A study examined the relationship between facial expressions and cognitive states in mice and monkeys. Animals were trained in a virtual environment to search for targets and were rewarded with food. Researchers recorded facial expressions and applied a model to predict internal cognitive states based on these expressions. The findings indicate that, akin to humans, both species use facial expressions to signal task-relevant internal states, which ultimately influence their subsequent behaviors.
Facial expressions in mice and monkeys can reliably predict their internal cognitive states and future behaviors, suggesting similarities with human emotional signaling.
The study trained monkeys and mice to navigate a virtual environment, showing that their facial expressions correspond to internal task-relevant states.
Facial expressions signal internal cognitive states, enabling predictions about subsequent behavior in mice and monkeys that parallel human emotional expression.
Long-standing theories in human psychology about universal facial expressions of emotions extend to non-human animals, as evidenced in this research with primates and rodents.
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