Aspects of empathy, such as emotional contagion, have also been demonstrated in pri- mates. In a classical study monkeys can acquire fear of snakes after watching other monkeys’ fearful interactions with snakes, without any personal experience [10]. Also, an experiment in which peripheral skin temperature was measured in chimpanzees while they viewed an emotionally laden video demonstrated a decrease of skin temperature, indicative of sympathetic arousal, when they viewed videos of conspecifics injected with needles or videos of the needles themselves [33].
However, it has to be pointed out that, on the contrary to what happens in rodents, in primates facial expressions have a crucial role in comunication within groups [34].
Therfore, the emotional
However, it has to be pointed out that, on the contrary to what happens in rodents, in primates facial expressions have a crucial role in comunication within groups [34].
Therfore, the emotional