Sarah threw rocks of different sizes into a pond. just as ripple size was a function of size of rock, graded potentials vary in magnitude as a function of stimulus intensity.
Graded potentials, which are small variations in the membrane potential, are typically connected to a neuron's dendrites. The size of the stimulus that generates the change in the membrane potential determines how much it will change.
When a thermoreceptor is tested to determine the shower's temperature, somewhat warm water will only cause a little shift, whereas hot water will result in a significant change in the membrane potential. There are two different types of graded potentials: depolarizing and hyperpolarizing.
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