Bryan's psychiatrist suggested that he learn to relax to relieve himself of his stress. He teaches Bryan sit quietly and concentrate on hearing his heartbeat. Whenever his heart is beating fast, Bryan visualizes himself floating in the air. When his heart begins to beat slower, he visualizes himself settling softly on the ground. This technique of teaching relaxation is know as
Group of answer choices
Cognitive appraisal
Meditation
Progressive muscle relaxation
Biofeedback