Monthly Archives: October 2012

Late-onset Alzheimer’s disease (LOAD) can occur sporadically or be inherited. In the inherited disorder, there is evidence of maternal inheritance in more than 20% of cases. The pattern is consistent with mitochondrial inheritance. Previous studies have observed decreased glucose metabolism … Continue reading →

Impaired bone growth is observed in many children exposed to stress, but whether the underlying cause is psychological or secondary to a variety of chronic disorders has been unclear. Bone growth may be affected by stress through different mechanisms, including … Continue reading →

 The ability to recall accurately vast amounts of autobiographical information spanning most of a lifetime, without the use of practiced mnemonics, is very rare. Only a handful of people have been identified so far. Testing of these individuals has shown … Continue reading →

Sleep quality and amount are known to decline with age and to a greater extent in Alzheimer disease patients. Using the APPswe/PS1δE9 mouse model of Alzheimer’s disease the authors of this study found that amyloid beta (Aβ) aggregation appears to … Continue reading →

The growth pattern of white-matter tracts in the brain is highly correlated with reading ability. Literacy requires the integration of activity in brain areas involved in vision, hearing and language. Efficient communication between these areas is essential for proficient reading. … Continue reading →

A core brain network appears to be engaged in remembering the past and envisioning the future. This network overlaps with the so-called default-mode network, which shows higher activity when demands for focused attention are low. Here, the authors show that … Continue reading →