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issn:1757-594
1.  Setting the absolute threshold of vision 
The performance of sensory systems in many cases is limited by the physical nature of the stimulus. For vision, the quantal nature of light limits detection by dark-adapted observers; only now are we beginning to be aware of the subtleties in the biophysical mechanisms underlying this exquisite sensitivity.
doi:10.3410/B1-66
PMCID: PMC2873777  PMID: 20495680
2.  Setting the absolute threshold of vision 
The performance of sensory systems in many cases is limited by the physical nature of the stimulus. For vision, the quantal nature of light limits detection by dark-adapted observers; only now are we beginning to be aware of the subtleties in the biophysical mechanisms underlying this exquisite sensitivity.
doi:10.3410/B1-66
PMCID: PMC2873777  PMID: 20495680

Results 1-2 (2)