ENDOGENOUS OPIATES - 1994

This article is the 17th installment of our annual review of research concerning the opiate system. It includes papers published during 1994 involving the behavioral, nonanalgesic, effects of the endogenous opi ate peptides. The specific topics covered this year include stress; to lerance and dependence; eating; drinking; gastrointestinal, renal, and hepatic function: mental illness and mood; learning, memory, and rewa rd; cardiovascular responses; respiration and thermoregulation; seizur es and other neurological disorders; electrical-related activity; gene ral activity and locomotion; sex, pregnancy, and development; immunolo gical responses; and other behaviors.