Realization of comfortable space using brainwave signals

It is difficult to define a comfortable space for people. This is partly because comfort relates to many attributes specifying a space, partly because all people have different preferences and also because even the same person changes his or her preference according to the state of health, body conditions, working state, and so on. Various parameters and attributes should be controlled in order to realize such a comfortable space according to the database of past usages. Information obtained from human bodies such as temperature, blood pressure, alpha waves, etc., can be employed to adjust the space to the best condition. The objective of the paper is to present the possibility that a space is able to be adjusted to a human condition based on human brainwaves.