Recent quotes:

Acting and thinking: Are they the same for our brain? -- ScienceDaily

"Why is the very same region important for so many different tasks? What is the relationship between motor skills, motor learning and the development of cognition in humans? These are the questions that lie at the heart of our research." A review of all the data currently available suggests that the tasks share a common process, which the scientists have termed "emulation." This process, which consists of planning and representing a movement without actually performing it, activates the brain network in the same way as real movements. "But we hypothesise that the brain goes a step further," explains Dr Ptak: "It uses such dynamic representations to carry out increasingly complex cognitive functions beyond just planning movements."

Bird contagion

This week, scientists report that New Zealand parrots can spread positive emotion, too — or at least behaviour that could indicate their state of mind. The researchers recorded the play calls of keas (Nestor notabilis) and played them back to groups of wild keas. When the birds heard the sounds, they played more vigorously and longer — certainly more than when they heard the calls of a South Island robin (Petroica australis). The calls did not, however, seem to act as an invitation to join existing birds at play. Some keas that heard them preferred to start their own play — typically embarking on feats of aerial acrobatics. With self-confessed anthropomorphism, the scientists suggest that the play calls of these birds act in the same way as infectious laughter in people (R. Schwing et al. Curr. Biol. 27, R213–R214; 2017). In its homeland, the playful kea is called the clown of the mountains. And as every good clown knows: cry and you cry alone. But laugh and the world laughs with you.