Final answer:
Exaggerated yawning can be used as a warm up exercise in vocal psychotherapy to improve vocal abilities.
Step-by-step explanation:
In vocal psychotherapy, exaggerated yawning can be used as a warm up exercise. This is because yawning helps to stretch and relax the muscles involved in vocal production, including the diaphragm and larynx. By performing exaggerated yawns, individuals can increase their awareness of and control over these muscles, ultimately improving their vocal abilities. The idea behind this technique is that exaggerated yawning can help release tension in the jaw, throat, and vocal cords, promoting relaxation and a more open and free vocal expression. It is a physical exercise that can be incorporated into the warm-up phase of a vocal psychotherapy session.