Principle

Apply Cognition#WikiBrainMapping.

Solution

Use the structure of the wiki (through PmWiki:PageList and PmWiki:Category ) associated with actual brain areas associated with specific functions to generate a realistic visualization (using Processing#ProcessingJS (thus also JavaScript).

The initial mapping could be naive, e.g. all pages in one location, the hyppocampus, then over time moved to more specific areas. This process would emulate neuron migration and specialization.

Hyperbolic projection

Consider a projection in hyperbolic geometry that maps the cortex gray matter, thus mainly outer layers, to a 2D plane mostly without white matter wiring.

• potentially inverse hyperbolic tangent atanh()
  • consider an iterative process or fractals for the convolutions and/or developmental aspect
  • eventually start the other way around, apply tanh() to a 2D surface and compare with an axial view of the brain
• explore instead Monica K. Hurdal's 2001 work on Modeling and Creating Flat Maps of the Human Brain
  • dipole source localisation seems close to techniques learned during LImagerieCerebraleDansTousSesEtats
  • Quasi-conformally flat mapping the human cerebellum, MICCAI 1999
  • co-author with details on circle packings
  • poster
• the other way around, applying the invert model to a corresponding 2D map
  • generate the exobrain (cf ObjectsExoBrain) or neo-neo-cortex (mentionned in MecaMind and WithoutNotesMay10#MichaelGoardEmilyJacobs and earleir discussions) mapping as a 3D model (or >3D, e.g. displaying time partly through the editions using Visualization#timeline) as capping over a 3D brain

Description of the followed process

1. find the 2 brain sides as existing flat rendering
   1. from WithoutNotesMay11#BrainFlatMap
   2. http://www.math.fsu.edu/~mhurdal/research/images/visman/vhrfull_er_an.jpg
2. convert to SVG http://inkscape.org/doc/tracing/tutorial-tracing.html
   1. Path:/pub/illustrations/flat_brain.svg
3. load into ProcessingJS
   1. done using shape()
4. overlay place corresponding areas
5. fake vertical stacking of edits via shifted positioning
   1. drawing a line then adding points instead of rectangles might improve readiblity
   2. an animation could also add the content of the edit and thus represent the construction of the wiki as a set of successive
      1. which would only be partly correct since re-organization has been done and this without diff (e.g. moving a page)

Overall consequences

• reconsider learned material including TreeOfKnowledge#Chapter7, HTM, neural networks in general and own ideas including Mind, Cognition#Thinking through such a much "simpler" representation
  • even social distributed cognition
  • also Seedea:Content/Newconcepts#InformationGeometry and its few links in Mathematics

Bigger picture

This visualization itself could be part of a larger visualization, e.g. applying OwnConcepts#Epistemotaxis by representing the individual and his or her PIM not as an entity changing itself but rather as an entity changing itself by moving within an environment.

See also

• classical brain visualizations
  • separated views: sagital, longitudinal, ...
    • individually
    • synchronously
  • 3D with rotations
• CognitiveEnvironments#tDCS
• Google Labs Body Browser and WebGL
• Digital Atlasing and Standardization in the Mouse Brain, PLoS Computational Biology February 2011
• overall Human Brain Project (HBP) progresses
• Wikipedia:Homotopy, Wikipedia:Homology (biology) and Wikipedia:Deep homology
• consider heat map instead of lines
• Gallant Lab at UC Berkeley
  • impressive flat map
• Wikipedia:Graph isomorphism

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