Professor, you stated that as the neurotransmitters are released, the gates open up for the ions to flow through the dendrites and change the membrane potential. I want to ask whether the dendrites receive signals in form of current spikes, or a constant small voltage difference caused by the ion flow that create a constant small current and these current signals add up at the node and creates spikes in the axon? If the latter is true then why in one example, we stimulated a dendrite with spikes of current, why not a constant potential difference?
Hi, The circuit model mentions variable resistor as the counterpart for ion gates, but resistors, with flow of current, cause heat dissipation and so is this heat dissipation accounted for in the mathematical model? and what about using logic gates in place of variable resistor for the ion channels, as the input current can be used to operate the logic gates, given the input to the logical gates consists of A- input to the cell and B- resting potential/noise of the cell.
All of this is happening in an aqueous environment, a water sink. The flow of ions only occurs when the protein channels open. It is not a heat-producing process to any appreciable degree. By the way, if you work out the physics you can see that it takes very very very little ions to generate the membrane potentials compared to the number of ions in solution both within and without the cell.
Thank you!
Where could I find the reading list you suggested and posted?
Can this be rebranded as Cellectronics?
Professor, you stated that as the neurotransmitters are released, the gates open up for the ions to flow through the dendrites and change the membrane potential. I want to ask whether the dendrites receive signals in form of current spikes, or a constant small voltage difference caused by the ion flow that create a constant small current and these current signals add up at the node and creates spikes in the axon? If the latter is true then why in one example, we stimulated a dendrite with spikes of current, why not a constant potential difference?
Did the scientists measure the signals that flow through dendrites, if yes, please provide the references. Thanks.
Hi,
The circuit model mentions variable resistor as the counterpart for ion gates, but resistors, with flow of current, cause heat dissipation and so is this heat dissipation accounted for in the mathematical model? and what about using logic gates in place of variable resistor for the ion channels, as the input current can be used to operate the logic gates, given the input to the logical gates consists of A- input to the cell and B- resting potential/noise of the cell.
All of this is happening in an aqueous environment, a water sink. The flow of ions only occurs when the protein channels open. It is not a heat-producing process to any appreciable degree. By the way, if you work out the physics you can see that it takes very very very little ions to generate the membrane potentials compared to the number of ions in solution both within and without the cell.
how can i get the power points?please help me
Can I get the course text you based on which you based this lecture?
abut