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Latest Catecholamines Stories

2010-07-01 11:07:24

Brain study highlights role of dopamine in impulsive behavior It's a common scenario: you're on a diet, determined to give up eating cakes, but as you pass the cake counter, all resolve disappears"¦ Now, scientists at the Wellcome Trust Centre for Neuroimaging at UCL (University College London) have shed light on the brain processes that affect our will power and make us act impulsively. In a study published today in the Journal of Neuroscience, funded mainly by the Wellcome Trust,...

2010-06-25 16:13:01

We've all experienced the strong heartbeat that accompanies emotions such as fear and rage. But can the body's natural response to these emotions be used to combat heart failure? Results of a study published online today in the journal Circulation Research present a strong case. In the study, scientists from the University of Rochester Medical Center found that two experimental drugs have the potential to restore pumping strength to failing hearts in part by harnessing the fight-or-flight...

2010-06-03 16:24:46

There are biological motivations behind the stereotypically poor decisions and risky behavior associated with adolescence, new research from a University of Texas at Austin psychologist reveals. Previous studies have found that teenagers tend to be more sensitive to rewards than either children or adults. Now, Russell Poldrack and fellow researchers have taken the first major step in identifying which brain systems cause adolescents to have these urges and what implications these biological...

2010-06-01 05:59:00

NESS ZIONA, Israel, June 1, 2010 /PRNewswire/ -- NeuroDerm, Ltd. announced today the successful enrollment and dosing in its Phase I clinical trial of ND0611. ND0611, a proprietary drug formula administered via a dermal patch, is designed to maintain continuous therapeutic levodopa concentrations for improving the treatment of Parkinson's disease. ND0611 increases levodopa bioavailability and extends its effects by administering a novel pharmaceutical. Previous animal studies found...

2010-05-18 14:35:37

New research shows a possible explanation for the link between mental health and creativity. By studying receptors in the brain, researchers at Karolinska Institutet have managed to show that the dopamine system in healthy, highly creative people is similar in some respects to that seen in people with schizophrenia. High creative skills have been shown to be somewhat more common in people who have mental illness in the family. Creativity is also linked to a slightly higher risk of...

2010-04-27 08:50:34

Researchers at the U.S. Department of Energy's Brookhaven National Laboratory have developed an imaging protocol that allows them to visualize the activity of the brain's reward circuitry in both normal individuals and those addicted to drugs. The technique could lead to better insight into why people take recreational drugs as well as help determine which treatment strategies might be most effective. Drug addiction is a complex process that involves numerous biological and environmental...

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2010-04-26 15:41:40

Brain scans show persistent motivation regardless of payoff Whether it's for money, marbles or chalk, the brains of reward-driven people keep their game faces on, helping them win at every step of the way. Surprisingly, they win most often when there is no reward. That's the finding of neuroscientists at Washington University in St. Louis, who tested 31 randomly selected subjects with word games, some of which had monetary rewards of either 25 or 75 cents per correct answer, others of which...

2010-03-04 08:46:16

ATLANTA - Physicians treating patients with shock should consider norepinephrine instead of dopamine as a tool for stabilizing blood pressure, according to an editorial in the March 4, 2010, issue of the New England Journal of Medicine (NEJM). Jerrold Levy, MD, FAHA, professor and deputy chair for research, Department of Anesthesiology, Emory University School of Medicine, and co-director of cardiothoracic anesthesiology, Emory Healthcare, authored the editorial. The editorial accompanies a...

2010-02-03 13:51:55

People have typically viewed the benefits that accrue with social status primarily from the perspective of external rewards. A new paper in the February 1st issue of Biological Psychiatry, published by Elsevier suggests that there are internal rewards as well. Dr. Martinez and colleagues found that increased social status and increased social support correlated with the density of dopamine D2/D3 receptors in the striatum, a region of the brain that plays a central role in reward and...

2010-02-01 17:41:23

Our need for stimulation and dopamine's action upon the brain are connected, which explains why people who constantly crave stimulation are in danger of addictive behavior such as drug abuse and gambling. The urge to actively seek out new experiences is a personality trait that psychologists have known about for years, but up until now scientists have been unable to prove how this urge relates to hormonal activities in the brain. Now, an international research team made up of scientists from...


Word of the Day
toccata
  • In music, a work for a keyboard-instrument, like the pianoforte or organ, originally intended to utilize and display varieties of touch: but the term has been extended so as to include many irregular works, similar to the prelude, the fantasia, and the improvisation.
This word is Italian in origin, coming from the feminine past participle of 'toccare,' to touch.
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