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o_guest's profile
Olivia Guest | Ολίβια Γκεστ
Olivia Guest | Ολίβια Γκεστ
Olivia Guest | Ολίβια Γκεστ
@o_guest

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Olivia Guest | Ολίβια Γκεστ

@o_guest

• goth gremlin • computational cognitive/neuroscience modeling • geek & techish Cypriot • plant aficionada • came up with #bropenscience • http://neuroplausible.com  •

Τότεναμ, Λονδίνο & Cyprus
olivia.science
Joined October 2015

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    1. Agnes Norbury‏ @AgnesNorbury 25 Jul 2018
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      Could anyone point me towards a resource on best practices for registering predictive models prior to testing on independent validation sets? Or for pre-registering work on existing (but not yet accessed) datasets more generally? (@kirstie_j @o_guest?)

      3 replies 3 retweets 5 likes
    2. Olivia Guest | Ολίβια Γκεστ‏ @o_guest 25 Jul 2018
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      Replying to @AgnesNorbury @kirstie_j

      Computational models? Never seen any coherent position on this. I'm not convinced pre-registration and Computational modelling are compatible per se more like parallels. @BArslan_CogSci @bradpwyble @IrisVanRooij

      3 replies 1 retweet 3 likes
    3. Agnes Norbury‏ @AgnesNorbury 25 Jul 2018
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      Replying to @o_guest @kirstie_j and

      In this case, just wondering if it would be possible to fit a predictive model (e.g. symptom change from baseline imaging and clinical data), then register that somewhere before testing on independent data. Issue is both datasets already exists so hard to prove date of access...

      1 reply 0 retweets 1 like
    4. Olivia Guest | Ολίβια Γκεστ‏ @o_guest 25 Jul 2018
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      Replying to @AgnesNorbury @kirstie_j and

      A statistical model? Like a multiple regression?

      1 reply 0 retweets 0 likes
    5. Agnes Norbury‏ @AgnesNorbury 25 Jul 2018
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      Replying to @o_guest @kirstie_j and

      Yes, sorry, in this case likely some kind of regression (but also could be e.g. some kind of classification algorithm).

      1 reply 0 retweets 1 like
    6. Olivia Guest | Ολίβια Γκεστ‏ @o_guest 25 Jul 2018
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      Replying to @AgnesNorbury @kirstie_j and

      Ah, so this is surely not really what I'm an expert in at all. FWIW this should be exactly what standard prereg is — although not an expert myself!

      1 reply 0 retweets 0 likes
    7. Olivia Guest | Ολίβια Γκεστ‏ @o_guest 25 Jul 2018
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      Replying to @o_guest @AgnesNorbury and

      That "surely" is superfluous/a mistake. 🤣

      1 reply 0 retweets 1 like
    8. Agnes Norbury‏ @AgnesNorbury 25 Jul 2018
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      Replying to @o_guest @kirstie_j and

      Ah sorry, my fault for assuming you would probably know about anything model-related :-). Interesting to think about the computational case too though. Maybe this is covered under standard pre-reg under some kind of time-lock system.

      3 replies 0 retweets 1 like
    9. Iris van Rooij‏ @IrisVanRooij 25 Jul 2018
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      Replying to @AgnesNorbury @o_guest and

      Same for me: not my type of modeling. Given your comments in the rest of the thread, Olivia, I am curious what you consider your type of modeling.

      1 reply 0 retweets 1 like
      Olivia Guest | Ολίβια Γκεστ‏ @o_guest 25 Jul 2018
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      Replying to @IrisVanRooij @AgnesNorbury and

      I don't think you and I use the term differently. Models of cognition and/or the brain which can model data but other types of the same model can also just be models. Some of my modelling work doesn't involve fitting any data per se, for example.

      9:21 AM - 25 Jul 2018
      • 1 Like
      • Iris van Rooij
      1 reply 0 retweets 1 like
        1. New conversation
        2. Iris van Rooij‏ @IrisVanRooij 25 Jul 2018
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          Replying to @o_guest @AgnesNorbury and

          Ok, check. Indeed, most of my modeling is ‘theoretical modeling’ (models of cognition), not ‘data modeling’.

          1 reply 0 retweets 1 like
        3. Olivia Guest | Ολίβια Γκεστ‏ @o_guest 25 Jul 2018
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          Replying to @IrisVanRooij @AgnesNorbury and

          Like there's no data being fit here.http://dx.doi.org/10.7554/eLife.21397 …

          1 reply 0 retweets 2 likes
        4. Iris van Rooij‏ @IrisVanRooij 25 Jul 2018
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          Replying to @o_guest @AgnesNorbury and

          Ah yes, I recall that cool paper :)

          1 reply 0 retweets 1 like
        5. Olivia Guest | Ολίβια Γκεστ‏ @o_guest 25 Jul 2018
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          Replying to @IrisVanRooij @AgnesNorbury and

          This is another reason I get upset when people say we don't do theory in psych/neuro... like, we do, we really do.

          2 replies 0 retweets 2 likes
        6. Iris van Rooij‏ @IrisVanRooij 25 Jul 2018
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          Replying to @o_guest @AgnesNorbury and

          We do. But surely, we need more of it. I think we need theoretical psychology to grow to match mass in experimental psychology. We are still too far removed from that IMHO.

          1 reply 0 retweets 1 like
        7. Olivia Guest | Ολίβια Γκεστ‏ @o_guest 25 Jul 2018
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          Replying to @IrisVanRooij @AgnesNorbury and

          Match what mass?

          1 reply 0 retweets 0 likes
        8. Iris van Rooij‏ @IrisVanRooij 25 Jul 2018
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          Replying to @o_guest @AgnesNorbury and

          I meant, nr of people doing theoretical work vs nr of people doing experimental work. I think the ratio is off. Need not be 1, but currently perhaps more like <0.001. Or too pessimistic?

          1 reply 0 retweets 1 like
        9. Iris van Rooij‏ @IrisVanRooij 25 Jul 2018
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          Replying to @IrisVanRooij @o_guest and

          Perhaps I should make a poll ;)

          1 reply 0 retweets 1 like
        10. 2 more replies

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