What we think and how we feel in our altered states of awareness is the subject area of?

What we think and how we feel in our altered states of awareness is the subject area of?
(a) Humanistic psychology
(b) Transpersonal psychology
(c) Gestalt psychology
(d) Cognitive development
✅ Answer: (b) Transpersonal psychology
Explanation: Transpersonal psychology explores altered states of consciousness, spirituality, and higher levels of human experience.