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I think it's interesting that they say all the participants are right handed. I'm guessing left handed people (like me) would make it complicated to compare br

by cbanek 7y ago

I think it's interesting that they say all the participants are right handed. I'm guessing left handed people (like me) would make it complicated to compare brain strcutures since the structures are cross-wired and therefore slightly different for left handed and right handed people? But not all structures are reversed. Kind of like the medical literature focusing on using males for test studies [1] it makes me wonder if left handed people would have some kind of different result in these types of brain studies. [1]: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4800017/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4800017/

frereubu 7y ago
If they were selected that way on purpose, they're probably just trying to control for confounding differences to try and make it easier to distinguish the signal from the noise in the statistics. Same reason that "there were no major differences in sex, age or years of education between meditation practitioners and control subjects." Edit: They say "handedness was measured by Annett Hand Preference Questionnaire" which suggests that this wasn't deliberate.