Higher cutoffs led to more accurate identification of high-functioning
Diagnosticians would do well to raise the bar when testing high-functioning people for pre-clinical signs of Alzheimers disease, according to a new study. Higher test cutoffs, rather than the standard group average, more accurately predicted how many highly intelligent people would deteriorate over time. This finding is reported in the January issue of Neuropsychology, which is published by the American Psychological Association (APA).
Early diagnosis of Alzheimers has taken on growing importance, given new medical and psychological interventions that can slow (but not stop) the course of the disease. In addition, highly intelligent people have been found, on average, to show clinical signs of Alzheimers later than the general population. Once they do, they decline much faster. Thought to reflect their greater mental reserves, this different pattern may call for a different approach to diagnosis.
Pam Willenz | EurekAlert!
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MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
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Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
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The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
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