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The components of the inter-stitial fluid will be dependent on where the synapse is though yes it will be aqueous. Good old fashioned diffusion over a concentration gradient will be responsible for ensuring sufficient neurotransmitter reaches the receptors on the other side of the synaptic cleft.


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Aside from autapses and pacemaking cells, there are also some kinds of sensory neurons that exhibit a spontaneous resting (constantly depolarizing) activity that helps with encoding stimuli. The benefit of having constant activity is that stimuli can further excite or inhibit this activity, and this can be valuable information. Sensory neurons such as ...


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Here's an article I found that seems to attempt to address this question, using a kind of machine-learning approach involving "Long Short-Term Memory" (LSTM)-Recurrent Neural Networks (RNN), to classify EEG from participants who were watching either "easy" or "difficult" online lectures - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5620019/ . It's not a ...


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During development of the brain neurons undergo several steps of differentiation. They transition from neuronal progenitors to mature neurons, resulting in different types of neurons, characterized most prominently by their primary neurotransmitter. During the differentiation, different genes are expressed, which in research is used to label specific cell ...


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