Proponents of Neuro-Linguistic Programming (NLP) claim that certain eye-movements are reliable indicators of lying. According to this notion, a person looking up to their right suggests a lie whereas looking up to their left is indicative of truth telling. Despite widespread belief in this claim, no previous research has examined its validity.
The Eyes Don’t Have It: Lie Detection and Neuro-Linguistic Programming by Richard Wiseman et al.
They conducted 3 experiments finding no evidence to support the claim that certain eye-movements can be used to say if someone is lying.
This is in line with findings from a considerable amount of previous work showing that facial clues (including eye movements) are poor indicators of deception.
(via scipsy)