Weber fraction for brightness

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1. If the Weber fraction for brightness, k, is 1/14, how many more candles must you light in a room with 42 burning candles for it to seem just noticeably brighter (i.e., different)? Explain your answer in a sentence.

2. A blind person who has his or her sight restored is likely to have trouble distinguishing faces by looking at them, at least for a while. Would you diagnose prosopagnosia in such a person? Why or why not?.

3. Explain how lateral inhibition accounts for Mach bands.

Reference no: EM13488019

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