Media Algorithms Keep You in a Bubble

Engagement algorithms are simple. If you, the user, have engaged with a certain topic in the past, you are likely to engage in the future. So when a new piece of content is created on the platform that belongs to that topic, why not show it to you? You might even give it a thumbs up (or like, or heart). This selection for engagement places you, the user, in an engagement maxima. You are maximally engaged given the topics you have expressed interest in in the past. But what happens after a f...

 How Brains Respond to Positive/Negative Feedback in Child...

In children up to eight or nine years old, the dopamine-modulating reward center in the nucleus accumbens reacts strongly to positive feedback (activating the prefrontal cortex) and minimally to negative feedback. In older children, increased activation still occurs in the PFC when dopamine is released in response to positive feedback (particularly in response to correct answers/ predictions). However, the greatest age-related change is the higher reactivity of the NAc to negative feedback an...