Mental activities that differ noticeably from normal waking consciousness are known as ______.

A) hyperconsciousness
B) unconscious states
C) relaxed wakefulness
D) altered states of consciousness

Altered States

Conditions of consciousness that are significantly different from normal waking consciousness, often induced by drugs, meditation, hypnosis, or extreme stress.

Waking Consciousness

State in which thoughts, feelings, and sensations are clear and organized and the person feels alert.

Hyperconsciousness

An increased awareness or preoccupation with one's own thoughts, feelings, or sensory experiences.