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Dr. Lisa Feldman Barrett: How to Understand Emotions

Huberman Lab

NOTE

Sunmaries: The Convergence of Information in the Brain

As information is passed along the neurons, there is convergence onto a smaller number of larger neurons. These larger neurons have access to a lot of information, but in a coarser form. The cortex represents features, starting from lines and edges to shapes, faces, and more. This progression creates summaries of summaries of summaries. Moving along the neuro axis, there are more and more summaries, corresponding to mental features like lines, edges, circles, squares, and faces. In the midline at the front, the features become multimodal summaries, lower dimensional and abstract, such as threat, reward, pleasure. The brain treats different patterns associated with these summaries as equivalent.

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