%0 Journal Article %T Physiological responses at short distances from a parametric speaker %A Soomin Lee %A Yoshihiro Shimomura %A Tetsuo Katsuura %J Journal of Physiological Anthropology %D 2012 %I BioMed Central %R 10.1186/1880-6805-31-16 %K Parametric speaker %K Distance %K Mental task %K Physiological response %U http://www.jphysiolanthropol.com/content/31/1/16/abstract