This has been a much debated experiment because it seems impossible to find it published in a peer-reviewed journal anywhere, yet it is used in the IB course companion. Many teachers questioned if it even existed and where the information for the textbook came from.

At 17:00mins in the following video you will the psychologist Joseph Martinez explain the experiment on acetylcholine and memory. Can you use it, even though it hasn’t been published in a peer-reviewed journal? I’ll leave that up to you…