ensional (3D) joint kinematics of the hip, 109 knee and ankle joints were recorded using an infrared optical motion capture system (Optotrak, 110 Northern Digital, Ontario, Canada @ 100 Hz) with foot switch data (Koningsberg 4 EFTA00304371 III Instrumentation, Pasadena, CA, @ 100 Hz). Precision manufacture

eye movements and to the external canthi for horizontal eye movements. Hand position was sampled at 100 Hz using an Optotrak motion sensing system (Northern Digital, Inc) that tracked an infrared LED secured to the fingertip with double-sided adhesive tape. Event markers of push button presses and releases were

ensional (3D) joint kinematics of the hip, 109 knee and ankle joints were recorded using an infrared optical motion capture system (Optotrak, 110 Northern Digital, Ontario, Canada Q 100 Hz) with foot switch data (Koningsberg 4 EFTA_R1_02036201 EFTA02693122 111 Instrumentation, Pasadena, CA, @ 100 Hz). Pre