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image: Lost Memories Reactivated in Mice

Lost Memories Reactivated in Mice

By Kerry Grens | May 29, 2015

Using optogenetics, researchers excite selected neurons to reinstate a fear memory that had been blocked.

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image: Gene Linked to Pain Insensitivity

Gene Linked to Pain Insensitivity

By Kerry Grens | May 27, 2015

People with a congenital disorder that makes them unable to feel pain have mutations in a histone-modifying gene. 

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image: Light Sensors in Cephalopod Skin

Light Sensors in Cephalopod Skin

By Kerry Grens | May 21, 2015

Squid, cuttlefish, and octopuses possess vision machinery in their skin.

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image: Image of the Day: Amazing Astrocytes

Image of the Day: Amazing Astrocytes

By The Scientist Staff | May 19, 2015

They aren't neurons, but in rats, glial cells in the brain called astrocytes (red) play a major role in repetitive motions like chewing and breathing.

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image: Clinical Epidemiology Pioneer Dies

Clinical Epidemiology Pioneer Dies

By Jenny Rood | May 18, 2015

Evidence-based medicine advocate David Sackett has passed away at age 80.

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Researchers develop a CRISPR-based, two-phage system that sensitizes resistant bacteria to antibiotics and selectively kills any remaining drug-resistant bugs. 

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image: Diagnosing Sepsis

Diagnosing Sepsis

By Jef Akst | May 14, 2015

An 11-gene set may help identify sepsis early, before it’s too late.

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image: Opinion: New Models for ASDs

Opinion: New Models for ASDs

By Alysson R. Muotri | May 14, 2015

The study of mini “brains” in a dish, derived from patient cells, offers a novel approach for autism spectrum disorder research.

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image: Liberia Declared Free of Ebola

Liberia Declared Free of Ebola

By Jef Akst | May 12, 2015

After the West African nation goes more than a month with no new reported cases of viral infection, the World Health Organization says the country is Ebola-free.

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image: Long-Lived Virus

Long-Lived Virus

By Jef Akst | May 8, 2015

New research suggests Ebola can survive on surfaces for days and can be transmitted via semen.

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