Distinct neuron populations for positive and negative emotions
What decides whether you like or dislike something?

MIT neuroscientist Kay Tye and her team at the Picower Institute for Learning and Memory have dug deeper in the networks of the amygdala, the brain region associated with assigning valence or significance. They discovered that within the amygdala there are specific populations of neurons for good and bad feelings. Neurons projecting to the nucleus accumbens (commonly known as reward centre) are associated with positive valence while those projecting to the central amygdala were associated with negative valence. Dr Tye predicts that these two population of neurons engage in cross-talk and might influence each other.

Read the full story: neurosciencenews.com