Editor's Selections: Pre-Menstrual Dysphoric Disorder, Social Media, Magnetic Cows, and Language

Here are my Research Blogging Editor's Selections for this week:

• To start us off, a pair of killer posts by tag-teaming science-blogging super-duo Kate Clancy and Scicurious. First, check out The cerebellum and premenstrual dysphoric disorder at Sci's place, and then read Kate's take on the same research at Context and Variation. Or read Kate's first and then check out Sci's...either way.
• Richard Landers tells us that There Are Four Kinds of Social Media Users. What kind are you?
• Doctor Zen of NeuroDojo asks a question we've all been wondering: are cows magnetic sensors? What I want to know is if a steak will stick to the front of my fridge.
• A nice post over at the Raving Psychology blog on language metaphors and time. Does language shape thought?