Medical research

The rhythm of everything

Dawn triggers basic biological changes in the waking human body. As the sun rises, so does heart rate, blood pressure and body temperature. The liver, the kidneys and many natural processes also begin shifting from idle into ...

Neuroscience

Sound stimulation during sleep can enhance memory

Slow oscillations in brain activity, which occur during so-called slow-wave sleep, are critical for retaining memories. Researchers reporting online April 11 in the Cell Press journal Neuron have found that playing sounds ...

Psychology & Psychiatry

Lovers' hearts beat in sync, study says

(Medical Xpress)—When modern-day crooner Trey Songz sings, "Cause girl, my heart beats for you," in his romantic ballad, "Flatline," his lyrics could be telling a tale that's as much physiological as it is emotional, according ...

Neuroscience

Brain waves encode rules for behavior

One of the biggest puzzles in neuroscience is how our brains encode thoughts, such as perceptions and memories, at the cellular level. Some evidence suggests that ensembles of neurons represent each unique piece of information, ...

Psychology & Psychiatry

The knowing nose: Chemosignals communicate human emotions

(Medical Xpress)—Many animal species transmit information via chemical signals, but the extent to which these chemosignals play a role in human communication is unclear. In a new study published in Psychological Science, ...

Medical research

Dark matter DNA active in brain during day-night cycle

(Medical Xpress)—Long stretches of DNA once considered inert dark matter appear to be uniquely active in a part of the brain known to control the body's 24-hour cycle, according to researchers at the National Institutes ...

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