On Tue, Jun 3, 2008 at 11:08 AM, Ben Goertzel <[EMAIL PROTECTED]> wrote: > We can tell what parts of the brain tend to be involved in what sorts > of activities, from fMRI. Not much else. > > Puzzling out complex neural functions often involves combining fMRI > data from humans with data from single-neuron recordings in other > animals. But we can generally only measure from a few dozen neurons > at a time even in invasive animal studies... > > As an example, no one yet knows how the brain represents 3D shapes ... > is it a literal 3D map of an object? some kind of symbolic > representation? some combination? something inbetween? fMRI or other > brain imaging tools don't tell us, yet... I think we'll need better > tools ... >
Grid cells ( http://www.scholarpedia.org/wiki/index.php?title=Grid_cells ) is a very impressive feature. You can infer a lot from findings like this, about the way (low-level) knowledge forms in the brain. Presumably representations of 3D scenes include their grid projections, and some kind of structural (causal) skeleton of the scene. -- Vladimir Nesov [EMAIL PROTECTED] ------------------------------------------- agi Archives: http://www.listbox.com/member/archive/303/=now RSS Feed: http://www.listbox.com/member/archive/rss/303/ Modify Your Subscription: http://www.listbox.com/member/?member_id=8660244&id_secret=103754539-40ed26 Powered by Listbox: http://www.listbox.com
