Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Moderate prenatal exposure to alcohol and stress in monkeys can cause touch sensitivity

11.02.2008
A new study on monkeys has found that moderate exposure to alcohol and stress during pregnancy can lead to sensitivity to touch in the monkeys’ babies.

In human children, sensitivity to touch is one of a number of characteristics of the approximately 5 percent of children who over-respond to sensory information.

Since these characteristics can lead to behavioral or emotional problems, early identification and treatment are important. Children who are sensitive to touch have unpleasant and sometimes painful reactions to otherwise pleasant or neutral forms of touching.

The study, conducted by researchers at the University of Wisconsin-Madison, appears in the January/February 2008 issue of the journal Child Development.

“Our results with monkeys have important implications for preventing childhood disorders,” according to Mary L Schneider, professor of occupational therapy and psychology at the University of Wisconsin-Madison and the study’s lead author.

Researchers studied 38 5- to 7-year-old rhesus monkeys born to mothers who either drank a moderate dose of alcohol every day during their pregnancies, were exposed to a mild 10-minute stressor during their pregnancies, drank a moderate amount of alcohol and were exposed to the stressor during their pregnancies, or were undisturbed while they were pregnant. A moderate dose of alcohol for the monkeys was defined as the equivalent of two drinks a day for a human.

Without knowing which situation the mother monkeys had experienced, the researchers rated the monkeys’ offspring according to how they responded to repeated touch with a feather, a cotton ball, and a stiff brush. They found that monkeys whose mothers had not been stressed or consumed alcohol got used to touch over time, while monkeys whose mothers had been stressed grew more disturbed by touch over time. Monkeys who had been exposed to alcohol prenatally were disturbed by touch more than monkeys who had not been exposed to alcohol prenatally.

Using a brain neuro-imaging technique known as positron emission tomography, or PET, the researchers found that the monkeys’ sensitivities to touch were related to changes in a brain chemical called dopamine in one area of the brain, the striatum. Regulating dopamine plays a crucial role in mental and physical health. Particularly important for learning, dopamine plays a major role in addictions.

“Our findings with monkeys suggest that when mothers are under stress and/or drink alcohol while pregnant, their offspring are at risk for sensory sensitivities,” notes Schneider.

Schneider called for further studies to determine whether reducing sensory sensitivities at an early age in children might help prevent the development of fetal alcohol-related behavioral problems.

“Our findings also have important implications for women of childbearing age,” she added, “suggesting that sensory sensitivities might be reduced by decreasing stress levels and abstaining from alcohol during pregnancy or if planning pregnancy.”

Andrea Browning | EurekAlert!
Further information:
http://www.srcd.org

More articles from Studies and Analyses:

nachricht Europe’s Demographic Future. Where the Regions Are Heading after a Decade of Crises
10.08.2017 | Berlin-Institut für Bevölkerung und Entwicklung

nachricht Scientists reveal source of human heartbeat in 3-D
07.08.2017 | University of Manchester

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

What the world's tiniest 'monster truck' reveals

23.08.2017 | Life Sciences

Treating arthritis with algae

23.08.2017 | Life Sciences

Witnessing turbulent motion in the atmosphere of a distant star

23.08.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>