RT and MT were measured using a reaction timer
apparatus (Lafayette Instruments Co., model 63017). The
apparatus comprises of a control device and two switches
(start and stop button, placed 50 cm sidewise). The participant was pressing the start button with her dominant
index finger from a standing position. A standby visual
signal (LED lighting) was shown, and after an auditory
stimulus at a random period of 2–4 sec the participant
released the start button and moved her finger to touch the
stop button. The time between the sound stimulus and
release of the start button defined the RT, whereas the
time between the initiation of movement and pressing the
stop button defined the MT. Participants completed one
practice attempt and three trials on the day of testing with
30 sec rest periods (Cronbach’s Alpha ICC RT: a = 0.79;
MT: a = 0.80).