I found a great critical review of the amgydala/hemisphere symmetry study I posted about the other day (via The Neurocritic). After providing examples of numerous confounds to the study, the reviewer made this conclusion:
There are many more technical problems with the analytical techniques used in this study. I'm not going to bother going through all of them. Needless to say, this study proves absolutely nothing, and is just another example of bad science. As an MRI researcher, this article offends me personally, for it gives MRI and PET research a bad rap; I'm going to go throw up now.I would still take this a step further. It's not just the analytical techniques, it's the starting point. We are mired in this search to correlate vague, highly complex variables from two disparate systems - sexuality and the size of a brain region. I know I keep saying this, but it's just phrenology with better tools.
Studies in neuroscience historically run into problems because they try to run before they can walk. While it's amazing to have the technology to measure these brain differences, our understanding of consciousness, personality, character, sexuality, addiction, habitual behavior, etc. is still too questionable and badly defined to make true correlations with neurological attributes. We're nowhere close to close on this one.
The nature of these "neuropsychological" studies is still in dire need of a paradigm shift.
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