We may tend to think that human understand current states of self-body and external environments, and then consciously control our limbs according to those states. However, dominant part of actual skilled movements are controlled unconsciously. We are trying to reveal those implicit sensorimotor control mechanisms to understand the brain processing for skillful motor control. By inflicting different postural stability and/or noisy visual motion conditions, we investigated the adaptability of voluntary and reflexive responses to visual motion stimuli, and found that only reflex responses can be adjusted suitably to the different situations. This suggests that unconscious processing would be smarter than conscious processing for a particular condition. By understand the mechanisms of brain processing for sensorimotor control, we will be able to designe more sophisticated communication and man-machine interface, and novel training method for athletes.
/ Sensory and Motor Research Group, Human and Information Science Laboratory