Opher Donchin
@opherdonchin
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Neuroscientist studying motor control and the physiology of the motor system.
beer sheva, israel
Joined January 2011
This looks like a great book and if I wasn't R-osagnostic, I would use it in my course. Is AI good enough to make it all Python/PyMC for me?
Our Introduction to Bayesian Data Analysis for Cognitive Science (with Nicenboim and Schad) is now in production with CRC Press. It will remain freely available here: https://t.co/8ngMjfqH7D
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I am excited to share our latest study, led by Svetlana Volotsky, reveals that archerfish can categorize objects using a small population of neurons in their optic tectumโan early visual processing stage https://t.co/GrsYy8Ylax. (1/4)
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Hitting the nail on the head!
@LNuzhna The diagram from Roger Penrose I think expresses the circular dependence conundrum of science nicely. The question isn't "is X real?" but "what does 'real' mean?"
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So Bayesians: I'm giving one lecture on Bayes in a full course on advanced regression. What is your go-to example of easy to do with Bayesian stats but hard or impossible in frequentist?
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1/๐ Excited to share our new research! ๐ This study, led by the talented Hanna Kossowsky Lev, explores the fascinating interplay between perception and action in haptics. ๐ Read more:
eneuro.org
We use sensory feedback to form our perception, and control our movements and forces (actions). There is an ongoing debate about the relation between perception and action, with evidence in both...
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Spontaneous recovery is a fundamental feature of motor adaptation, implying at least two timescales of learning. A new paper from @AliGhazizadeh11 finds that reward learning also exhibits spontaneous recovery, and links it to the prefrontal cortex. https://t.co/n67UZUXqDB
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Scientists (rightly) trust their eyes more than statistical tests. That's because NHST doesn't actually work. It is empty ritual.
These are all within 2 sigma, how is this considered significant ?
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Feel free to add explanations or post links to the procedures or other relevant information.
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Does your ethics review board or IRB or Human Research Committee require sample size justification for non-clinical trials? Should it?
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Me too!
I voted ๐ณ๏ธ (from abroad!) Please go vote tomorrow ๐บ๐ธ ๐
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ืืืจืื ืฉืืืจืชื ืืขืจื ืืืคืื ื ืฉื ืืืืง ืืืงืืืื. ืืกืืจ ืืืชืืืืฉ https://t.co/dcKeKoCl1f
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Wealth is exactly political power, whether utilized or not. This is the fatal weakness in the argument that "capitalism made everyone richer" argument. Inequality of wealth creates oppression.
Musk is vividly illustrating the problem that the super rich can convert wealth into political power. The problem certainly pre-exists him but this is a disturbing display.
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But this has no right answer! ๐
Why arenโt you a Bayesian? Wrong answers only please
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This.
@PabloVidalRibas This is disappointing, but not unexpected. Free labor and calling it "service" just goes so far. Journals need to start paying reviewers or add other incentives. I personally still accept 1 review per month. Reviewing grants and other services take priority in a thankless system.
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"Some say that consciousness is an "illusion," but I have little idea what this could even mean. It seems to me that we are surer of the existence of conscious experience than we are of anything else in the world." ~David Chalmers, 1996
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New research by Carlos A. Velรกzquez-Vargas and Jordan A. Taylor shows humans can adapt to feedback perturbations in visuomotor tasks by retrieving successful solutions from memory. ๐ https://t.co/OrG05vgvUk
#MotorAdaptation #WorkingMemory #BayesianMethods #ExplicitStrategies
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