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Reflex. This method for the consciousness to project itself outside the human body with lucidity, is ideal for those who are able to sleep sitting in an armchair. It has its basis in the meticulous, narcissistic study of oneself. It is also based on self-knowledge or on the self-image contemplated in a flat reflective surface. A mirror is preferred, However, the surface of clean still water, polished metal, or a window can also be used with equal success.


There are several types of biofeedback:

Skin resistance biofeedback (GSR Galvanic Skin Response) is a measure of how relaxed you are, which changes based on your overall mood and emotions.

A sensor is placed on your hand, you hear a tone that increases in pitch when your emotions or mood becomes more tense, and decreases when you are relaxing.

Muscle tension biofeedback measures how tight a particular muscle is. Relaxing your forehead can help reduce headaches, release jaw tension, and upper shoulder tightness. You wear a pair of headphones with a band containing sensors that goes across your forehead. When the muscles in your forehead let go, then the tone that you are listening to decreases.

Brainwave biofeedback measures the quality of your brainwaves. Improving the quality of your brainwaves helps people with learning and concentration, reduce mental clutter, reach deeper states of relaxation faster, and to improve the quality of sleep.

Two electrodes are placed on your scalp. Using a computer interface, you can see your brainwaves on the screen, which appear as wavy lines, much like ocean waves. When the waves are close together, it means that you are alert. When they are further apart (slower), that means you are relaxing into deeper states of alpha, or creative visualization (theta).

When you see irregular waves, the quality of that particular brainwave state is not very good. When the waves become smooth and regular, you are able to sustain focus within that particular brainwave state.

Heart Rate Variability biofeedback measures how your heart responds to emotional, mental, and physical stresses, and its ability to bounce back to a relaxed and better functioning state. It helps for general relaxation, and cardio vascular distress.

You wear a finger sensor, and a computer interface allows you to see your heart rhythms on the screen, which appear like ocean waves, or lines that move up and down. Irregular, ever-changing waves mean that things easily upset you, whereas smooth waves mean that you are able to stay calm in stressful situations.

Skin temperature biofeedback measures the amount of blood flow beneath the skin. The warmer the temperature, the greater the degree of relaxation in that area which improves circulation for healing.

You place the electrode wherever you want to increase blood flow, such as on your hand. A digital thermometer then tells you if that area is getting warmer, which means there is more blood flowing through that area of your body.

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