Sleep apnea

Engineer studies sleep apnea

Most people snore occasionally, and about one in four Americans snore frequently. Snoring tends to increase with age and weight gain. And studies show that about 60 percent of adult males are habitual offenders. (Their spouses ...

Psychology & Psychiatry

Imagining an object can change how we hear sounds later

Seeing an object at the same time that you hear sound coming from somewhere else can lead to the "ventriloquist illusion" and its aftereffect, but research suggests that simply imagining the object produces the same illusory ...

Neuroscience

Looking deeper into brain function

To uncover connections between brain regions and specific cognitive functions, neuroscientists have long made extensive use of techniques like functional resonance imaging (fMRI). First introduced in the 1990s, the method ...

Psychology & Psychiatry

Building tolerance to anxiety is key to OCD symptom relief

Excessive hand washing, out of a fear of contamination or germs, is one of the most common and best-known examples of obsessive-compulsive disorder, or OCD. Though OCD can't be "cured," symptoms can be significantly reduced ...

Psychology & Psychiatry

Research links locus coeruleus activity with hyperarousal in PTSD

A new study in Biological Psychiatry has linked signs of heightened arousal and reactivity—a core symptom of posttraumatic stress disorder (PTSD)—to overactivity of the locus coeruleus (LC), a brain region that mediates ...

Neuroscience

Brain imaging results skewed by biased study samples

Any scientist who studies groups of people knows that the characteristics of the "sample"—the group of people selected for the study—can profoundly impact the study's findings. To produce the most accurate findings, a ...

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