What is a key characteristic of thermal biofeedback?

Thermal biofeedback is primarily focused on measuring skin temperature, which is a key physiological indicator of the body's stress response and overall relaxation state. This technique involves using electronic monitoring devices to provide real-time information about the skin temperature, allowing individuals to learn how to regulate their body temperature through relaxation techniques. By becoming aware of skin temperature changes, individuals can develop skills to improve their physical and emotional well-being, particularly in managing stress and anxiety.

The other options, while interesting, do not accurately describe the primary function of thermal biofeedback. For instance, muscle relaxation is typically associated with different forms of biofeedback, focusing on muscle tension rather than temperature regulation. The references to enhancing telepathic abilities or increasing psychokinetic strength fall outside the realm of scientific biofeedback practices and do not relate to the physiological measurements used in thermal biofeedback therapy.