HOME >> BIOLOGY >> NEWS
Substance Abuse May Curb Body's Stress Reactions

Teenage substance abusers display a characteristic pattern of heart rate and other physiological changes in response to loud noise, offering clues to how and why some young people develop substance use disorders, according to new research.

Those teenagers may use alcohol, tobacco, or other substances, in part, as a way to blunt their bodies' reactions to stressful events in their lives, Jeanette Taylor, William G. Iacono, PhD, and colleagues at the University of Minnesota, Minneapolis, report in the March issue of Psychophysiology, published today.

"Substance dependence is a complex phenomenon that cannot be fully understood through examination of single domains, such as the environment," Taylor says. "Our investigation lends further support to the growing literature that suggests that examination of physiological systems will provide important pieces in the puzzle of substance dependence."

While 175 young men aged 16 to 18 listened through headphones for a 90 decibel blast of white noise, Taylor and colleagues recorded a variety of physiological measures, including heart rate and skin conductance, an indicator of arousal. Sometimes the noise blasts would be signaled in advance on a computer screen; at other times they were not predictable.

When the noise blast was predictable, some of the young men responded with lower skin conductance readings than when the noise blast was unpredictable. These "good modulators," as the researchers called them, were least likely to be dependent on alcohol, tobacco, or other substances.

Other subjects had the opposite response: when the noise was predictable, their skin conductance readings were higher than when the noise was unpredictable. These "poor modulators" were the most likely to report symptoms of substance dependence.

Good modulators also showed increased heart rates in anticipation of the noise blast, but poor modulators showed no heart r
'"/>

Contact: Jeanette Taylor
jtaylor@tfs.psych.umn.edu
612-624-3585
Center for the Advancement of Health
23-Feb-1999


Page: 1 2

Related biology news :

1. Substances found in blood may predict development of preeclampsia
2. Substance used to treat complications from diabetes also proves to work as antioxidant
3. Rivers May Be Emitting Substance Involved In Ozone Destruction
4. Studies Rebut Concept That Body Stores Vitamin A-Making Substances
5. New Study Shows White Males Have More Receptors For Patent Blood-Vessel Contracting Substance
6. Testing Sought For Brighteners, Natural Substance In Spices, Cosmetic Chemical, Three Herbs, A Natural Oil And A Fertilizer
7. Munching Microbes Make A Meal Out Of Toxic Substances
8. Gene-Altered Mouse May Provide New Insights To Parkinsons Disease, Substance Abuse And Schizophrenia
9. National Institute on Drug Abuse launches National Drug Addiction Treatment Clinical Trials Network
10. Womens Shame Stalls Abuse Disclosure To Physicians
11. Survey Shows Students Turning To Physicians Less As Drug Abuse Increases

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/27/2021)... ... March 25, 2021 , ... Phlexglobal announced ... Planet Group, has selected Phlexglobal and its innovative regulatory SaaS software, PhlexSubmission, as ... a comprehensive review of five regulatory software companies, with the review team including ...
(Date:3/27/2021)... ... 25, 2021 , ... The 2021 Virtual Conference on Clinical Trial Supply-Europe ... More and more, clinical trial supply conferences are featuring speakers and forums that ... Asymmetrex’s founder and CEO, James L. Sherley, M.D., Ph.D., presented a talk ...
(Date:3/23/2021)... ... March 23, 2021 , ... G-CON Manufacturing (G-CON), the ... by Matica Biotechnology (Matica Bio), a contract development and manufacturing organization (CDMO) specializing ... the cleanroom build out for its new GMP production facility in College Station, ...
Breaking Biology News(10 mins):
(Date:3/27/2021)... ... March 24, 2021 , ... ... Life Sciences and Healthcare firms of all sizes, adds depth to its team ... specialist. Pardillo, who earned his doctorate in computational chemistry from Florida International University ...
(Date:3/27/2021)... ... March 24, 2021 , ... ABI Wellness, ... and reporting approach designed under CEO Mark Watson, today announced a webinar dedicated ... featuring guest speakers Dr. Cameron Clark, Neuropsychologist and Founder of Sharp Thinking, and ...
(Date:3/27/2021)... ... ... The Xtalks editorial team is pleased to announce the launch of the ... joined by editorial team members Ayesha Rashid, Sydney Perelmutter and Mira Nabulsi to discuss ... including insights from industry experts. , The Xtalks Life Science podcast will feature ...
(Date:3/23/2021)... Conn. (PRWEB) , ... March 23, 2021 , ... ... develops solutions for characterizing microbiome populations down to the strain level, recently unveiled ... applications. , Not all microbes are created equal: some are easy to ...
Breaking Biology Technology:
Cached News: