EEOB 2520 Lecture Notes - Lecture 20: Cochlea, Preganglionic Nerve Fibers, Eustachian Tube
29 Apr 2016
School
Department
Course
Professor
Document Summary
One neuron will get most of the stimulus. Everything is inhibiting everything else ( by hyperpolarizing) Neurons with the most ap frequency will inhibit the others more than the ones with the least ap frequency will inhibit. Ratio is increased (bigger difference) that cns sees sharpening the patterning contrast. Ex: concert tickets if you want to get to front row of concert you want to go the most (you are strongest stimulated so bigger ap frequency) people around you. Have 3 afferent neurons a, b, c. A = 5, b = 15, c = 5. B has the most stimulus, so its inhibitory effects will be stronger than what a and c does. So after lateral inhibition, will be a=1, b=6, c= 1 sharpen the contrast. When you rub the neighboring ones (a and c), you increase its ap frequency to 17 and 17, so it is able to inhibit b more because it is only at 15.
