I'd like a phonecard, please quicker buy serevent diskus quicker captive "The paper has merely shown - and the authors are extremely clear on this point - that they have demonstrated the change in gamma oscillations occurring over a similar time period to when NDEs are experienced in humans," said Dr David McGonigle, of Cardiff University's school of psychology. "We have no idea what the rats experience - if anything - while the increase in synchronous gamma occurs."