People are fascinated by the topic of déjà vu, or the feeling that one is reliving some prior experience. The déjà vu phenomenon has been investigated by psychologists throughout the history of the discipline, and a number of theories — neurological, supernatural, pathological, and otherwise — have been proposed to explain its presumed occurrence.

A team of Dutch researchers, led by Herman Sno, have investigated the topic at length in recent years. Sno and his colleagues argue that the déjà vu experience can be examined using the hologram as a model. In holographic photography, each piece of an image contains the full information necessary to reproduce the image, a property that gives holographic images their three-dimensional qualities. T ...

If emotions can make you sick, if a belief that you will die can kill you (as in voodoo deaths), and if a sugar pill that you believe is a powerful drug can take away your pain, can a belief that you can bring about your own recovery help you to recover?

Even with acceptance of the role of emotional factors in both illness and recovery, the assumption has persisted that emotional factors work on an unconscious level, and because of this they are not subject to voluntary control. Most of us still see illness as something that happens to us.

Dr. Carl Simonton, chief of radiation at Travis Air Force Base, questioned this assumption. He was impressed by demonstrations that people could learn to control autonomic processes through biofeedback and ...