NEURL-UA 220 Lecture 3: Electrophysiological Techniques
17 Feb 2017
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Galvani and volta identified that electrical currents can be developed in animals and generated the principles. The electrical potential of the axon is altered by the glial cells around it (myelin sheath and saltatory conduction) There is about 50 nanometers between cells in your brain (very densely packed) And it is the positive and negative molecules that carry electrical force (na+ cl-, k+) Electrical (slide 12) a. b. c. d. e. f. Two batteries in the opposite direction to symbolize the two different electrical forces in the cell (na+ and k+) Tau and tau (d) shows the rise time and the decay from for the rising phase and falling phase (slide 15) Extra cellular potential is really small so it does not have the same electrical shape or magnitude as a typical action potential i. but they are also related by their 1st derivative! But it might because the membrane acts as a capacitor g.
