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Altered Perception of Reward in Human Cocaine Addiction
10-15-2006 · Brookhaven National LaboratoryPeople addicted to cocaine have an impaired ability to perceive rewards and exercise control due to disruptions in the brain's reward and control circuits, according to a series of brain-mapping studies and neuropsychological tests conducted at the U.S. Department of Energy's Brookhaven National Laboratory.
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Keywords: altered, perception, reward, human, cocaine, addiction
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- Altered perception of reward in human cocaine addiction
10-15-2006 · EurekAlert!
People addicted to cocaine have an impaired ability to perceive rewards and exercise control due to disruptions in the brain's reward and control circuits, according to a series of brain-mapping studies and neuropsychological tests conducted at the US Department of Energy's Brookhaven National Laboratory.
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- Altered Perception of Reward in Human Cocaine Addiction
10-15-2006 · Brookhaven National Laboratory
People addicted to cocaine have an impaired ability to perceive rewards and exercise control due to disruptions in the brain's reward and control circuits, according to a series of brain-mapping studies and neuropsychological tests conducted at the U.S. Department of Energy's Brookhaven National Laboratory.
Similar news · Read more »
- Substance in tree bark could lead to new lung-cancer treatment
08-14-2007 · UT Southwestern Medical Center
UT Southwestern Medical Center researchers have discovered a treatment that counteracts the effects of cocaine on the human cardiovascular system, including lowering the elevated heart rate and blood pressure often found in cocaine users.
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- Biologists at Tufts University discover 1 reason why chromosomes break, often leading to cancer
08-02-2007 · EurekAlert!
In the past 10 years, researchers in genome stability have observed that many kinds of cancer are associated with areas where human chromosomes break. They have hypothesized -- but never proven -- that slow or altered replication led to the chromosomes breaking. A new Tufts University study proves the hypothesis after molecular biologists used yeast artificial chromosomes to find a highly flexible DNA sequence that increases fragility and stalls replication, which then causes the chromosome to break.
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- First impressions: Computer model behaves like humans on visual categorization task
04-02-2007 · EurekAlert!
In a new MIT study, a computer model designed to mimic how the brain itself processes visual information performs as well as humans do on rapid categorization tasks. This study supports the hypothesis that rapid categorization happens without feedback from cognitive or other areas of the brain. The results also indicate that the model can help neuroscientists make predictions and drive new experiments to explore brain mechanisms involved in human visual perception, cognition and behavior.
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- Brightness and darkness as perceptual dimensions
10-18-2007 · EurekAlert!
The researchers' 2-D model generalizes to the chromatic dimensions of color perception, indicating that redness and greenness (blueness and yellowness) form perceptual dimensions. Collectively, the findings suggest that human color space is composed of six dimensions, rather than the conventional three.
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- Brown scientists explain inception of perception in the brain
03-05-2007 · EurekAlert!
All of human sensation -- sight, sound, taste -- begins in the brain when information moves from the thalamus to the neocortex. In Nature Neuroscience, Brown University researchers explain how cortical cells get activated during this critical transfer. The findings shed light on the inner workings of the cortex, the biggest part of the brain, and may help explain some forms of irregular electrical brain activity such as epileptic seizures.
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- Vaccines help kick drug habits
06-21-2007 · EurekAlert!
A pair of new vaccines designed to combat cocaine and methamphetamine dependencies not only relieve addiction but also minimize withdrawal symptoms.
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- Altered expression of ultraconserved noncoding RNAs linked to human leukemias and carcinomas
09-10-2007 · EurekAlert!
A new study provides evidence that noncoding RNAs and interactions between noncoding genes play a much greater role in human cancer than was previously understood. The research, published by Cell Press in the September issue of the journal Cancer Cell, may be useful for identifying tumor-specific signatures associated with diagnosis, prognosis and treatment of cancer.
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- Face facts: People don't stand out in crowds
01-18-2008 · EurekAlert!
Why is it difficult to spot even familiar faces in a crowd? A recent study in the Journal of Vision reveals how our brains filter out visual overload -- and could help scientists develop an artificial visual system that approaches the sophistication of human visual perception.
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