Consciousness - an alert cognitive state in which you are aware of yourself & your situation.
Continuum of Consciousness (different states):
Controlled processes - full awareness required
Automatic processes - require little awareness
Daydreaming - low level of awareness
Altered states of consciousness - meditation, psychoactive drugs, hypnosis, or sleep deprivation
Sleep - deepest stage of sleep borders on being unconsciousness
Dreaming -
Unconscious (Freud's theory) - no voluntary recall of this repressed info.
Implicit or nondeclarative memory - learning without awareness
Unconscious - total lack of sensory awareness