Everyone knows that people vary substantially in how hard they are willing to work, but the origin of these individual differences in the brain remains a mystery. Now the veil has been pushed back by a new brain imaging study that has found an individual’s willingness to work hard to earn money is strongly influenced […]
Tag Archives | Positron Emission Tomography
Depression is one of the most common mental disorders in the elderly, but little is known about the underlying biology of its development in older adults. In a small study published in the November issue of the peer-reviewed journal Archives of General Psychiatry, UCLA researchers used a unique brain scan to assess the levels of […]
A new report in Biological Psychiatry suggests that deficits in endocannabinoid function may contribute to anorexia nervosa and bulimia. Endocannabinoids are substances made by the brain that affect brain function and chemistry in ways that resemble the effects of cannabis derivatives, including marijuana and hashish. These commonly abused drugs are well known to increase appetite, […]
Recent PET-measurements in Turku, Finland, show that the GSM mobile phone electromagnetic field suppresses glucose metabolism in temporoparietal and anterior temporal areas of the hemisphere next to the antenna. Thirteen young healthy males were exposed to the GSM signal for 33 minutes.
A brain imaging scan may help identify people with no memory or thinking problems who have the early signs of Alzheimer’s disease in their brains, according to research published in the August 24, 2011, online issue of Neurology, the medical journal of the American Academy of Neurology.
Findings from a brain imaging study may provide clues for why some individuals with heavy cigarette-smoking habits experience depressed mood upon withdrawal from smoking, according to a report in the August issue of Archives of General Psychiatry, one of the JAMA/Archives journals. The research was conducted by Ingrid Bacher, Ph.D., and colleagues from the Centre […]
The use of positron emission tomography (PET) imaging may help identify findings in brain tissue associated with Alzheimer’s disease (AD), according to two articles published Online First today by Archives of Neurology, one of the JAMA/Archives journals. As scientists seek to understand more about AD and other forms of dementia, they are exploring the use […]
In one of the first studies of its kind, UCLA researchers used a unique brain scan to assess the levels of amyloid plaques and neurofibrillary tangles — the hallmarks of Alzheimer’s disease — in adults with Down syndrome. Published in the June edition of the Archives of Neurology, the finding may offer an additional clinical tool […]