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Researchers Find The Brain Processes Sight And Sound In Same Manner
Although sight is a much different sense than sound, Georgetown University Medical Center neuroscientists have found that the human brain learns to make sense of these stimuli in the same way.
The researchers say in a two-step process, neurons in one area of the brain learn the representation of the stimuli, and another area categorizes that input so as to ascribe meaning to it -- like first seeing just a car without a roof and then analyzing that stimulus in order to place it in the category of "convertible." Similarly, when a child learns a new word, it first has to learn the new sound and then, in a second step, learn to understand that different versions (accents, pronunciations, etc.) of the word, spoken by different members of the family or by their friends, all mean the same thing and need to be categorized together.
"A computational advantage of this scheme is that it allows th
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EEG Can Determine If A Depressed Patient Will Do Better On Antidepressants Or Talk Therapy
People react differently to positive events in their lives. For some, a small reward can have a large impact on their mood, while others may get a smaller emotional boost from the same positive event.
These reactions can not only be objectively measured in a simple office evaluation, but researchers from the University of Illinois at Chicago report that they can help clinicians determine whether a patient with anxiety or depression is responding to treatment and if they will do better on an antidepressant drug, or in talk therapy. Their results are published in the Journal of Clinical Psychiatry.
“About 50% of people prescribed either selective serotonin reuptake inhibitors, or SSRIs, — a class of antidepressants — or cognitive behavioral therapy get better with those treatments,” said Katie Burkhouse, assistant professor of psychiatry in the UIC College of Medicine and lead author on
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Checking In (And Checking Up) On Dad This Father’s Day
While dad may “know best” about many things, he may not realize that keeping up with simple health screenings may protect him from developing cancer. With June being Men’s Health Month and Father’s Day falling during this period, it’s a good time to remind the men in your life to be proactive with their health by taking part in the following screenings:
Colorectal: Typically it is recommended that colorectal cancer screening should start at age 50 or earlier based on the risk factors determined by their primary care doctor. These risk factors include family history of colon or rectal cancer and overall health. Earlier this month, the American Cancer Society issued updated screening guidelines to begin this regimen beginning at age 45 and repeated every 10 years for those of average risk. Screening includes colonoscopy and other forms of visual tests, as well as stool-based tests.
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New Radiation Therapy Technique Aims To Preserve Sexual Function
“Will treatment make me impotent?” It’s a question on the minds of many men as they are making decisions about prostate cancer treatment. A multicenter clinical trial being led by UT Southwestern physicians is testing a technique for sparing nerve bundles and arteries involved in sexual function to preserve potency in patients getting radiation therapy for prostate cancer.
“Nowadays, mortality after treatment for localized prostate cancer is as low as 1% at 10 years,” said Dr. Neil Desai, Assistant Professor of Radiation Oncology, a Dedman Family Scholar in Clinical Care, and Principal Investigator of the POTEN-C trial. “By contrast, as many as half of all patients being treated for prostate cancer will experience some decline in sexual function. It is appropriate, therefore, that our focus has shifted to this aspect of quality of life.”
The new technique being tested involves reducing