BD, This is a muddle. (So is much else in this thread but this muddle may be more briefly addressed.) > Studies of deep meditation has shown how some subjects can > react on the brain level to sound but not on the > physiological one. Does the brain not count as "physiology"? Surely, we do speak of "neurophysiology". I take it you are referring to various studies of alpha blocking and habituation phenomena in meditation subjects. The studies of this nature that I've encountered describe different patterns of activation in different parts of the brain. Notably, a response of disturbance followed by "tuning out" in non meditators was contrasted with one of continued passive awareness. But this was correlated with activity in different parts of the brain, all of which are rightly counted as subjects for physiology. JPDeMouy ========================================= Need Something? Check here: http://ludwig.squarespace.com/wittrslinks/