抄録
Interactions between regional landscape and sound are investigated in terms of subjects’ brain wave properties, i.e., α wave power spectrum and frequency fluctuation index of brain wave. The landscape samples consist of sea, buildings, crowds, trees, flowers, streamlet, vehicular traffic flow and residential area while the sound samples are made up of crowds sound, insect chirpings, rustling sound of leaves, wave sound, stream murmurings, bird chirpings and supersonic. It is revealed that (1) most of the best combinations of landscape and sound include natural landscape and sound whereas the worst combinations are associated with artificial environments, (2) best(worst) combinations determined via fluctuation index are composed of the landscape and sound which are evaluated as bests(worsts) at landscape only or sound only stimulus tests, (3) based on theα wave power spectrum, some of the best combinations include the landscapes and sounds which are evaluated low at the single stimulus tests and also some worst combinations include the stream murmuring sound or wave sound which are highly ranked at the sound only tests, (4) since supersonic appears in many worst combinations, it is likely to bring about unpleasant effects on human psychology.
