Ingroup-Outgroup Bias in Contagious Yawning by Chimpanzees Supports Link to Empathy

Racial Bias Reduces Empathic Sensorimotor Resonance with Other-Race Pain

(2010) Alessio Avenanti et al.   CURRENT BIOLOGY

Yawning as a Stereotyped Action Pattern and Releasing Stimulus

(2010) Robert R. Provine   ETHOLOGY

Neural basis of extraordinary empathy and altruistic motivation

(2010) Vani A. Mathur et al.   NEUROIMAGE

Do dogs (Canis familiaris) show contagious yawning?

(2009) Aimee L. Harr et al.   ANIMAL COGNITION

Do You Feel My Pain? Racial Group Membership Modulates Empathic Neural Responses

(2009) X. Xu et al.   JOURNAL OF NEUROSCIENCE

Contagious yawning in gelada baboons as a possible expression of empathy

(2009) E. Palagi et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Computer animations stimulate contagious yawning in chimpanzees

(2009) M. W. Campbell et al.   PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES

Dogs catch human yawns

(2008) R. M Joly-Mascheroni et al.   Biology Letters