Neuroscience Daily for 27 June follows 3 stories from r/neuro and r/neuroscience, moving through neuron silencing, eeg spatial limits, electromagnetic.

1. Neuron Silencing

This story from r/neuro is about a two-year struggle to silence a specific neuron population with chemogenetic and optogenetic tools that either appear toxic or show labeling without a clear effect. The post describes chemogenetic viruses that seem too toxic or too weak at the injection site, alongside optogenetic constructs that label neurites without producing convincing in vivo changes even when light power is pushed high.

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Reddit discussion

2. EEG Spatial Limits

This story is about the practical spatial limits of noninvasive EEG, discussed in the neuro community. The original question asks how dense an EEG electrode array can become before adding more sensors stops yielding meaningful new spatial information.

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Reddit discussion

3. Electromagnetic

This story is about whether electromagnetic stimulation can be used as brain therapy, from the neuroscience discussion forum Neuro. The original post asks about using electromagnetism to improve cognition, offset harm linked to insomnia, and possibly help Alzheimer's disease by boosting waste clearance.

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Reddit discussion

That's it for today.