Activate Now
 
ProHealth health Vitamin and Natural Supplement Store and Health
Home  |  Log In  |  My Account  |  View Cart  View Your ProHealth Vitamin and Supplement Shopping Cart
800-366-6056  |  Contact Us  |  Help
Facebook Google Plus
Fibromyalgia  Chronic Fatigue Syndrome & M.E.  Lyme Disease  Natural Wellness  Supplement News  Forums  Our Story
Store     Brands   |   A-Z Index   |   Best Sellers   |   New Products   |   Deals & Specials   |   Under $10   |   SmartSavings Club

Trending News

Decreased levels of vitamin D associated with reduced methylation in African American teens

Sweep Away Senile Cells

PAIN'S SECRET MESSAGE: Why Prince Didn't Need to Die

8 Hacks to Slash Medication Costs

7 Natural Ways to Prevent Diabetes

New Study Shows Optimized Curcumin Stops Inflammation

Relief from Common Digestive Distress

What Foods Can Help Fight the Risk of Chronic Inflammation?

Block The Vascular Origins Of Cognitive Decline

SURVEY: Should Opioids Be Restricted for Chronic Illness?

 
Print Page
Email Article

An fMRI-Based Neurologic Signature of Physical Pain

  [ 1 vote ]   [ Discuss This Article ]
By Tor D. Wager et al. • www.ProHealth.com • April 15, 2013


~Source: N Engl J Med, April 11, 2013.

By Tor D. Wager et al.

Background: Persistent pain is measured by means of self-report, the sole reliance on which hampers diagnosis and treatment. Functional magnetic resonance imaging (fMRI) holds promise for identifying objective measures of pain, but brain measures that are sensitive and specific to physical pain have not yet been identified.

Methods: In four studies involving a total of 114 participants, we developed an fMRI-based measure that predicts pain intensity at the level of the individual person. In study 1, we used machine-learning analyses to identify a pattern of fMRI activity across brain regions — a neurologic signature — that was associated with heat-induced pain. The pattern included the thalamus, the posterior and anterior insulae, the secondary somatosensory cortex, the anterior cingulate cortex, the periaqueductal gray matter, and other regions. In study 2, we tested the sensitivity and specificity of the signature to pain versus warmth in a new sample. In study 3, we assessed specificity relative to social pain, which activates many of the same brain regions as physical pain. In study 4, we assessed the responsiveness of the measure to the analgesic agent remifentanil.

Results: In study 1, the neurologic signature showed sensitivity and specificity of 94% or more (95% confidence interval [CI], 89 to 98) in discriminating painful heat from nonpainful warmth, pain anticipation, and pain recall. In study 2, the signature discriminated between painful heat and nonpainful warmth with 93% sensitivity and specificity (95% CI, 84 to 100). In study 3, it discriminated between physical pain and social pain with 85% sensitivity (95% CI, 76 to 94) and 73% specificity (95% CI, 61 to 84) and with 95% sensitivity and specificity in a forced-choice test of which of two conditions was more painful. In study 4, the strength of the signature response was substantially reduced when remifentanil was administered.

Conclusions: It is possible to use fMRI to assess pain elicited by noxious heat in healthy persons. Future studies are needed to assess whether the signature predicts clinical pain.

Source: N Engl J Med 2013; 368:1388-1397April 11, 2013DOI: 10.1056/NEJMoa1204471. Tor D. Wager, Ph.D., Lauren Y. Atlas, Ph.D., Martin A. Lindquist, Ph.D., Mathieu Roy, Ph.D., Choong-Wan Woo, M.A., and Ethan Kross, Ph.D.





Post a Comment

Featured Products From the ProHealth Store
Energy NADH™ 12.5mg FibroSleep™ Mitochondria Ignite™ with NT Factor®

Looking for Vitamins, Herbs and Supplements?
Search the ProHealth Store for Hundreds of Natural Health Products


Article Comments



Be the first to comment on this article!

Post a Comment


 
20 Helpful Tips for Cleaning and Organizing When You're Chronically Ill

Featured Products

Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%
Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get energized with malic acid & magnesium
Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function
Ultra EPA  - Fish Oil Ultra EPA - Fish Oil
Ultra concentrated source of essential fish oils
Optimized Curcumin Longvida® Optimized Curcumin Longvida®
Supports Cognition, Memory & Overall Health

Natural Remedies

The Brain Boosting and Fatigue Fighting B-12 The Brain Boosting and Fatigue Fighting B-12
The New Dual Activation Pain Relief Cream The New Dual Activation Pain Relief Cream
Vitamin K-2 – A Key Player in Cardiovascular and Bone Health Vitamin K-2 – A Key Player in Cardiovascular and Bone Health
Energy Breakthrough - One Fibromyalgia Patient’s Fortuitous Discovery Energy Breakthrough - One Fibromyalgia Patient’s Fortuitous Discovery
Fatigue & Fibro Fog: Could You Have a B-12 Deficiency? Fatigue & Fibro Fog: Could You Have a B-12 Deficiency?

CONTACT US
ProHealth, Inc.
555 Maple Ave
Carpinteria, CA 93013
(800) 366-6056  |  Email

· Become a Wholesaler

· Affiliate Program
SHOP WITH CONFIDENCE
Credit Card Processing
SUBSCRIBE AND SAVE 15% NOW*
Be the first to know about new products, special discounts and the latest health news. *New subscribers only

CONNECT WITH US ProHealth on Facebook  ProHealth on Twitter  ProHealth on Pinterest  ProHealth on Google Plus

© 2016 ProHealth, Inc. All rights reserved. Store  |  Customer Service  |  Guarantee  |  Privacy  |  Contact Us  |  Library  |  RSS  |  Site Map