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revert to prior core/lab -- web text shaping broke in latest!
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‎content/cerebellum.md‎

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The VOR gain is a _multiplicative_ factor, and yet neurons generally can not directly drive multiplicative effects on other neurons. Instead, the way this is accomplished in these circuits is through an [[opponent]] organization, so that the modulatory neuron excites _both_ a _pull towards_ and a _push away_ from the target action. As the level of excitatory drive is modulated, the overall range of firing of these opponent neurons will vary as well, and it is this overall range that corresponds to the effective gain factor.
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TODO: key point: eye motor commands must _anticipate_ the actual head movement, based on efferent copy, so this requires the forward model prediction -- not just a simple gain learning function, but actual anticipatory learning in the vestib -> motor pathways. Cerebellar cortex can be thought of modulating gain, by affecting learning in vestib cells.
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TODO: key question of how zero visual motion as error signal translates into learning -- this zeroing out is probably true for many other cases..
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Some of the relevant phenomena that a biologically-based model should account for includes:
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* The asymmetry in VOR gain increases vs. decreases, in terms of rate of learning and duration of retention ([[@BoydenKatohRaymond04]]; [[@KukiHirataBlazquezEtAl04]]; [[@KimpoRinaldiKimEtAl14]]). We can understand these differences in terms of the rapid contribution of downbound cerebellar cortex LTD learning for gain increases, which decays relatively rapidly, versus slower, longer-lasting changes in the effective cerebellar nucleus neurons ([[@LisbergerPavelkoBroussard94]]).

‎go.mod‎

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@@ -3,8 +3,8 @@ module github.com/compcogneuro/web
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go 1.25.6
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require (
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cogentcore.org/core v0.3.23
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cogentcore.org/lab v0.1.8
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cogentcore.org/core v0.3.22
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cogentcore.org/lab v0.1.7
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github.com/emer/axon/v2 v2.0.0-dev0.3.5
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github.com/emer/emergent/v2 v2.0.0-dev0.1.9
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)
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github.com/bramvdbogaerde/go-scp v1.6.0 // indirect
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github.com/chewxy/math32 v1.11.1 // indirect
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github.com/cogentcore/readline v0.1.3 // indirect
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github.com/cogentcore/webgpu v0.23.1-0.20260410073005-a2ae7d757168 // indirect
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github.com/cogentcore/webgpu v0.23.0 // indirect
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github.com/cogentcore/yaegi v0.0.0-20260116172027-700fbf8949f3 // indirect
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github.com/dlclark/regexp2 v1.11.5 // indirect
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github.com/ericchiang/css v1.4.0 // indirect
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github.com/fsnotify/fsnotify v1.9.0 // indirect
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github.com/go-fonts/latin-modern v0.3.3 // indirect
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github.com/go-gl/glfw/v3.4/glfw v0.1.0-pre.1 // indirect
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github.com/go-text/typesetting v0.3.5-0.20260418130854-c41d02a44bec // indirect
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github.com/go-gl/glfw/v3.3/glfw v0.0.0-20250301202403-da16c1255728 // indirect
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github.com/go-text/typesetting v0.3.1-0.20250707124828-58cd3ef91251 // indirect
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github.com/gobwas/glob v0.2.3 // indirect
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github.com/gomarkdown/markdown v0.0.0-20250810172220-2e2c11897d1a // indirect
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github.com/gorilla/css v1.0.1 // indirect

‎go.sum‎

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codeberg.org/go-pdf/fpdf v0.11.0 h1:n3I8WISQ1cr0S2rvx9DOlE/GypbcimMWqLpel3slHmY=
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codeberg.org/go-pdf/fpdf v0.11.0/go.mod h1:Y0DGRAdZ0OmnZPvjbMp/1bYxmIPxm0ws4tfoPOc4LjU=
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cogentcore.org/core v0.3.23 h1:50dQPFWNeJ9hI45rDCjRkvleJXdtfQjXfMIMOZgfC1M=
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cogentcore.org/core v0.3.23/go.mod h1:JUM27+rY4+89M1vJ4xA50re76RHF3PqxRqfgDfLj8Us=
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cogentcore.org/lab v0.1.8 h1:4G/lgGbuNYRhcwPgmFOguRm1y9Aubd12nBRqwxQzPdQ=
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cogentcore.org/lab v0.1.8/go.mod h1:nKUVnPLL6tDHNTH7yzu61tZZ4gz1k6JxCA1PzsXLPhs=
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cogentcore.org/core v0.3.22 h1:wKOzPgrRhX7qV7WWrDE68gJaJ/x50f5wWm79/rx50YQ=
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cogentcore.org/core v0.3.22/go.mod h1:IQBEleZr+h6O/UjnymY875ve9kY0yokLK8YJ/JUPPBg=
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cogentcore.org/lab v0.1.7 h1:2dGqhAK/Dt96+20a1qViFodn5P5rJW0FOM+WOUANEc4=
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cogentcore.org/lab v0.1.7/go.mod h1:tdgfMc4+sFfLLyyBmlxVSf3bFSmiTrP4SWRWJ4lPvso=
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git.sr.ht/~sbinet/cmpimg v0.1.0 h1:E0zPRk2muWuCqSKSVZIWsgtU9pjsw3eKHi8VmQeScxo=
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git.sr.ht/~sbinet/cmpimg v0.1.0/go.mod h1:FU12psLbF4TfNXkKH2ZZQ29crIqoiqTZmeQ7dkp/pxE=
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github.com/Bios-Marcel/wastebasket/v2 v2.0.3 h1:TkoDPcSqluhLGE+EssHu7UGmLgUEkWg7kNyHyyJ3Q9g=
@@ -30,8 +30,8 @@ github.com/chewxy/math32 v1.11.1 h1:b7PGHlp8KjylDoU8RrcEsRuGZhJuz8haxnKfuMMRqy8=
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github.com/chewxy/math32 v1.11.1/go.mod h1:dOB2rcuFrCn6UHrze36WSLVPKtzPMRAQvBvUwkSsLqs=
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github.com/cogentcore/readline v0.1.3 h1:tYmjP3XHvsGwhsDLkAp+vBhkERmLFENZfftyPOR/PBE=
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github.com/cogentcore/readline v0.1.3/go.mod h1:IHVtJHSKXspK7CMg3OC/bbPEXxO++dFlug/vsPktvas=
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github.com/cogentcore/webgpu v0.23.1-0.20260410073005-a2ae7d757168 h1:K5en4IrBrolIAWvjrLuXRb9CvU1w+WMMi0Eu0KmcMfQ=
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github.com/cogentcore/webgpu v0.23.1-0.20260410073005-a2ae7d757168/go.mod h1:DQLhF8pM/WkdaGpX6pKmZJPYsoR9x+hohhA1nnNuCa8=
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github.com/cogentcore/webgpu v0.23.0 h1:hrjnnuDZAPSRsqBjQAsJOyg2COGztIkBbxL87r0Q9KE=
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github.com/cogentcore/webgpu v0.23.0/go.mod h1:ciqaxChrmRRMU1SnI5OE12Cn3QWvOKO+e5nSy+N9S1o=
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github.com/cogentcore/yaegi v0.0.0-20260116172027-700fbf8949f3 h1:y3Djpt/g3QTjFdj8cpvy/r8FsZsEa7PqHGjgsKXbta0=
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github.com/cogentcore/yaegi v0.0.0-20260116172027-700fbf8949f3/go.mod h1:XkOm++pRmWlk85p+hw71ZItfTeRdzqG23+2xjP9eb+M=
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github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/fsnotify/fsnotify v1.9.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
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github.com/go-fonts/latin-modern v0.3.3 h1:g2xNgI8yzdNzIVm+qvbMryB6yGPe0pSMss8QT3QwlJ0=
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github.com/go-fonts/latin-modern v0.3.3/go.mod h1:tHaiWDGze4EPB0Go4cLT5M3QzRY3peya09Z/8KSCrpY=
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github.com/go-gl/glfw/v3.4/glfw v0.1.0-pre.1 h1:nIVzcwqIaO1mK8LFr0fGkKpgQD4wJDDHRyv4t5k40Ps=
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github.com/go-gl/glfw/v3.4/glfw v0.1.0-pre.1/go.mod h1:T5Dn0JwIJOX1euPZ/iT4tq6nFYtmukjcYa7937HuYK8=
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github.com/go-text/typesetting v0.3.5-0.20260418130854-c41d02a44bec h1:qkk9+cZlaY8920dQrhY8GoI91N72f58XmJgGDkkDiaA=
56-
github.com/go-text/typesetting v0.3.5-0.20260418130854-c41d02a44bec/go.mod h1:yW47fmJYxJsPcyNWEOGM2lNx766ZKw0cilos3XaD5YY=
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github.com/go-text/typesetting-utils v0.0.0-20260327125527-fbf04b32d9ad h1:J6fi06yzug4KkyQo0hK7UZVFBIlCh7iaG38sGq7THaY=
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github.com/go-text/typesetting-utils v0.0.0-20260327125527-fbf04b32d9ad/go.mod h1:3/62I4La/HBRX9TcTpBj4eipLiwzf+vhI+7whTc9V7o=
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github.com/go-gl/glfw/v3.3/glfw v0.0.0-20250301202403-da16c1255728 h1:RkGhqHxEVAvPM0/R+8g7XRwQnHatO0KAuVcwHo8q9W8=
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github.com/go-gl/glfw/v3.3/glfw v0.0.0-20250301202403-da16c1255728/go.mod h1:SyRD8YfuKk+ZXlDqYiqe1qMSqjNgtHzBTG810KUagMc=
55+
github.com/go-text/typesetting v0.3.1-0.20250707124828-58cd3ef91251 h1:QRcFLinlR2DKeVdwo/hwyz9S5HSzUiXnV0pzX/dhKOg=
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github.com/go-text/typesetting v0.3.1-0.20250707124828-58cd3ef91251/go.mod h1:Fle5OPkxGUxdWDeCpKpvSCE31gEoTGBh63ASvTmSXBA=
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github.com/go-text/typesetting-utils v0.0.0-20250527170436-63e4acdcf075 h1:zRaPuzKe/+Euzz3WwE0YwjXAX4IwvGPRH6abtmRI/4M=
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github.com/go-text/typesetting-utils v0.0.0-20250527170436-63e4acdcf075/go.mod h1:DDxDdQEnB70R8owOx3LVpEFvpMK9eeH1o2r0yZhFI9o=
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github.com/gobwas/glob v0.2.3 h1:A4xDbljILXROh+kObIiy5kIaPYD8e96x1tgBhUI5J+Y=
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github.com/gobwas/glob v0.2.3/go.mod h1:d3Ez4x06l9bZtSvzIay5+Yzi0fmZzPgnTbPcKjJAkT8=
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github.com/gomarkdown/markdown v0.0.0-20250810172220-2e2c11897d1a h1:l7A0loSszR5zHd/qK53ZIHMO8b3bBSmENnQ6eKnUT0A=

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