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description: Chapter 1.1
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# From the neuron doctrine to emergent behavior

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Read the introduction to Chapter 1.1
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### Historical notes

Learn more about [Santiago Ramon y Cajal ](https://en.wikipedia.org/wiki/Santiago_Ram%C3%B3n_y_Cajal)and its contribution to neuroscience. Read his [biography](https://www.nobelprize.org/prizes/medicine/1906/cajal/biographical/) on the Nobel Prize website.

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Watch [Torsten Wiesel ](https://en.wikipedia.org/wiki/Torsten_Wiesel)tells us the story of the Nobel Prize-winning discovery of how the brain processes information through the visual cortex. Together with[ David Hubel,](https://en.wikipedia.org/wiki/David_H._Hubel) Wiesel used micro-electrodes to monitor changes to a single neuron’s action potential with visual stimuli. With this simple, but innovative experiment, they were able to map each visual stimulus to a specific region of the brain, providing insight into how the brain generates an image from visual inputs.

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### Emergence

Learn a bit more about emergence in this wonderful short tutorial by [Ted-Ed](https://ed.ted.com/):

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Watch [John Conway](https://en.wikipedia.org/wiki/John_Horton_Conway) discusses the [Game of Life](https://en.wikipedia.org/wiki/Conway's_Game_of_Life):

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### Data-driven neuroscience

Learn more about the [Human Brain Project](https://www.humanbrainproject.eu/en/):

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Read Chapter 1.1.5
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