Final answer:
Emergence delirium refers to a condition of abnormal postoperative behaviors and is often linked to residual effects of gas anesthetics, while psychological dependence involves a craving for drugs.
Step-by-step explanation:
Abnormal postoperative behaviors sometimes referred to as emergence delirium are often attributed to residual gas anesthetics. Emergence delirium is a phenomenon wherein patients exhibit confusion, agitation, and sometimes hallucinations following anesthesia. The related term, psychological dependence, refers to drug craving and is distinct from emergence delirium. General anesthetics elicit a state of general anesthesia that includes key reversible effects such as immobility, analgesia, amnesia, unconsciousness, and reduced autonomic responsiveness to noxious stimuli.