The process whereby weaker neural connections are eliminated and stronger neural connections are further enhanced is called

Which of these is NOT one of the early sedative-hypnotics used in medicine?

A. chloral hydrate B. paraldehyde C. butyrate D. bromide salts

Which of the following is the term used to describe a period of sadness that is not accompanied by any related symptoms?

depressed mood depressive syndrome major depressive disorder pseudo-depression