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SwipeWright's profile
Colin Wright
Colin Wright
Colin Wright
@SwipeWright

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Colin Wright

@SwipeWright

Evolutionary biologist. Managing Editor @Quillette. Lover of whisk(e)y, fitness, cats, and ideas. Newsletter: http://realityslaststand.com  Gmail: cwright1859

Sacramento, California
instagram.com/swipewrightfit…
Joined June 2018

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    Colin Wright‏ @SwipeWright 27 Feb 2019

    Nature once again commits Seppuku in the name of political correctness in claiming "conclusive findings about sex-linked brain differences have failed to materialize." This is flatly false.https://www.nature.com/articles/d41586-019-00677-x?utm_source=twt_nnc&utm_medium=social&utm_campaign=naturenews&sf208537516=1 …

    11:39 AM - 27 Feb 2019
    • 552 Retweets
    • 1,607 Likes
    • Tuana Actual Patriot 🇺🇸 Peter Lindberg Phil StandenPaterson Samuel Alexander Rabbie Boo-urns Kain Yusanagi K Fitton Servais🇬🇧🇿🇦
    54 replies 552 retweets 1,607 likes
      1. New conversation
      2. Colin Wright‏ @SwipeWright 27 Feb 2019

        Studies concluding there are “no brain differences” fail to take a multivariate approach. In this PNAS study, when “a simple multivariate analysis using the same data suggests the opposite: Brains are indeed typically male or typically female.”https://www.pnas.org/content/113/14/E1966.long …

        6 replies 63 retweets 320 likes
        Show this thread
      3. Colin Wright‏ @SwipeWright 27 Feb 2019

        Using a multivariate approach, this 2016 PNAS study found that they could accurately predict a brain’s sex 93-95% of the time. They conclude: “multivariate analyses of whole-brain patterns in brain morphometry can reliably discriminate sex.”https://www.pnas.org/content/113/14/E1968.long …

        4 replies 58 retweets 295 likes
        Show this thread
      4. Colin Wright‏ @SwipeWright 27 Feb 2019

        This PNAS study showed how flawed univariate methods are for detecting group differences by showing how these methods cannot even accurately detect morphological differences BETWEEN DIFFERENT SPECIES OF MONKEY.https://www.pnas.org/content/113/14/E1965.long …

        3 replies 42 retweets 266 likes
        Show this thread
      5. Colin Wright‏ @SwipeWright 27 Feb 2019

        They conclude, “If the methods of Joel et al. cannot demonstrate consistency in morphological features that distinguish distinct species, is it any wonder that they cannot demonstrate within-individual consistency in sexually differentiated brain structures & behaviors in humans?

        1 reply 26 retweets 211 likes
        Show this thread
      6. Colin Wright‏ @SwipeWright 27 Feb 2019

        And sex differences can be found in human personality traits as well, especially in the Big 5 traits like agreeableness and neuroticism, and in the orientation of individuals toward “people” or “things.”https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1751-9004.2010.00320.x …

        6 replies 31 retweets 214 likes
        Show this thread
      7. Colin Wright‏ @SwipeWright 27 Feb 2019

        For a good summary on the appropriateness of using univariate vs multivariate approaches to detecting brain differences between the sexes, see @WiringTheBrain's blog post: http://www.wiringthebrain.com/2017/08/debunking-male-female-brain-mosaic.html …

        2 replies 28 retweets 173 likes
        Show this thread
      8. Colin Wright‏ @SwipeWright 27 Feb 2019

        And also make sure to read this fantastic article as well.https://www.psychologytoday.com/gb/blog/sexual-personalities/201512/statistical-abracadabra-making-sex-differences-disappear …

        4 replies 49 retweets 249 likes
        Show this thread
      9. Colin Wright‏ @SwipeWright 27 Feb 2019

        See also this: "Here we show, in a ground truth scenario, that a deep neural net can predict sex from scalp electroencephalograms with an accuracy of >80% (p < 10−5), revealing that brain rhythms are sex specific."https://www.nature.com/articles/s41598-018-21495-7 …

        2 replies 25 retweets 144 likes
        Show this thread
      10. Colin Wright‏ @SwipeWright 27 Feb 2019

        And brain connectivity: "we achieved a gender prediction accuracy of 87% when multi‐run rfMRI was used. Permutation tests confirmed that gender prediction was reliable."https://onlinelibrary.wiley.com/doi/abs/10.1002/hbm.23950 …

        1 reply 17 retweets 112 likes
        Show this thread
      11. Colin Wright‏ @SwipeWright 27 Feb 2019

        Also neuroanatomy in youths: "The trained model exhibited an 83% cross-validated prediction accuracy, and correctly predicted the sex of 77% of the subjects from the independent multi-site dataset." https://www.sciencedirect.com/science/article/pii/S105381191830065X?via%3Dihub …

        3 replies 12 retweets 97 likes
        Show this thread
      12. Colin Wright‏ @SwipeWright 27 Feb 2019

        And grey matter: "Models using components of brain gray matter volume and concentration were able to differentiate between males and females with greater than 93% generalizable accuracy."https://onlinelibrary.wiley.com/doi/abs/10.1002/hbm.24462 …

        4 replies 15 retweets 110 likes
        Show this thread
      13. Colin Wright‏ @SwipeWright 27 Feb 2019

        Special thanks to @Scientific_Bird for informing me about the last few studies.

        4 replies 6 retweets 87 likes
        Show this thread
      14. Colin Wright‏ @SwipeWright 3 Apr 2019

        Sex differences in functional connectivity during fetal brain development "These observations confirm that sexual dimorphism in functional brain systems emerges during human gestation."https://www.sciencedirect.com/science/article/pii/S1878929318301245?via%3Dihub …

        1 reply 13 retweets 70 likes
        Show this thread
      15. Colin Wright‏ @SwipeWright 3 Apr 2019

        Sex differences in gene expression in the human fetal brain "In addition to 43 genes transcribed from the Y-chromosome in males, we detected sex differences in the expression of 2558 autosomal genes and 155 genes on the X-chromosome."https://www.biorxiv.org/content/10.1101/483636v1 …

        3 replies 11 retweets 77 likes
        Show this thread
      16. Colin Wright‏ @SwipeWright 24 Jul 2019

        Sex differences in brain development and its relation to psychopathology.https://www.nature.com/articles/s41386-018-0111-z …

        2 replies 4 retweets 61 likes
        Show this thread
      17. Colin Wright‏ @SwipeWright 4 Feb 2020

        "The results obtained clearly show that it is possible to not only uniquely identify a subject, but also to use the intrinsic brain connectivity pattern to identify the subject’s sex."https://www.nature.com/articles/s41598-019-42090-4#Tab5 …

        2 replies 6 retweets 47 likes
        Show this thread
      18. Colin Wright‏ @SwipeWright 18 Feb 2020

        Colin Wright Retweeted Inquisitive Bird

        https://twitter.com/Scientific_Bird/status/1229801358229987329?s=20 …

        Colin Wright added,

        Inquisitive Bird @Scientific_Bird
        New preprint of massive study (by @LaraWierenga et al) finds that there is greater variance in the brain structure of males than females, even after accounting for the mean size differences. This is a confirmation of results from at least two previous brain imaging studies. pic.twitter.com/KLSGI0f8db
        Show this thread
        3 replies 4 retweets 62 likes
        Show this thread
      19. Colin Wright‏ @SwipeWright 27 Jul 2020

        New PNAS study: "Integrative structural, functional, and transcriptomic analyses of sex-biased brain organization in humans." https://www.pnas.org/content/early/2020/07/14/1919091117 …pic.twitter.com/X8xOVNxSTU

        0 replies 5 retweets 37 likes
        Show this thread
      20. End of conversation

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