“Oh yes, darling, it’s fabulous!” Art appreciation classes might help you enthuse over other people’s creative efforts, but zapping your brain might work just as well. Zaira Cattaneo at the University of Milan Bicocca in Italy and her colleagues showed paintings to 12 people. Each rated the images before and after receiving either transcranial direct current stimulation, which uses electrodes to deliver a small current to the left dorsolateral prefrontal cortex (DLPFC) – a brain area involved in processing emotion – or a mock treatment in which no current was used.
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