Increase your income by attracting thousands of followers, fans, and friends to your Twitter, Facebook, and MySpace by using free content from www.SocialOpine.com. 
Neural activity in speech-sensitive auditory cortex during silence
That auditory hallucinations are voices heard in the absence of external stimuli implies the existence of endogenous neural activity within the auditory cortex responsible for their perception. Further, auditory hallucinations occur across a range of healthy and disease states that include reduced arousal, hypnosis, drug intoxication, delirium, and psychosis. This suggests that, even in health, the auditory cortex has a propensity to spontaneously "activate" during silence. Here we report the findings of a functional MRI study, designed to examine baseline activity in speech-sensitive auditory regions. During silence, we show that functionally defined speech-sensitive auditory cortex is characterized by intermittent episodes of significantly increased activity in a large proportion (in some cases >30%) of its volume. Bilateral increases in activity are associated with foci of spontaneous activation in the left primary and association auditory cortices and anterior cingulate cortex. We suggest that, within auditory regions, endogenous activity is modulated by anterior cingulate cortex, resulting in spontaneous activation during silence. Hence, an aspect of the brain's "default mode" resembles a (preprepared) substrate for the development of auditory hallucinations. These observations may help explain why such hallucinations are ubiquitous.
Sheffield Cognition and Neuroimaging Laboratory (SCANLab), Academic Clinical Psychiatry, Division of Genomic Medicine, University of Sheffield, Sheffield S5 7JT, United Kingdom. m.d.hunter@sheffield.ac.uk
Posted: 11/03/2006
This article provided by The International Hypnosis Research Institute.
Enter your email address to subscribe to the IHRI Newsletter.
|
Improve Your Sexual Intimacy!Stress,anxiety,depression,&even your self esteem will affect how you perform in bed with your partner.This session will help with your confidence and allow you to balance your enjoyment and excitement!
|
|
Premature ejaculation is often a sign of too much stimulation, guilt,anxiety,or depression.Hypnosis signals your mind to relax&helps with these conditions.In fact,by resolving the root issues you will find your experience exceeding your expectations!
|
|
Erectile dysfunction affects an estimated 15 to 30 million Americans.Hypnosis can help you with stress, depression, and any issues dealing with your inner mind that may be causing your erectile dysfunction.So,Be Ready When You Want To Be!
|
