Neuroscience
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Every action has a beginning and an end (and it's all in your brain)
Jul 21 | News
(Instituto Gulbenkian de Ciencia) Rui Costa and Xin Jin describe in the latest issue of the journal Nature, that the activity of certain neurons in the brain can signal the initiation and termination of behavioral sequences we learn anew. Furthermore, they found that this brain activity...
Alzheimer's Risk Gene Causes Alterations in Shapes of Brain Protein Deposits
Jul 15 | News
Researchers at Mount Sinai School of Medicine have used a newly discovered class of biomarkers to investigate the possibility that the shape of brain protein deposits is different in people with Alzheimer's who have the highest-risk gene type than in those with the condition who have a neutral risk gene type.
Molecule Tells Brain Cells to Grow Up, Get to Work
Mar 11 | News
Stanford University School of Medicine scientists have now identified a molecular master switch that catalyzes precursor cells’ transition to mature, myelin-making mavens. The results may have implications for medical treatment, as defects in this maturation process have been observed in both multiple sclerosis and the most common kind of brain cancers in adults, known as gliomas.
Controlling Key Enzyme in Brain Offers Clue For Future Obesity Treatment
Dec 15 2009 | News
The Sirt1 enzyme in the body has generated enormous attention as a possible secret to living longer. Some scientists believe that fasting and drinking wine appear to aid in this quest because both likely activate Sirt1, unleashing its power. But researchers from Brown University, Rhode Island Hospital and the University of Texas Southwestern Medical Center have discovered that Sirt1 in the brain has its own potential health benefit: It may keep people thinner.
Study Sheds Light on Brain's Fear Processing Center
Nov 30 2009 | News
Breathing carbon dioxide can trigger panic attacks, but the biological reason for this effect has not been understood. A new study by University of Iowa researchers shows that carbon dioxide increases brain acidity, which in turn activates a brain protein that plays an important role in fear and anxiety behavior.
Immune System Activated in Recent Onset Schizophrenia
Nov 18 2009 | News
Researchers at the Swedish medical university Karolinska Institutet have discovered that patients with recent-onset schizophrenia have higher levels of inflammatory substances in their brains.
Attention Deficit & Hyperactivity in a Drosophila Memory Mutant
Nov 9 2009 | Posters
Action selection is modulated by external stimuli either directly or via memory retrieval. In a constantly changing environment, animals have evolved attention-like processes to effectively filter the incoming sensory stream. These attention-like processes, in turn, are modulated by memory. The neurobiological nature of how attention, action selection and memory are inter-connected is unknown. We describe here new phenotypes of the memory mutant radish in the fruit fly Drosophila.