Yoshiyuki Tanaka Toshio Tsuji Directional Properties of Human Hand Force Perception in the Maintenance of Arm Posture. 933-942 2007 ICONIP (1) http://dx.doi.org/10.1007/978-3-540-69158-7_96 conf/iconip/2007-1 db/conf/iconip/iconip2007-1.html#TanakaT07