Visual perception

Visual perception is the ability to interpret the surrounding environment by processing information that is contained in visible light. The resulting perception is also known as eyesight, sight, or vision (adjectival form: visual, optical, or ocular). The various physiological components involved in vision are referred to collectively as the visual system, and are the focus of much research in psychology, cognitive science, neuroscience, and molecular biology, collectively referred to as vision science.

Visual system

The visual system in animals allows individuals to assimilate information from their surroundings. The act of seeing starts when the cornea and then the lens of the eye focuses an image of its surroundings onto a light-sensitive membrane in the back of the eye, called the retina. The retina is actually part of the brain that is isolated to serve as a transducer for the conversion of patterns of light into neuronal signals. The lens of the eye focuses light on the photoreceptive cells of the retina, also known as the rods and cones, which detect the photons of light and respond by producing neural impulses. These signals are processed in a hierarchical fashion by different parts of the brain, from the retina upstream to central ganglia in the brain.

Sight (Keller Williams video)

Sight was a DVD released in 2005. The film is a recording of a two-day concert run by Keller Williams in November 2004 at Mr. Small's theater facility in Pittsburgh, Pennsylvania. The video includes 100 minutes of concert footage, including covers of songs by The Grateful Dead (Ship of Fools), Ani DiFranco (Swing) and Harold Arlen/Ted Koehler (Stormy Weather).

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Sight (disambiguation)

Sight of Sights may refer to: