Posted By News On September 1, 2016 - 12:06am
New research provides insight into a long-observed, but little-understood connection between chronic pain and anxiety and offers a potential target for treatment. The study's findings, published as an Article in Press in Biological Psychiatry, show that increased expression of PACAP - a peptide neurotransmitter the body releases in response to stress - is also increased in response to neuropathic pain and contributes to these symptoms.
Posted By News On September 1, 2016 - 12:05am
In a new research collaboration between the University of Witwatersrand and the University of Adelaide, previously held views on the evolutionary development of the human brain are being challenged. The findings of their studies, published today in
the Royal Society Open Science*, unseats previous theories that
the progression of human intelligence is simply related to the increase in size of the brain.
Posted By News On August 31, 2016 - 4:06pm
A follow up to a previous study finding an association between adolescent bipolar disorder and the incidence of cigarette smoking and substance use disorder finds that risk was even greater five years later, particularly among those with persistent bipolar symptoms. The report from a team of Massachusetts General Hospital (MGH) investigators, published in the Journal of Clinical Psychiatry, also finds evidence that the presence of conduct disorder, in combination with bipolar disorder, may be the strongest influence on the risk of smoking and substance use disorder.
Posted By News On August 31, 2016 - 4:00pm
Scientists today announced the discovery of a new species of pterosaur from the Patagonia region of South America. The cranial remains were in an excellent state of preservation and belonged to a new species of pterosaur from the Early Jurassic. The researchers have named this new species 'Allkauren koi' from the native Tehuelche word 'all' for 'brain', and 'karuen' for 'ancient'.
Posted By News On August 31, 2016 - 3:55pm
PULLMAN, Wash.--A Washington State University researcher has found a mechanism that strongly influences whether or not an animal is likely to drink a lot of alcohol.
"It takes them from drinking the equivalent of three to four units of alcohol in one to two hours, down to one to two," said David Rossi, a WSU assistant professor of neuroscience.
Posted By News On August 31, 2016 - 3:41pm
Scientists from the Icahn School of Medicine at Mount Sinai, the University of California, San Francisco, and Harvard Medical School used a rigorous study design to assess the biological impact of meditation compared to vacation. They examined the effect of meditation on gene expression patterns in both novice and regular meditators. The researchers found that a resort vacation provides a strong and immediate impact on molecular networks associated with stress and immune pathways, in addition to short- term improvements in well-being, as measured by feelings of vitality and distress.
Posted By News On August 31, 2016 - 3:31pm
Nagoya, Japan - When a fingertip explores the surface of a material, mechanoreceptors called Meissner's corpuscles (MCs) near the surface of the skin mainly respond to low-frequency vibration stimuli such as fluttering or slipping on the skin. Thus they are responsible for sensitivity to light touch.
Posted By News On August 31, 2016 - 3:17pm
Our brains have a detailed picture of our hands and fingers, and that persists even decades after an amputation, Oxford University researchers have found. The finding could have implications for the control of next generation prosthetics.
Posted By News On August 31, 2016 - 2:53pm
Researchers from Vrije Universiteit Amsterdam and Radboud University Nijmegen found proof that psychopathic individuals can feel fear, but have trouble in the automatic detection and responsivity to threat. For many decades fear has been put forth as a hallmark feature of psychopathy, the impairments in which would lead to bold risk-taking behavior.
Posted By News On August 31, 2016 - 2:52pm
A University of Adelaide-led project has overturned the theory that the evolution of human intelligence was simply related to the size of the brain -- but rather linked more closely to the supply of blood to the brain.
The international collaboration between Australia and South Africa showed that the human brain evolved to become not only larger, but more energetically costly and blood thirsty than previously believed.