The acupoint on the back of the thumb is LI4 (Large Intestine 4), also known as Hegu, located on the fleshy web between the base of the thumb and index finger, and Spatial patterns of cutaneous vibration during whole hand haptic interactions PNAS The effect of high frequency cutaneous vibration on different inputs subserving detection of joint movement Experimental Brain Research Springer Nature Link Wearing a gold ring on the wrong finger can actually create delays & unexpected challenges in your life In astrology, every finger is connected to a specific planet and gold carries Thumb to Finger Gesture Recognition Using COTS Smartwatch Accelerometers Proceedings of the 23rd International Conference on Mobile and Ubiquitous Multimedia New VibWrite System Uses Finger Vibrations to Authenticate Users