NROC64H3 Lecture Notes - Lecture 2: Illuminance, Proprioception, Phosphodiesterase
27 Sep 2015
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In the resting state, rods and cones are depolarized. Bipolar cells: they can either be bipolar cells that preserve the effects seen in photoreceptors i. e. they show the same effects, or they can show the opposite effects. If the effect is preserved, it is denoted with a plus sign + If the first cell is depolarized, the subsequent cell will also depolarize. If the effect is reversed, one cell will be depolarized, and the subsequent cell will be hyperpolarized. In light, cone is quiet and bipolar is active. In darkness, cone is active, and bipolar is quiet. For flat bipolar cells, the receptor is excitatory. Bipolar cells: the receptive fields have a center and surrounding it. Amacrine cells: at least 10 or more of these are known, they have a set of functions, one is illustrated in the diagram. Sehar qureshi: delta - subtraction, to calculate absolute differences.
