Rough Diamonds

Underrated opportunities in science, technology, and society

The hottest Substack posts of Rough Diamonds

And their main takeaways
23 implied HN points 09 Feb 24
  1. The author's writing process involves minimal editing and a lot of continuous writing from years of experience.
  2. The author emphasizes the importance of clear, concise writing using strong, plain language.
  3. In addition to focusing on logic in writing, the author also highlights the importance of evoking the right emotions and associations in the reader.
8 implied HN points 13 Jan 24
  1. People handle stress differently, and there are identifiable brain patterns related to emotional resilience.
  2. Emotion regulation techniques like reappraisal can reduce negative emotions and show increased brain activity in specific regions.
  3. Studies suggest that activation in certain brain regions is linked to successful emotional regulation and reduced amygdala activity.
4 implied HN points 20 Jan 24
  1. The prefrontal cortex is a key region involved in emotional regulation.
  2. The superior frontal gyrus and inferior temporal gyrus are also associated with emotional regulation.
  3. Some brain regions may show activity during emotional regulation tasks that could be due to the experimental design.
3 implied HN points 27 Jan 24
  1. EEGs measure brain activity by recording fluctuations in electrical signals.
  2. Different brain wave frequencies on EEGs correspond to different mental states like sleep, relaxation, alertness, and conscious perception.
  3. Consumer-grade EEG devices are noisier than clinical ones but can still provide useful insights into brain activity, especially for applications like monitoring drowsiness or stress.
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2 HN points 05 Jan 24
  1. Noninvasive brain activity imaging allows for measuring and mapping brain activity without surgery or bulky machines.
  2. Different imaging modalities like fNIRS, functional ultrasound, and portable MEG offer varying levels of convenience, spatial resolution, and depth of brain activity detection.
  3. Innovations like functional ultrasound and OPM-MEG show promise in providing noninvasive and portable options for measuring brain activity.