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Comment by mfukar | Hacker News Reader

  Any control group on the babies to see if it's actually fear of spiders they learnt, or just fear?

What would comprise the control group? Psychopath baby crickets?

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I'm not sure what the cricket equivalent would be but in a mouse model open space and bright space anxiety tests would be a reasonable approach to understanding whether the anxiety is general or specific to spiders.

Exactly. Something else scary that doesn't resemble a spider.

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