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[0] Graybiel AM, Aosaki T, Flaherty AW, Kimura M, The basal ganglia and adaptive motor control.Science 265:5180, 1826-31 (1994 Sep 23)

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ref: Feingold-2012.04 tags: Feingold Graybeil electrode moveable recording date: 01-28-2013 02:13 gmt revision:1 [0] [head]

PMID-22170970[0] A system for recording neural activity chronically and simultaneously from multiple cortical and subcortical regions in non-human primates.

  • Up to 127 electrodes in 14 brain areas for up to a year at a time.

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[0] Feingold J, Desrochers TM, Fujii N, Harlan R, Tierney PL, Shimazu H, Amemori K, Graybiel AM, A system for recording neural activity chronically and simultaneously from multiple cortical and subcortical regions in nonhuman primates.J Neurophysiol 107:7, 1979-95 (2012 Apr)

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ref: bookmark-0 tags: basal ganglia dopamine reinforcement learning Graybeil date: 03-06-2012 18:14 gmt revision:4 [3] [2] [1] [0] [head]

PMID-16271465 The basal ganglia: learning new tricks and loving it

  • BG analogous to the anterior forebrain pathway (AFP), which is necessary for song learning in young birds. Requires lots of practice and feedback. Studies suggest e.g. that neural activity in the AFP is correlated with song variability, and that the AFP can adjust ongoing activity in effector motor pathways.
    • LMAN = presumed homolog of cortex that receives basal ganglia outflow. Blockade of outflow from LMAN to RA creates stereotyped singing.
  • To see accurately what is happening, it's necessary to record simultaneously, or in close temporal contiguity, striatal and cortical neurons during learning.
    • Pasupathy and biller showed that changes occur in the striatum than cortex during learning.
  • She cites lots of papers -- there has been a good bit of work on this, and the theories are coming together. I should be careful not to dismiss or negatively weight things.
  • Person and Perkel [48] reports that in songbirds, the analogous GPi to thalamus pathway induces IPSPs as well as rebound spikes with highly selective timing.
  • Reference Levenesque and Parent PMID-16087877 who find elaborate column-like arrays of striatonigral terminations in the SNr, not in the dopamine-containing SNpc.

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ref: Graybiel-1994.09 tags: basal ganglia graybeil expert systems motor learning date: 10-03-2008 22:18 gmt revision:2 [1] [0] [head]

PMID-8091209[0] The basal ganglia and adaptive motor control (I couldn't find the pdf for this)

  • the basal ganglia is essentially an expert system which is trained via dopamine.

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