I know - it’s heartbreaking that the video ends right when we get to the exciting part, but see the black wavering line in the bottom right? That’s what they look like after they’ve connected together in a petri dish
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The process of neurons connecting in a developing body is different to the kind of connections that form between neurons when we are learning new things
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When we are developing in utero, you’ll find these ”growth cones,” at the tip of every growing neuron, actively searching their way between cells to find the right spot to connect to. When they make their connection, they become resorbed and disappear
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Growth cones aren’t responsible for the connections between neurons that form in learning + memory (synapses). Those connections are much smaller + appear as thousands of tiny bumps along the length of the part of a neuron called a dendrite. More here:https://youtu.be/1fnm1vGGRYI
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This is a video I took several years ago and has been sped up using the magic of technology - this was actually the growth that occurred over the space of 20 minutes.
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What imaging was used to video this? And from what species are the neurons?
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Live imaging, Phase contrast, dorsal root ganglion sensory neurons from rodent
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This reminds me a lot of chemotaxis (?) in slime moulds searching for nutrients, and also me searching for coffee in the morning.
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Similar to refueling pods four in flight refueling of fighter jets.
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I have the urge to cheer them on
Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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Čini se da učitavanje traje već neko vrijeme.
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