To understand human behaviors, it is crucial to understand the motives behind them. So far, there was no direct way to identify motives. Psychologist and neuroscientist Grit Hein, Ernst Fehr et al found that the way relevant brain regions communicate with each other is altered depending on the motives driving a specific behavioral choice. This interplay between brain regions allowed them to identify the underlying motives. These motives could not be uncovered by observing the person’s choices, or based on the brain regions that are activated during the decision-making.
Empathy-based altruism is primarily characterized by a positive connectivity from the anterior cingulate cortex (ACC) to the anterior insula (AI), whereas reciprocity-based altruism additionally invokes strong positive conn...
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