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Neuroscientist Falsifies Data?

An investigation of a well-known Dutch brain researcher finds evidence that she misrepresented data in 15 papers, but she is refuting the findings.

Written byJef Akst
| 2 min read

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For the past 2 years, prominent neuroscientist Milena Penkowa formerly of the University of Copenhagen has been hit with a slew of allegations—about both her research and business practices.

In early 2010, Penkowa, who became well known in the late 1990s and early 2000s for her work on animal models of multiple sclerosis, was suspended from the University of Copenhagen following accusations of embezzlement from a Danish neuroscience society. She was then accused of research misconduct. An investigation by the Danish Committee on Scientific Dishonesty (DCSD), the Dutch equivalent of the Office of Research Integrity, is still underway, with an official conclusion later this month, Nature reported. In the meantime, an international committee, assembled by the University of Copenhagen in February 2011 and tasked with reviewing Penkowa’s entire career, has found evidence that she likely falsified data in as many as 15 papers, fudging the number of animals used and ...

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Meet the Author

  • Jef (an unusual nickname for Jennifer) got her master’s degree from Indiana University in April 2009 studying the mating behavior of seahorses. After four years of diving off the Gulf Coast of Tampa and performing behavioral experiments at the Tennessee Aquarium in Chattanooga, she left research to pursue a career in science writing. As The Scientist's managing editor, Jef edited features and oversaw the production of the TS Digest and quarterly print magazine. In 2022, her feature on uterus transplantation earned first place in the trade category of the Awards for Excellence in Health Care Journalism. She is a member of the National Association of Science Writers.

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