For children, emotional facial expressions could reveal whether they had a good night's sleep. Researchers found emotional expressivity following sleep restrictions could also forecast later life social problems.
A new rodent study uncovers a neural circuit in the brain that appears to govern pain-induced anhedonia. Altering the activity of this circuit restored motivation in pre-clinical models of pain.
Studying 50 species of primates, researchers found 80% of the species studied performed corpse carrying behaviors as a way to process grief. Following the loss of an infant, some primate mothers carried the body for up to four months following death.
When you've acted in an uncooperative or untrustworthy way, the way you smile could either help heal or hinder social relationships. Those whose smiles reflected reward, or a signal that they were happy, or a smile of dominance, which reflects a feeling of superiority, appeared to be untrustworthy and unlikely to change their deceptive nature. However, a smile of affiliation was perceived as an attempt to make amends, restoring levels of trust.
Men who are intoxicated with alcohol have impairments when it comes to correctly assessing emotional facial cues in others. Researchers speculate the findings may explain why alcohol use is often associated with harmful interpersonal and social interactions, such as aggression and domestic violence.
The habenula relays external information, such as sight and smell, along with internal states associated with emotion and learning to brain regions that govern adaptive behaviors.
Self-reported engagement in the narrative of a TV show synchronizes across people at the same points in the storyline. The synchronization was driven by the emotional content of the narrative. Neuroimaging reflected the similarities in brain activity synchronization at the same points of the story across the subject participants.