What is perceived are not the forms or species of things as the Aristotelians believed, but impulses of light and air (DRN book V, ch. VIII; vol. II, 254; for the rejection of species see DRN book VII, ch. XXX XXXIII against the Aristotelian and ch.
While it is difficult to fault this impulse in light of the human and environmental costs of the current leak, putting an end to deep sea drilling is likely short sighted.
Five male Göttinger minipigs were studied with fMRI during visual stimulation with series of light impulses conducted into the MR cabin via fibre optical wave guides (EPI sequences, block design, 1.5 T clinical routine MR-scanner).
Analogously, an optical system can be characterized by an impulse response that for an incoherent imaging system is the intensity distribution in the image of a point source of light; the optical impulse is a spatial rather than a temporal impulse otherwise the concept is the same.
Other mooted applications include smart glasses or contact lenses, and even synthetic retinas, if the technology could be rejigged to convert pixels of light into electrical impulses.
To view the other articles in this section visit http://dx.doi.org/10.1111/bph.2014.171.issue-4 The retina is a complex neural circuit that converts photons of light into electrical impulses, which encode and process the images cast on the retina (Dowling, 2012).
Becoming is Eros, the evolutionary impulse, the first cause, that original spark of light and energy that created the entire universe.
The impact of a photon of light generates rhodopsin, thus creating electrical impulses in the optical nerve that converge within the visual cortex and are interpreted as 'vision' [ 4].
Together, the neural retina and the RPE provide the structural and functional basis for light perception by ensuring the capture of photons, the conversion of light stimuli into complex patterns of neuronal impulses and the transmission of the initially processed signals to the higher visual centers of the brain.
For example, when we see, the ion channels convert the information that arrives at our eyes in the form of light energy into electrical energy in the form of nerve impulses.
