Finger (IMAGE) Aalto University Caption Users are most accurate in timing tasks when the touch event is registered when the contact area of the finger is largest. This is the time when maximum kinetic energy is transferred to the touch surface. Credit Aalto University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.