Here are seven recent papers on panic, attention training, and the effects of childhood sexual abuse (all details & abstracts to these studies are listed further down this blog post).  Pfaltz & colleagues report on a novel ambulatory respiratory monitoring system that seems to demonstrate that panic sufferers are not routinely suffering from breathing abnormalities (e.g. hyperventilation) when they go about their daily lives.  The CBT theory of panic disorder would go along with this - panic being seen as due, in part, to catastrophizing about the meaning of experienced physical sensations rather than due to simply having unusual physical sensations.  Shelby et al's paper extends this understanding concluding that with sufferers from non-cardiac chest pain (NCCP) "Chest pain and anxiety were directly related to greater disability and indirectly related to physical and psychosocial disability via pain catastrophizing.