Admittedly, neuroscientists have not yet attached functional magnetic resonance imaging machines to users in order to measure their brain’s dopamine production as they experience the carousel (or any other) interaction design pattern. To date, our insight into the brain’s responses to the patterns we encounter in the world is limited to what we can extrapolate to humans from experiments that have been conducted on monkeys and to inferences we can draw from the work of psychologists.
What is the Self? Who is the I that asks these questions? .. Peter Bauman at the Being Human conference (via FORA.tv - Being Human: Welcome & Overview)