fails to send signals to the muscles to breathe. ... It is believed that if one part of your body is sick or not working properly your entire system is thrown off and cause dysfunction throughout. ...

• Word Count: 3149
• Approx Pages: 13
• Has Bibliography
• Grade Level: High School