The Role of Linguistics Habits and Proprioception Sense on Mental Number Line

The present study investigated the relationship between linguistic styles and numerical representation as evidenced by the Spatial Numerical Association of Response Codes effect, which smaller (larger) number is respond faster with left (right) hand. In Study 1, sixteen participants did numerical judgments by pressing left-or-right side keyboard button with digits presented randomly on three sides of the screen. SNARC effect was found to be significant whereas no significant main effect of number placement was found. In Study 2, fifteen participants reacted with moving the joystick to leftward or rightward with one hand only. No SNARC effect was found as well as the interaction effect. These results suggested the role of proprioception sense in the conceptualization of mental number line.