More evidence of brain plasticity: Some blind people are able to use echolocation to perceive space and objects around them in surprising detail, even though the time differences in echoes necessary to do this are two small to be consciously perceived. An fMRI study by Lore Thaler, Stephen Arnott and Melvyn Goodale revealed that people who are especially adept at this use their calcarine cortex (a.k.a. V1 or primary visual cortex) to process spatial information from the echoes.
The original paper.A shorter discussion. (Previously)
posted by nangar
on Jun 20, 2011 -
Secret of AA: After 75 Years, We Don’t Know How It Works. "There is evidence that a big part of AA’s effectiveness may have nothing to do with the actual (12) steps. It may derive from something more fundamental: the power of the group. The importance of this is reflected by the fact that the more deeply AA members commit to the group, rather than just the program, the better they fare." [more inside]
posted by netbros
on Jul 6, 2010 -