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AdamMarblestone's profile
Adam Marblestone
Adam Marblestone
Adam Marblestone
@AdamMarblestone

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Adam Marblestone

@AdamMarblestone

Technologist, Scientist

adammarblestone.org
Joined February 2009

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    1. Sam Gershman‏ @gershbrain Mar 4
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      I'm looking for examples in the history of neuroscience where no one thought to measure something until a theory posited that it should exist (i.e., empirical phenomena that were effectively invisible in the absence of theory).

      79 replies 121 retweets 485 likes
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      Adam Marblestone‏ @AdamMarblestone Mar 4
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      Replying to @gershbrain

      Adam Marblestone Retweeted Grace Lindsay

      Recently, this https://mobile.twitter.com/neurograce/status/1234168729342115840 … Assemblies/ensembles/attractors https://www.ncbi.nlm.nih.gov/m/pubmed/26063915/ … (via Hebb/Hopfield) and E/I balance might be others, although I don’t know if the E/I balance field was mostly empirical or theoretical in origin?

      Adam Marblestone added,

      Grace Lindsay @neurograce
      However networks for only 3 of the 4 quadrants in this 2-d space had been identified (face, body, and this new network X). So they hunted for a network for the fourth quadrant & found it (magenta in the image above)! Nice example of theory driving discovery. 2/2
      Show this thread
      9:25 AM - 4 Mar 2020
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      • Dr Simon Osindero matteo saponati Nsci Michael Anes Sahil Moza Kai Ueltzhöffer Daniel Borek David L Barack Marina Picciotto
      2 replies 0 retweets 11 likes
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        2. Grace Lindsay‏ @neurograce Mar 4
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          Replying to @AdamMarblestone @gershbrain

          I think it's safe to say the push to check whether EI balance dynamically emerges in different circumstances was theory-driven.

          2 replies 0 retweets 9 likes
        3. Grace Lindsay‏ @neurograce Mar 4
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          Replying to @neurograce @AdamMarblestone @gershbrain

          Also: Rail's computational models of dendritic effects on firing came before people looked for that afaik. Obviously reward prediction errors are a big one (tho more of a retroactive interpretation of data). The hunt for how priors are stored in the brain could also be considered

          1 reply 0 retweets 2 likes
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        2. Sahil Moza‏ @sahilmoza Mar 5
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          Replying to @AdamMarblestone @gershbrain

          Interestingly, the notion of EI balance came first from psychology. Hans Eysenck (1955) suggested an excitation-inhibition balance responsible for extroversion-introversion personality traits. Extroverts being fast exc and slow inh, and introverts slow exc and fast inh. (1/2)

          1 reply 0 retweets 0 likes
        3. Sahil Moza‏ @sahilmoza Mar 5
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          Replying to @sahilmoza @AdamMarblestone @gershbrain

          Next it appeared in a theory paper Gerstain and Mandelbrot (of Mandelbrot sets) (1964). They suggested that it could explain the irregular (Poisson-like) cortical firing. The first observation came much later (Wehr and Zador, 2003?). So I'd say EI balance + neural coding. (2/2)

          0 replies 0 retweets 2 likes
        4. End of conversation

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