Recently in The Brain Category

"'This is the part of the brain involved in knowing that you want something,' she said. 'When people who are not adjusting well are having these sorts of thoughts about the person, they are experiencing this reward pathway being activated. They really are craving in a way that perhaps is not allowing them or helping them adapt to the new reality.'" It's darker than you know in those complicated shadows...A new study finds that unrelenting grief works on the brain differently than the usual kind of post-traumatic depression. "The same brain system is involved in other powerful cravings, such those that afflict drug addicts and alcoholics...It's like they're addicted to the happy memories."

"We appear to be bringing the worst affected parts of the brain functionally back to life." Is Alzheimer's disease about to go the way of polio? A new drug known as rember, according to scientists in England, seems to halt and even roll back the symptoms of Alzheimer's. "We have demonstrated for the first time that it may be possible to arrest progression of the disease by targeting the tangles that are highly correlated with the disease. This is the most significant development in the treatment of the tangles since Alois Alzheimer discovered them in 1907."

Ok, this one's a bit creepy. By way of Webgoddess, watch the rotating dancer to ascertain whether you're left-brained or right-brained. I'm pretty right-brained, it seems (which makes sense, since I'm both left-handed and left-footed). But, if I changed tasks while the dancer was on -- say went to click another window or focused on the list at left, she'd sometimes switch direction. Weird...well, I just hope my right-brain knows what my left-brain is doing.

Is political conflict bred in the bone (or, put less charitably, do some among us just have an easier time with higher-order thinking)? A new joint NYU-UCLA neurobiological study finds once again that left- and right-leaning brains function differently, with liberal minds more receptive to change than their conservative counterparts. "Dozens of previous studies have established a strong link between political persuasion and certain personality traits. Conservatives tend to crave order and structure in their lives, and are more consistent in the way they make decisions. Liberals, by contrast, show a higher tolerance for ambiguity and complexity, and adapt more easily to unexpected circumstances...[In this case] respondents who had described themselves as liberals showed 'significantly greater conflict-related neural activity' when the hypothetical situation called for an unscheduled break in routine. Conservatives, however, were less flexible, refusing to deviate from old habits 'despite signals that this...should be changed.'"

Eternal sunshine of the spotless mind! Each pray'r accepted, and each wish resign'd. Life imitates art as researchers hone in on drugs that will potentially erase traumatic memories. "'This is all very preliminary,' said Dr. Roger Pitman, a Harvard Medical School psychiatrist. 'We're just getting started. There is some promising preliminary data but no conclusions.'"

Love is a stranger in an open car...or is it just a much-needed dopamine fix? Somebody writes this story every Valentine's Day. Still, I guess it's something to keep in mind. (And sorry, Berk, you may be my Valentine again this year, but the same type of deconstruction applies to you. No hard feelings, bud.)

"'People are born to dance,' Ebstein told Discovery News. 'They have (other) genes that partially contribute to musical talent, such as coordination, sense of rhythm. However, the genes we studied are more related to the emotional side of dancing -- the need and ability to communicate with other people and a spiritual side to their natures that not only enable them to feel the music, but to communicate that feeling to others via dance." Looks like the Red Shoes are just a placebo -- According to recent research at Hebrew University's Scheinfeld Center for Genetic Studies, some people are just hardwired to dance. Now if only they could figure out why some people start conga lines or insist on breaking into the Electric Slide. (Via Dangerous Meta.)