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| summing point or comparator |
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Definition
| where the output in a circuit is combined with the input in a feedback cercuit |
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| system acting as a controller |
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| intention is to vary the input signal and modulate the output (ex moving a video camera) |
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| compares actual input with desired input and adjusts output to fix the input |
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| reference input signal that the actual input is compared to |
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| adjust body temperature by moving to warmer or colder environment |
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| have intrinsic thermoregulatory systems |
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| preoptic reigon of hypothalamus |
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| where neurons that are particularly sensitive to temperature monitor the temp of the hypothalamus - the controlled variable in temperature regulation |
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| theory that chemical signs derived from the size of the body's fat mass regulate eating patterns |
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| codes for leptin, the protein missing in obese mice |
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| brain uses feeding to monitor blood sugar levels |
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