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Whiplash Injuries -- Are They Caused By Startle Reflexes?

Date:
July 4, 2006
Source:
Blackwell Publishing Ltd.
Summary:
New research published in The Journal of Physiology suggests that a cause of whiplash injuries could be startle reflexes elicited by unexpected loud sounds.

New research published in The Journal of Physiology suggests that a cause of whiplash injuries could be startle reflexes elicited by unexpected loud sounds.

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Whiplash injuries most commonly result from seemingly minor low-speed rear-end collisions. The reason for the injury is not known but it is generally thought that the sudden acceleration of the body relative to the head damages the joints and muscles of the neck, which can lead to long-lasting pain.

Jean-Sébastien Blouin and colleagues at The University of British Columbia, collaborating with MEA Forensic Engineers & Scientists, exposed subjects to rear-end collisions that were sometimes accompanied by loud sounds. They showed that a significant component of the muscle reaction in a first collision – like the unexpected one on the roads – arises through being startled by the abrupt motion and loud sound of the impact.

This new finding promises a new understanding of the causes of this common injury, leading to new ways of prevention and management.

Reference: Startle responses elicited by whiplash perturbations, by Jean-Sébastien Blouin, J Timothy Inglis and Gunter P. Siegmund. Published 15 June 2006, The Journal of Physiology, 573.3, pp. 857–867


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The above story is based on materials provided by Blackwell Publishing Ltd.. Note: Materials may be edited for content and length.


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Blackwell Publishing Ltd.. "Whiplash Injuries -- Are They Caused By Startle Reflexes?." ScienceDaily. ScienceDaily, 4 July 2006. <www.sciencedaily.com/releases/2006/07/060703210444.htm>.
Blackwell Publishing Ltd.. (2006, July 4). Whiplash Injuries -- Are They Caused By Startle Reflexes?. ScienceDaily. Retrieved November 28, 2014 from www.sciencedaily.com/releases/2006/07/060703210444.htm
Blackwell Publishing Ltd.. "Whiplash Injuries -- Are They Caused By Startle Reflexes?." ScienceDaily. www.sciencedaily.com/releases/2006/07/060703210444.htm (accessed November 28, 2014).

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