Hormone alters electric fish’s signal-canceling trick

Hormone alters electric fish’s signal-canceling trick

New research from Washington University in St. Louis shows that testosterone — which naturally triggers male electric fish to broadcast slightly different signals during the breeding season — also alters a system in the fish’s brain that enables the fish to ignore its own signal. The study by biologists Matasaburo Fukutomi and Bruce Carlson in Arts & Sciences is published in Current Biology.
Good smells, bad smells: It’s all in the insect brain

Good smells, bad smells: It’s all in the insect brain

Barani Raman and his lab at the McKelvey School of Engineering studied the behavior of the locusts and how the neurons in their brains responded to appealing and unappealing odors to learn more about how the brain encodes for preferences and how it learns.
Trump indictment does not violate First Amendment

Trump indictment does not violate First Amendment

Former President Donald Trump was indicted this month over his efforts to overturn the results of the 2020 election. He plans to fight the charges by claiming in part that the prosecution would violate his right to freedom of speech. Not so, says First Amendment expert Greg Magarian.
Fanning the flames

Fanning the flames

Research from Rajan Chakrabarty and Rohan Mishra at the McKelvey School of Engineering reveals an unexpected impact of wildfires on climate change.
Study defines disparities in memory care

Study defines disparities in memory care

Members of minoritized racial or ethnic groups and people who live in less affluent neighborhoods are less likely than others to receive specialized care for dementia, including Alzheimer’s disease, a new study from the School of Medicine indicates.
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