SLEEP NEUROPHYSIOLOGY; The Nature of the Wakefulness Stimulus for Breathing (J. Orem); UPPER AIRWAY NEUROPHYSIOLOGY; Reflex Induced Apneas (B. Thach, et al.); UPPER AIRWAY MUSCLES; Inspiratory Activation of the Masseter (P. Suratt & D. Hollowell); VENTILATORY AND UPPER AIRWAY RESPONSE TO LOADING DURING SLEEP; Regulation of Ventilation and Respiratory Muscle Functions in NREM Sleep (J. Dempsey, et al.); VENTILATORY INSTABILITY DURING SLEEP; Neural Mechanisms in the Genesis of Sleep Apnea (A. Pack, et al.); UPPER AIRWAY MUSCLES, PERIODIC BREATHING, AND APNEA; Differential Activation of Respiratory Muscles During Wakefulness and Sleep (D. Hudgel); UPPER AIRWAY MECHANICS AND IMAGING; The Modulation of Upper Airway Critical Pressures During Sleep (P. Smith, et al.); CONSEQUENCES OF SLEEP APNEA; Ventilatory Control in Sleep Apnea: A Search for Brain Neurochemical Defects (C. Sullivan, et al.); CONSEQUENCES OF SLEEP APNEA; Humoral Correlates of Sleep Apnea: Eruthropoietin and Hypoxemia (C. Cahan, et al.); CARDIOVASCULAR FUNCTION IN SLEEP APNEA; Hemodynamics in Sleep Apnea (T. Podszus); TREATMENT OF SLEEP DISORDERED BREATHING; Surgery for Obstructive Sleep Apnea (A. Sher); Index.