💡 Gentle Blue Light Beam
Acts like a remote-control light switch
🚪 Tiny Light-Activated Door
Borrowed from green pond algae (Closed)
🔑 Tiny Light Sensor
Unlocks the door when blue light hits it
✨ Energy Sparks
Waiting outside the cell
🛡️ Brain Cell Surface
Protective outer wall of the cell
⚡ Message Sent to Other Brain Cells!
Wakes up neighbors to create thoughts & actions
2026 Nobel Prize in Medicine
Deisseroth • Hegemann • Nagel
A Light Switch for the Brain
Watch how a gentle beam of blue light turns living brain cells ON and OFF!
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