When Qi Wang, PhD, began her graduate studies at Harvard, she thought she had a broad knowledge of psychology research. After all, she had graduated with high honors in psychology from Peking University. But as she began working with her new advisers, Wang realized that she'd never even heard of their research area: autobiographical memory.
Human cooperation is an evolutionary puzzle. Unlike other creatures, people frequently cooperate with genetically unrelated strangers, often in large groups, with people they will never meet again, and when reputation gains are small or absent. These patterns of cooperation cannot be explained by the nepotistic motives associated with the evolutionary theory of kin selection and the selÆsh motives associated with signalling theory or the theory of reciprocal altruism. Here we show experimentally that the altruistic punishment of defectors is a key motive for the explanation of cooperation. Altruistic punishment means that individuals punish, although the punishment is costly for them and yields no material gain. We show that cooperation nourishes if altruistic punishment is possible, and breaks down if it is ruled out
Diseases of the body garner sympathy, says comedian Ruby Wax - except those of the brain. Why is that? With dazzling energy and humor, Wax, diagnosed a decade ago with clinical depression, urges us to put an end to the stigma of mental illness.
The hippocampus, a brain region implicated in memory and interpreting environmental contexts, has been the focus of a controversy in post-traumatic stress disorder. A new study has found that larger hippocampal volume is associated with recovery of PTSD.
A recent study suggests that bullying by peers changes the structure surrounding a gene involved in regulating mood, making victims more vulnerable to mental health problems as they age.
A recent study suggests that bullying by peers changes the structure surrounding a gene involved in regulating mood, making victims more vulnerable to mental health problems as they age.