Nanowire Mesh Monitors Mouse Brains - "Injectable 'neural lace'* brain-computer interface works in mice for months at a time." (via) [more inside]
Is Psychometric g a Myth? - "As an online discussion about IQ or general intelligence grows longer, the probability of someone linking to statistician Cosma Shalizi's essay g, a Statistical Myth approaches 1. Usually the link is accompanied by an assertion to the effect that Shalizi offers a definitive refutation of the concept of general mental ability, or psychometric g." [more inside]
Brainbow. Using some very cool genetic tricks, Harvard scientists have found a way to make transgenic mice that express various mixtures of different coloured fluorescent proteins in their neurons. The result, individual brain cells with up to 90 distinct colours. Not surprisingly, this visually impressive work is in this month's issue of Nature.