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title: Visual Perceptual Exercise by Andrew Huberman
created: 2024-11-18T09:18:12
modified: 2025-12-06T07:40:05
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= Space-Time Bridging (時空橋樑) = Shift between different time domains [^1]

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This is a useful tool for our nervous system to manage [stress](stress-and-anxiety.md) and enhancing cognitive flexibility.

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# Steps

1. Start with eyes closed, focusing on the internal state of body sensations like breathing and heart rate (<mark>Fine/Thin Time Slicing 高幀率</mark>)
2. Then eyes open, focusing on the surface of one’s body.
3. Gradually look further into the distance, expanding your perception from near to far, maybe 10 feet away.
4. Then look at a location off to the horizon. Imagine yourself in a broader context, [like viewing the whole world or the entire globe.](https://en.wikipedia.org/wiki/Overview_effect) (<mark>Coarse/Thick Time Slicing 低幀率</mark>)
5. And then back to one’s immediate surroundings by closing one’s eyes.

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By focusing on a specific spot, you activate brain circuitry that releases neuro chemicals, increasing alertness. Conversely, relaxing your visual attention can create a panoramic vision.

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# Other Tools

* Overt Visual Focus
	* Physically focus your visual attention on a **specific point** (or “**spotlight**”) will help maintain focus during bouts of goal work.
* Covert Visual Focus
	* Focus your eyes on one location, such as a pen, but direct your focus elsewhere in the room or location that you’re in.

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[Visualization](visualization.md)

[^1]: <https://www.youtube.com/watch?v=eC9fiJBdMG0&t=1982s>