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research_ref.md

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[TOC]

data

misc

levels

  • Marr's three levels
    1. computation - behavior
    2. algorithm - causal connectomics
    3. basic implementation - structural connectmoics, molecular biology

questions

  • problems that are solved, or soon will be
    • how do single neurons compute?
    • what is the connectome of a small nervous system, like that of C. elegans (300 neurons)?
    • how can we image a live brain of 100,000 neurons at cellular and millisecond resolution?
      • hydra was completed
    • how does sensory transduction work?
  • problems that we should be able to solve in the next 50 years
    • can we add senses to the brain?
      • like cochlear implant
      • like vibrations
    • how do circuits of neurons compute?
    • what is the complete connectome of the mouse brain (70e6 neurons)?
    • how can we image a live mouse brain at cellular and millisecond resolution?
    • what causes psychiatric and neurological illness?
    • how do learning and memory work?
      • short-term vs. long-term
      • declarative vs. non-declarative
      • encodes relationships between things not things themselves
      • memory retrieval
    • why do we sleep and dream?
      1. sleep is restorative (but then why high neural activity?)
      2. allows the brain to run simulations
      3. consolidating memories and forgetting
    • where is consciousness?
      • at this point, sounds and vision should line up (delayed appropriately)
    • how do we make decisions?
    • how does the brain represent abstract ideas?
    • what does neural baseline activity represent?
    • how does the brain solve timing?
      • moving eyes
      • blinking
      • hearing and vision time differences
    • how does sensorimotor learning build a model of the world?
  • problems that we should be able to solve, but who knows when
    • how do brains simulate the future?
    • how does the mouse brain compute?
    • what is the complete connectome of the human brain (8e10 neurons)?
    • how can we image a live human brain at cellular and millisecond resolution?
    • how could we cure psychiatric and neurological diseases?
    • how could we make everybody’s brain function best?
    • brain and quantum?
      • some work in quantum neural nets
    • how is info coded in neural activity?
      • like measuring tansistors and guessing what computer is doing
      • neuron gets lots of inputs
    • do glial cells and other signaling molecules compute?
    • what is intelligence?
      • what is iq?
    • how do specialized systems integrate?
  • problems we may never solve
    • what are emotions?
      • brain states that quickly assign values
      • in the amygdala
    • how does the human brain compute?
    • how can cognition be so flexible and generative?
    • how and why does conscious experience arise?
      • thing that flickers on when you wake up that was not there
      • evolutionary to manage all the different systems
  • meta-questions
    • what counts as an explanation of how the brain works? (and which disciplines would be needed to provide it?)
    • how could we build a brain? (how do evolution and development do it?)
    • what are the different ways of understanding the brain? (what is function, algorithm, implementation?)
  • ref David Eaglemen article: http://discovermagazine.com/2007/aug/unsolved-brain-mysteries
  • ref Adolphs 2015, "The unsolved problems of neuroscience"

small misc things

rna barcoding

brain transplant

  • computational hypothesis of the mind

tms

  • temporary cure for autism
  • can change people's minds

quantum brain

  • quantum brain?

brain on a chip

  • neuromorphic chips
  • grow cells in vivo

connectomics

  • C Elegans
    • 302 neurons
    • no evidence of Hebbian learning
    • develop synaptogenesis rules?

history

  • biology U: phenomenon (high level) -> element (low level) -> synthesis (high level)

cogsci

  • model-free vs model-based

biomechanics

  • brain exists to make suggestions to motor system
  • reflexes don't need cortex, but still tricky
    • ex. wipe skin when irritated in frog - works when leg at different points, leg stopped
  • idea: t-sne on neural dynamics: someone at Emory
  • spinal chord is where reflexes are, then brainstem, and cortex is quite slow

scientists

  • ml
    • Geoffrey Hinton - emeritus, Toronto
      • Yann Lecun (NYU) - heads fb AI
        • was his research associate
    • Michael Jordan - Berkeley
      • students: Ng, Blei; postdoc: Bengio
      • Andrew Ng - Stanford
      • David Blei - topic modeling
      • Yoshua Bengio - McGill
        • Ian Goodfellow - GANs
    • Jeff Hawkins - established redwood
      • left to found numenta
    • Terry Sejnowski
      • coinvented Boltzmann machines
    • Daphne Koller - co-founder of Coursera
      • representation, inference, learning, and decision making
    • Schmidhuber & Hochreiter - LSTM
    • Jitendra Malik - computer vision
    • Andrej Karpathy - blogger, Tesla AI director
  • comp neuro
    • Karl Friston - functional imaging analysis
    • Raymond Dolan - emotion, pain
    • Terrence J. Sejnowski - boltzmann machines, ICA
    • david marr - vision
    • tomaso poggio - vision
    • Christoph Koch - head of allen institute
    • Daniel Wolpert - noise in the nervous system
    • Jonathan Cohen - theory
    • Larry Abbott - theoretical neuroscience
    • György Buzsáki - oscillations
    • Peter Dayan
    • Haim Sompolinsky
    • Stephen Grossberg
    • Randall C. O'Reilly
    • Nancy Kopell
    • Chris Eliasmith
    • Michael Hasselmo
    • David Heeger
    • Roger D. Traub
    • Bard Ermentrout
    • Eugene M. Izhikevich
    • Eric L. Schwartz
  • misc
    • Byron Yu - bmi
    • James DiCarlo
    • Liam Paninski - decoding
    • Jack Gallant - v4, fmri
    • Bin Yu - model consistency
    • Sebastian Seung - connectomes
    • Surya Ganguli - Stanford
    • David Cox - MIT/IBM
    • Jascha Sohl-Dickstein - Google
    • Iain Couzin
    • Haim Sompolinksy
    • charlest gilbert - rockefeller - studies spatial distribution of visual cortex
    • Susumu Tonegawa - memory