Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
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A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
JND values were calculated according the laterality of the visual cues (left graphic, bilateral cues; right graphic, unilateral cue) and posture of the hands (blue bars, uncrossed; red bars, crossed). Significant effects are indicated with an asterisk.
