Chimpanzee cognitive study shows ability to process conflicting evidence and change decisions
By
rbanffy
A second-rack bagel that's nearly first-rack. Tasty stuff.
Summary
The article describes a scientific study on chimpanzee cognition where researchers tested how chimps process conflicting evidence. In the experiment, chimps first received auditory evidence (rattling sound) pointing to one container, then visual evidence (peanut trail) pointing to another. Initially, chimps chose the container with auditory evidence, but when researchers removed a rock from that container (suggesting the rattling wasn't from food), the chimps demonstrated rational thinking by changing their choice based on the new evidence.
Key quotes
· 5 pulledIn the first step, the chimps got the auditory evidence, the same rattling sound coming from the first container.
Then, they received indirect visual evidence: a trail of peanuts leading to the second container.
At this point, the chimpanzees picked the first container, presumably because they viewed the auditory evidence as stronger.
But then the team would remove a rock from the first container. The piece of rock suggested that it was not food that was making the rattling sound.
At this point, a rational agent should conclude, 'The evidence I followed is now defeated'
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