QUALITY OF BIOFEEDBACK IN THE LOOP OF PACED BREATHING AND HEART RATE VARIABILITY PARAMETERS IN HEALTHY VOLUNTEERS WITH PSYCHASTHENIC PERSONALITY TYPE IN REPEATED SERIES OF SESSIONS Journal title: Psychiatry, Neurology and Medical Psychology Authors: A Ruban, Suzanna Belal, O Martynenko, Mykola Yabluchanskyi Subject(s):
