Quantcast

Latest Ventral tegmentum Stories

2012-07-03 06:26:11

(Ivanhoe Newswire) -- Parkinson's disease is a disorder of the brain that leads to shaking, difficulty with walking, movement, and coordination. With 50,000 new cases reported every year it is one of the most common nervous system disorders of the elderly. Researchers are attempting to develop stem cell therapy to replace cells causing this disease. In Parkinson's disease, the loss of dopamine-producing cells in the midbrain causes well-characterized motor symptoms. Though embryonic stem...

2012-06-07 08:31:09

Using rabies virus, researcher tracks inputs to dopamine neurons A genetically-modified version of the rabies virus is helping scientists at Harvard to trace neural pathways in the brain, a research effort that could one day lead to treatments for Parkinson's disease and addiction. As described in a paper published on June 7 in the journal Neuron, a team of researchers led by Associate Professor of Molecular and Cellular Biology Naoshige Uchida used the virus to create the first-ever...

2012-03-21 15:19:55

What characterizes many people with depression, schizophrenia and some other mental illnesses is anhedonia: an inability to gain pleasure from normally pleasurable experiences. Exactly why this happens is unclear. But new research led by neuroscientists at the University of North Carolina at Chapel Hill School of Medicine may have literally shined a light on the answer, one that could lead to the discovery of new mental health therapies. A report of the study appears March 22 in the...

2012-01-18 21:25:35

New research shows how neurons interact and could lead to new treatment for addiction Harvard scientists have developed the fullest picture yet of how neurons in the brain interact to reinforce behaviors ranging from learning to drug use, a finding that might open the door to possible breakthroughs in the treatment of addiction. The finding is the result of a year-long effort by a team of researchers led by associate professor of Molecular and Cellular Biology Naoshige Uchida to examine...

2011-12-21 22:46:41

A brain cell type found where habits are formed and movement is controlled has receptors that work like computer processors to translate regular activities into habits, researchers report. "Habits, for better or worse, basically define who we are," said Dr. Joe Z. Tsien, Co-Director of the Brain & Behavior Discovery Institute at Georgia Health Sciences University. Habits also provide mental freedom and flexibility by enabling many activities to be on autopilot while the brain focuses...

2011-09-07 11:08:41

Emotional balance is regulated by molecular factors behind stress response When healthy people are faced with threatening situations, they react with a suitable behavioral response and do not descend into a state of either panic or indifference, as is the case, for example, with patients who suffer from anxiety. With the help of genetic studies on mice, scientists from the Max Planck Institute of Psychiatry have discovered two opposing neuronal regulatory circuits for the generation and...

2011-07-27 14:24:50

Animal study suggests a common process for both the pleasurable and anxiety-reducing effects of nicotine Removing a protein from cells located in the brain's reward center blocks the anxiety-reducing and rewarding effects of nicotine, according to a new animal study in the July 27 issue of The Journal of Neuroscience. The findings may help researchers better understand how nicotine affects the brain. Nicotine works by binding to proteins called nicotinic receptors on the surface of brain...

2011-05-05 07:30:17

(Ivanhoe Newswire) -- New research from the University of Chicago Medical Center has given new insight into just what makes cocaine and nicotine so addictive. According to the research, the effects of nicotine on the regions of the brain associated with addiction are similar to those of cocaine"”both create lasting changes in a person's brain by affecting similar mechanisms of memory on first contact. Scientists have already established that learning and memory are connected to one...

2011-05-04 13:10:39

Memory-like effects in brain reward pathway could contribute to drug addiction The effects of nicotine upon brain regions involved in addiction mirror those of cocaine, according to new neuroscience research. A single 15-minute exposure to nicotine caused a long-term increase in the excitability of neurons involved in reward, according to a study published in The Journal of Neuroscience. The results suggest that nicotine and cocaine hijack similar mechanisms of memory on first contact to...

2011-02-23 22:17:39

The lateral habenula is hyperactive in rat models of human depression A team of neuroscientists at Cold Spring Harbor Laboratory (CSHL), Brookhaven National Laboratory (BNL) and UC San Diego (UCSD) has collected evidence suggesting that a previously overlooked portion of the brain could be a prime locus of human depression. In two rat models of human depression, the scientists have demonstrated that neurons in a tiny area in the central brain called the lateral habenula (LHb) are...


Word of the Day
bibliopole
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'
Related