Method and apparatus for environmental setting and information for environmental setting

A signal generator apparatus for generating an environmental setting, the signal generator apparatus comprising:

• a signal generator for generating a signal representing a tropical rain forest environment, the tropical rain forest environment signal being a super perceptual signal including a perceptible first sensory signal that is lower than a perceptual upper limit of what a human being can perceive, and an imperceptible second sensory signal that is higher than the perceptual upper limit of what the human being can perceive, the super perceptual signal including:
• an auditory signal having a density thereof having both a predetermined perceptible frequency band and an imperceptible frequency band which is higher than an auditory perceptual upper limit, the auditory signal having such a complexity that a shape of a spectrum of the auditory signal has the density and power thereof changing in a non-stationary manner in a time region at least ranging from 100 milliseconds to 0.5 milliseconds as compared with an auditory signal of the perceptible first sensory signal being stationary in a predetermined temporal length;
• and
• an image signal having a spatial density of a shape thereof such that a visual stimulus spatial density of the shape of the image signal is higher than a predetermined spatial visual resolution threshold of what the human being can view, the image signal having such a complexity that a spatial fractal dimension of the shape of the image signal is greater than a spatial fractal dimension of a shape of an image signal of the perceptible first sensory signal;
• and
• an applying device
• for applying the signal generated by the signal generator to the human being to activate a reward system of a brain of the human being, the reward system comprising a deep portion of the brain including a brain stem, and a monoaminergic system related to the deep portion of the brain, and
• for collectively activating the reward system and a biologic control system that undertakes adjustment of an essential part of vital activity including an autonomic nervous system, an endocrine system and an immunity system, the biologic control system including a hypothalamic area and the brain stem to set the human being substantially in the tropical rain forest environment,
• thereby realizing an environment suitable for the human being's brain.