منابع مشابه
Two realms of dark adaptation
The recovery of rod responsiveness after saturating flashes is greatly retarded above a certain critical level of rhodopsin bleaching (approximately 0.1%). A mathematical description of the process of turn-off of the phototransduction cascade allows attributing different phases of the recovery to specific products of rhodopsin photolysis. The fast phase is determined by quenching of metarhodops...
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Leibniz speaks, in a variety of contexts, of there being two realms – a “kingdom of power or efficient causes” and “a kingdom of wisdom or final causes.” This essay explores an often overlooked application of Leibniz’s famous “two realms doctrine” to the natural world. The first part turns to Leibniz’s work in optics for the roots of his view that nature can be seen as being governed by two com...
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We address problems in machine ethics dealt with using computational techniques. Our research has focused on Computational Logic, particularly Logic Programming, and its appropriateness to model morality, namely moral permissibility, its justification, and the dual-process of moral judgments regarding the realm of the individual. In the collective realm, we, using Evolutionary Game Theory in po...
متن کاملComments on the testing of two prominent dark-adaptation hypotheses.
There appear to be some logical errors in recent attempts to test the hypotheses. (I) that the process of dark adaptation is controlled by the concentration of a substance in the receptors (the photochemical hypothesis) and (2) that the state of the visual system during dark adaptation is equivalent to that produced by some stabilized steady background (the equivalent-background hypothesis). Th...
متن کاملLight and dark adaptation.
The high-frequency cutoff of the semicircular canals is unknown but probably also lies above 5 Hz. The high-frequency cutoff of the extraocular muscles is 1 Hz. so that central mechanisms (that introduce phase lead) must compensate from 1 to 5 Hz. The pursuit system begins to cut off between 0.5 to 1 Hz. so that it can compensate for slow head movements while the vestibular system compensates f...
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ژورنال
عنوان ژورنال: Vision Research
سال: 2005
ISSN: 0042-6989
DOI: 10.1016/j.visres.2004.08.005