Neuropsychological functions of hand movements and gestures change in the presence or absence of speech

Helmich, I., Skomroch, H., & Lausberg, H. (2014). Neuropsychological functions of hand movements and gestures change in the presence or absence of speech. Journal of Cognitive Psychology, 26 (7), 740-753, DOI: 10.1080/20445911.2014.961925