Now showing items 1-2 of 2

    • Behavioural and physiological limits to vision in mammals. 

      Field, Greg; Sampath, Alapakkam P (Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2017-04)
      Human vision is exquisitely sensitive-a dark-adapted observer is capable of reliably detecting the absorption of a few quanta of light. Such sensitivity requires that the sensory receptors of the retina, rod photoreceptors, ...
    • Optimal processing of photoreceptor signals is required to maximize behavioural sensitivity. 

      Field, Greg; Okawa, Haruhisa; Miyagishima, K Joshua; Arman, A Cyrus; Hurley, James B; Sampath, Alapakkam P (The Journal of physiology, 2010-06)
      The sensitivity of receptor cells places a fundamental limit upon the sensitivity of sensory systems. For example, the signal-to-noise ratio of sensory receptors has been suggested to limit absolute thresholds in the visual ...