People who engage in activities that exercise the brain, such as reading, writing, and playing card games, may delay the rapid memory decline that occurs if they later develop dementia, according to a study published in Neurology®,.
The study involved 488 people age 75 to 85 who did not have dementia at the start of the study. They were followed for an average of five years; during that time 101 of the people developed dementia.
Depression among preschoolers appears to be a continuous, chronic condition rather than a transient developmental stage, according to a report in the Archives of General Psychiatry.
Treatment for mental health conditions is becoming more common in the United States, according to report in the August issue of Archives of General Psychiatry. "Several factors may have contributed to this trend, including a broadening in concepts of need for mental health treatment, campaigns to promote mental health care and growing public acceptance of mental health treatments," the authors write.
Researchers at the University of Washington have been able to illuminate brain tumors by injecting fluorescent nanoparticles into the bloodstream that safely cross the blood-brain barrier which protects the brain from infection. The nanoparticles remained in mouse tumors for up to five days and did not show any evidence of damaging the blood-brain barrier, according to results published this week in the journal Cancer Research.
Results showed the nanoparticles improved the contrast in both MRI and optical imaging, which is used during surgery.
Whether it's highlighted in major news headlines about Argentinean affairs and Ponzi schemes, or in personal battles with obesity and drug addiction, individuals regularly succumb to greed, lust and self-destructive behaviors. New research from the Kellogg School of Management examines why this is the case, and demonstrates that individuals believe they have more restraint than they actually possess—ultimately leading to poor decision-making.
Anorexic patients drastically reduce food intake and are often not capable of changing their behavior. This can lead to life-threatening weight loss. Using MRI technology, scientists at Heidelberg University Hospital have discovered for the first time processes in brain metabolism that explain this disturbed eating behavior.
In a major step in spinal cord injury research, scientists at the University of California, San Diego School of Medicine have demonstrated that regenerating axons can be guided to their correct targets and re-form connections after spinal cord injury. Their findings will be published in the advance online edition of the journal Nature Neuroscience on August 2.
Bethesda, MD (Aug. 1, 2009) — Patient satisfaction with their medications and the quality of interactions with their doctor reflect the success of gastroesophageal reflux disease (GERD) therapy, according to a new study in Clinical Gastroenterology and Hepatology, the official journal of the American Gastroenterological Association (AGA) Institute.
Westchester, Ill. —A study in the Aug.1 issue of the journal SLEEP found that alcohol consumption during pregnancy and small body size at birth predict poorer sleep and higher risk of sleep disturbances in 8-year-old children born at term. Findings are clinically significant, as poor sleep and sleep disturbances in children are associated with obesity, depressive symptoms, attention deficit hyperactivity disorder, and poor neurobehavioral functioning.
Common and clumsy-looking, the blow fly is a true artist of flight. Suddenly changing direction, standing still in the air, spinning lightning-fast around its own axis, and making precise, pinpoint landings – all these maneuvers are simply a matter of course. Extremely quick eyesight helps to keep it from losing orientation as it races to and fro. Still, how does its tiny brain process the multiplicity of images and signals so rapidly and efficiently?
Cancer researchers at Georgetown University's Lombardi Comprehensive Cancer Center have successfully tested a small, engineered antibody they say shuts down growth of human glioblastoma tumors in cell and animal studies. Glioblastoma is the deadliest of brain cancers and has no effective treatment.
In the journal Oncogene, the researchers demonstrate how this antibody latches onto a receptor that studs the outside of glioblastoma cells, preventing a growth factor protein from binding to it and activating growth pathways in the tumors.
It is projected that nearly $13 billion is spent every year in headache treatment and loss of time from work. But according to a new study in Plastic and Reconstructive Surgery®, the medical journal of the American Society of Plastic Surgeons (ASPS), there is hope for severe and frequent migraine sufferers who can't find relief in conventional remedies.
The effects of amphetamines on gene expression in zebrafish have been uncovered. This new study, published in BioMed Central's open access journal Genome Biology, provides clues to the genetics that underlie susceptibility to addiction by describing the nad zebrafish mutant, which does not feel the rewarding effects of the drugs.
The incidence of a rare and deadly tumor called primary central nervous system lymphoma (PCNSL) is two times higher in black Americans, ages 20 to 49, than in white Americans, according to a Mayo Clinic study published in the Journal of Neuro-Oncology. In patients older than 49, the results were reversed. White Americans were twice as likely as black Americans to be diagnosed with PCNSL.
One of the most well-known psychological tools is the Rorschach Inkblot Test. A viewer looks at ten inkblots, one at a time, and describes what they see. The rationale behind this test is the idea that certain aspects of the subject's personality will be exposed as they are interpreting the images, allowing for the possible diagnosis of various psychological disorders. However, does the inkblot really reveal all?