This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous system, Subject name: Physiology
In hippocampus EEG waves are 
Select and explain. 
A. Alpha, B. Beta, C. Delta, D. Theta
D: Theta
Answer: D: Theta 
Explanation: Theta brainwaves occur most often in sleep but are also dominant in deep meditation. Theta is our gateway to learning, memory, and intuition. In theta, our senses are withdrawn from the external world and focused on signals originating from within Ref: guyton and hall textbook of medical physiology 12 edition page number818,819,820