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Researchers Reverse Effects Of Sleep Deprivation

Posted on 25. Jan, 2008 by wisdom.

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esearchers at Wake Forest University School of Medicine have shown that the effects of sleep deprivation on cognitive performance can be reversed when the naturally occurring brain peptide, orexin-A, is administered in monkeys.”These findings are significant because of their potential applicability,” said Samuel A. Deadwyler, Ph.D., professor of physiology and pharmacology at Wake Forest. “This [...]

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Hypertension Can Cause Cognitive Impairment

Posted on 21. Jan, 2008 by wisdom.

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High blood pressure appears to be associated with an increased risk for mild cognitive impairment, a condition that involves difficulties with thinking and learning, according to a report in the December issue of Archives of Neurology, one of the JAMA/Archives journals.”Mild cognitive impairment has attracted increasing interest during the past years, particularly as a means [...]

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Different Areas Of The Brain Respond To Belief, Disbelief And Uncertainty

Posted on 17. Jan, 2008 by wisdom.

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The human mind is a prolific generator of beliefs about the world. The capacity of our minds to believe or disbelieve linguistic propositions is a powerful force for controlling both behavior and emotion, but the basis of this process in the brain is not yet understood.Sam Harris, a UCLA graduate student in the lab of [...]

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Older Patients at Greater Risk for Cognitive Problems when having Surgery

Posted on 13. Jan, 2008 by wisdom.

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Patients over the age of 60 who have elective surgeries such as joint replacements, hysterectomies and other non-emergency, inpatient procedures, are at an increased risk for long-term cognitive problems, according to a new study led by Duke University Medical Center researchers.The study also found that elderly patients who developed these postoperative cognitive problems were more [...]

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Natural Hormone Effective for Depression?

Posted on 10. Jan, 2008 by wisdom.

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Novel treatment strategies for major depression with broader treatment success or a more rapid onset of action would have immense impact on public health, a new study published in the December 1st issue of Biological Psychiatry explains. This new study reports findings that support the evaluation of a potential new antidepressant agent.According to the lead [...]