fMRI

Rethinking Fast and Slow

Rethinking Fast and Slow

Do people intuitively favor certain actions over others? In some dual-process research, reaction-time (RT) data have been used to infer that certain choices are intuitive. However, the use of behavioral or biological measures to infer mental function, popularly known as ‘reverse inference’, is problematic because it does not take into account other sources of variability in the data, such as discr...

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When Grandma Beats You at Scrabble

Have you ever been beaten at the classic word game Scrabble by an 85-year-old grandmother? (I have, and I’m usually pretty good at wordsmithing.) Some elderly people with super-sharp memory don’t seem to suffer the memory loss that assails most people as they age. Why?

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Targeting Cancer Cells with Nanoparticles

Cancer is the number two cause of death in the United States, killing over 550,000 people annually according to the American Cancer Society’s 2009 Cancer Statistics report.

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You Are What You Don’t Eat

Longevity scientists and seekers have been exploring any number of routes towards increasing healthful years and, ultimately, living beyond the normal biological lifespan for humans.

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Nanoparticle-delivered ‘suicide’ genes slowed ovarian tumor growth

Nanoparticle delivery of diphtheria toxin-encoding DNA selectively expressed in ovarian cancer cells reduced the burden of ovarian tumors in mice, and researchers expect this therapy could be tested in humans within 18 to 24 months, according to a report in Cancer Research, a journal of the American Association for Cancer Research.

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Brain emotion circuit sparks as teen girls size up peers

What is going on in teenagers' brains as their drive for peer approval begins to eclipse their family affiliations? Brain scans of teens sizing each other up reveal an emotion circuit activating more in girls as they grow older, but not in boys.

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