[accessibleimage] Navigation and a couple of questions

Hi,
Thought this would be of interest. It comes from NTNU The Norwegian
University of Science and Technology. It is about navigation. And I
thought it might help explain why blind persons can understand perspective
and 3-dimension?  And the grids that are formed sound similiar to the
triangulation used in GIS... hmm? 

Here are some of the headings translated from the article to give a quick
idea. An abstract in English from the periodical Science follows that.
Titles Norwegian article:This is how you navigate
Norwegian brain researchers have found out how we know at all times where
we are
Triangular net
Born with world map
Works in the dark


What do you think?

Science article

 Francesca Sargolini and colleagues have discovered cells in the medial
entorhinal cortex that respond to head-direction as well as position in
the grid coordinate system. Combining information about position,
direction and speed, these conjunctive cells may be part of the mechanism
by which the position vector in the grid-cell network is updated as the
animal moves through a two-dimensional environment. The paper appears in [
http://www.sciencemag.org/cgi/content/full/312/5774/758 ]today?s issue of
Science. See separate story about the findings in [
http://www.sciencemag.org/cgi/content/full/312/5774/680 ]Science?s News
Focus section. See also article at [
http://www.forskning.no/Artikler/2006/mai/1146675051.88 ]forskning.no. 


Also another article from Science

NEUROSCIENCE:
The Map in the Brain: Grid Cells May Help Us NavigateKaren Heyman 
A newfound class of neurons reported on page [
http://www.sciencemag.org/cgi/content/short/312/5774/758 ]758 of this
issue of Science enables the brain to perform complex spatial
navigation--and may even help form memories. ([
http://www.sciencemag.org/cgi/content/full/312/5774/680 ]Read more.)

http://www.cbm.ntnu.no/
http://www.sciencemag.org/cgi/content/full/312/5774/758
http://www.sciencemag.org/cgi/content/summary/312/5774/680

article in Norwegian
This Is How You Navigate
http://www.forskning.no/Artikler/2006/mai/1146675051.88
Map in Our Brain
http://www.forskning.no/Artikler/2005/juni/1119015013.06

Regards,
Lisa



Lisa Yayla
Huseby Kompetansesenter 
Oslo Norway
lisa.yayla@xxxxxxxxxx

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