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- Sun Dec 17, 2017 10:08 am
- Forum: Physiology
- Topic: How do photoreceptors distinguish between light intensities?
- Replies: 0
- Views: 1366
Hi, I asked the same question here but I never got a response. According to the Principle of Univariance, the input to a photoreceptor differs along two dimensions (wavelength and intensity) but the output can only vary along one dimension (the cell's graded potential). This means that there is inhe...