Fig. 1
Representations of active manipulation based on graph analysis of digital glove data. These representations for left and right hand manipulation show three symmetrical modules: (i) module 1 (green) encompasses PIP joints of finger 2 to 5 and IP joint of thumb, (ii) module 2 (blue) encompasses MCP joints of fingers 2 to 5 and (iii) module 3 (red) encompasses MCP and CMC joints of thumb and palm arch. The upper row shows the interrelation of finger joints exhibiting positive weights, suggesting synchrony of joint movements within the modules. The lower row shows the interrelation of finger joints exhibiting negative weights, suggesting asynchrony among the modules. The thickness of connections between joints reflects the relative weight of the interrelations. Note asynchrony between PIP finger joints and IP thumb joint, determining extent of dynamic finger movements, is reduced in the left hand. (Networks were illustrated using Gephi (Release 0.10.1). Hands of the first author are depicted.)
