The emotion control center of the brain, the amygdala, shows significantly higher levels of activation in males viewing sexual visual stimuli than females viewing the same images, according to a Center for Behavioral Neuroscience study led by Emory University psychologists Stephan Hamann and Kim Wallen. The finding, which appears in the April edition of "Nature Neuroscience," demonstrates how men and women process visual sexual stimuli differently, and it may explain gender variations in reproductive behavior.
The study adds to a growing body of research in animals and humans that indicates the amygdala plays a central role in male sexual behavior, Hamann says.
"This study helps us get closer to understanding the fundamental functions of this area of the brain," Hamann says. In addition to adding to basic neuroscience knowledge, the findings potentially could have applications that could help scientists develop therapeutic measures to help people overcome sexual addictions and other dysfunctions, he says.
Beverly Cox Clark | EurekAlert!
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A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
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