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The Search for the Earliest Signs of Alzheimer’s

By Guest PostMay 30, 2012Health, Sciencealzheimer's disease, alzheimers, azheimers patient, berkeley lab, beta amyloid, beta amyloid plaque, brain checkup, brain function, c 11 pib, city of berkeley, cognitive decline, computed tomography, ct scanner, dan krotz, destructive protein, earliest signs, functional mri scans, hippocampus atrophy, magnetic resonance imaging, mri scans, PET, pet image, positron emission tomography, radiotracer, william jagust

Berkeley Lab scientists help paint a more complicated picture of the devastating disease

For the past five years, volunteers from the City of Berkeley and surrounding areas have come to Lawrence Berkeley National Laboratory to participate in an ongoing study that’s changing what scientists know about Alzheimer’s disease.

The volunteers, most over the age of 70, undergo what can best be described as a brain checkup. They’re asked to solve puzzles and memorize lists of words. Magnetic resonance imaging (MRI) scans image the structure of their brains in exquisite detail. Functional MRI scans allow scientists to watch portions of their brains light up as they form memories. And Positron emission tomography (PET) scans measure any accumulation of beta-amyloid, a destructive protein that’s a hallmark of Alzheimer’s. (more…)

New Silicon Memory Chip Developed

By Guest PostMay 21, 2012Science, Technologyadnan mehonic, brain function, computer processor, energy, flash memory chips, memristors, metal, mobile devices, neurons, oxides, reram, resistive ram, semiconductor, silicon chips, silicon memory chip, silicon oxide, Technology, tony kenyon, usb sticks

The first purely silicon oxide-based ‘Resistive RAM’ memory chip that can operate in ambient conditions– opening up the possibility of new super-fast memory – has been developed by researchers at UCL.

Resistive RAM (or ‘ReRAM’) memory chips are based on materials, most often oxides of metals, whose electrical resistance changes when a voltage is applied – and they “remember” this change even when the power is turned off.

ReRAM chips promise significantly greater memory storage than current technology, such as the Flash memory used on USB sticks, and require much less energy and space. (more…)

Distinct “God Spot” in the Brain Does Not Exist, MU Researcher Says

By Guest PostApril 21, 2012Healthbrain function, brain injury, frontal lobe, god spot, higher power, human brain, spiritual experiences, spirituality

Study shows religious participation and spirituality processed in different cerebral regions

COLUMBIA, Mo. – Scientists have speculated that the human brain features a “God spot,” one distinct area of the brain responsible for spirituality. Now, University of Missouri researchers have completed research that indicates spirituality is a complex phenomenon, and multiple areas of the brain are responsible for the many aspects of spiritual experiences. (more…)

What Zen Meditators Don’t Think About Won’t Hurt Them

By Guest PostDecember 11, 2010Healtharthritis, back pain, behaviour, brain areas, brain function, cancer, chronic pain, functional magnetic resonance imaging, health benefits, joshua grant, meditators, mri data, notion of mindfulness, pain, pain perception, pain sensitivity, pierre rainville, prefrontal cortex, reduced sensitivity to pain, zen meditation

Zen meditation has many health benefits, including a reduced sensitivity to pain. According to new research from the Université de Montréal, meditators do feel pain but they simply don’t dwell on it as much. These findings, published in the month’s issue of Pain, may have implications for chronic pain sufferers, such as those with arthritis, back pain or cancer.

“Our previous research found that Zen meditators have lower pain sensitivity. The aim of the current study was to determine how they are achieving this,” says senior author Pierre Rainville, researcher at the Université de Montréal and the Institut universitaire de gériatrie de Montréal. “Using functional magnetic resonance imaging, we demonstrated that although the meditators were aware of the pain, this sensation wasn’t processed in the part of their brains responsible for appraisal, reasoning or memory formation. We think that they feel the sensations, but cut the process short, refraining from interpretation or labelling of the stimuli as painful.” (more…)

Does Sex Matter? It May When Evaluating Mental Status

By Guest PostNovember 20, 20101 commentHealth, Scienceadrianna mendrek, alzheimer, brain abnormalities, brain function, estrogen, fmri, magnetic resonance imaging, mental disorder, schizophrenia, schizophrenics, sex, sex differences, sex hormones, symptomatology, testosterone

Adrianna Mendrek. Image credit : University of Montreal

Schizophrenia is a mental disorder that differs between the sexes in terms of age at onset, symptomatology, response to medication, and structural brain abnormalities. Now, a new study from the Université de Montréal shows that there is gender difference between men and women’s mental ability – with women performing better than men. These findings, published recently in, Schizophrenia Research, have implications for the more than 300 000 affected Canadians.

“We are the first to report sex differences in brain function of schizophrenics,” says Université de Montréal professor, Adrianna Mendrek a researcher at the Centre de Recherche Fernand-Seguin, Hospital Louis-H Lafontaine. “We chose to study a task involving mental rotation of a three dimensional image because in healthy men and women, this consistently elicits differences in terms of reaction time and performance accuracy.” (more…)

Tag Archives: brain function

The Search for the Earliest Signs of Alzheimer’s

New Silicon Memory Chip Developed

Distinct “God Spot” in the Brain Does Not Exist, MU Researcher Says

What Zen Meditators Don’t Think About Won’t Hurt Them

Does Sex Matter? It May When Evaluating Mental Status