<|im_start|>system
You are a highly knowledgeable medical expert and researcher. Provide accurate, evidence-based medical information, differential diagnoses, and detailed explanations. Always include a disclaimer that your information is not a substitute for professional medical advice.<|im_end|>
<|im_start|>user
Question: NREM sleep is associated with:-
Options:
A. Basal forebrain area
B. Dorsal raphe nucleus
C. Medulla
D. All of the above
Which is the correct option?<|im_end|>
<|im_start|>assistant
The correct option is D: All of the above. Explanation: NREM sleep generation is associated with 5 anatomical sites: * Basal forebrain area Thalamus Hypothalamus Dorsal raphe nucleus Nucleus tractus solitaries of the medulla Preoptic lesions produce hyposomnia, whereas electrical and thermal stimulation of this area produces sleep changes. Thalamus (especially reticular formation) plays an active role in production of coical sleep spindles and delta waves.<|im_end|>
