Final answer:
Relaxation training aims to decrease autonomic arousal by engaging the parasympathetic nervous system, reducing stress and sympathetic 'fight or flight' responses. The correct option is b.
Step-by-step explanation:
Relaxation training procedures are primarily used to decrease autonomic arousal. This includes techniques such as the relaxation response technique developed by Herbert Benson in the 1970s, which aims to reduce stress by reducing sympathetic arousal.
The sympathetic nervous system is associated with the 'fight or flight' response, which can involve effects such as pupil dilation, increased heart rate, and increased sweat gland output.
In contrast, relaxation techniques engage the parasympathetic nervous system, which allows the body to 'rest and digest' and is responsible for slowing the heartbeat and relaxing the body. Thus, the correct answer in relation to the goal of relaxation training procedures is b. decrease autonomic arousal.