The subjective state of being currently aware of something either within oneself or outside of oneself.

Stage 1 - Irregular waves produced in light sleep
Stage 2 - Sleep spindles
Stage 3 - Delta waves appear
Stage 4 - purely Delta waves

A series of thoughts, images, and sensations occurring in a person's mind during sleep.

Anything that reacts to the central nervous system with a chemical reaction

Allows information to be collected and saved with little or no conscious effort.

The daily patterns roughly following the 24-hour cycle of daylight and darkness

REM

React the opposite of depressants, ramping up energy levels and keeping you up

One can be asleep and still be aware.

Brain waves that indicate a relaxed, drowsy state

90 minutes into sleep

Lower your heart rate and ability to think

Founded psychology as a science based on exploring consciousness and its content.

Brain waves that indicate an alert, awake state

4-6 dreams

Highly addictive substance that contains nicotine

Insisted that the science of psychology should restrict itself to the study of observable behaviors.

Brain waves that indicate a move to deeper sleep and a further loss of consciousness.

1-2 hours

Happens when an addict stops taking drugs for one reason or another