2D:4D digit ratio + hand shape linked with Big Five dimension Extraversion!

December 6, 2012

 After various studies in the past had already suggested that 2D:4D digit ratio could be linked with the Big Five personality dimension Extraversion / Introversion, a new experimental study shows how the finger ratio combined with hand shape produces highly significant results.

The picture above displays a schematic presentation of the results: e.g. the ‘+’ and ‘-‘ signs show the proportional tendencies in the hands of Extraverts and Introverts. Details regarding the underlying results are presented in the article:

Extraversion associated with 2D:4D digit ratio, finger length & hand shape!

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