Vision – a deeper look
Our vision is arguably one of our most important senses. Sensitivity to light photons (patterns that fall on our retina) is what makes us perceive things. Retina transfers to optic nerves finally to the neo cortex that allows for a representation, a rich tapestry of the world outside. This happens through transformation from an electro magnetic to chemical (inter transmission through action potential from ganglion cells) to an electrical signal. Finally to the visual cortex, through the ventral(in the temporal lobe) and dorsal pathways, which if impacted with lesions leads to awkwardness to what is being perceived.
Light is a electro magnetic radiation, which is a wavelength and has a range from low to intense light, much of which is not visible. Visible light is a short range in the overall wavelength.
Nature’s camera has lenses (cornea) and photoreceptors within. The eye ball can pivot too, yet create stability, and even adjust aperture, and even cleanse itself with tears.
The eyes move around and sample the surroundings using its 1M pixel (rods and cones to detect low and high light).
Processing of light happens in the deeper areas first, then in the outer layers. Our eyes allow for sharp differentiation in real time.
Cones detect colour, each of which has an individual range with human eyes having three colour pigments,
made more visible in medium to high light as opposed to night vision.
In the study of art, the representation is amplified by exaggeration of one aspect by creating contrast, even ignoring the laws of physics. 3D is created through conjoint of two 2D images, hence creating depth.
Interestingly then, the surprising conclusion is that vision is information processing not representation in the final analysis.
Our vision is arguably one of our most important senses. Sensitivity to light photons (patterns that fall on our retina) is what makes us perceive things. Retina transfers to optic nerves finally to the neo cortex that allows for a representation, a rich tapestry of the world outside. This happens through transformation from an electro magnetic to chemical (inter transmission through action potential from ganglion cells) to an electrical signal. Finally to the visual cortex, through the ventral(in the temporal lobe) and dorsal pathways, which if impacted with lesions leads to awkwardness to what is being perceived.
Light is a electro magnetic radiation, which is a wavelength and has a range from low to intense light, much of which is not visible. Visible light is a short range in the overall wavelength.
Nature’s camera has lenses (cornea) and photoreceptors within. The eye ball can pivot too, yet create stability, and even adjust aperture, and even cleanse itself with tears.
The eyes move around and sample the surroundings using its 1M pixel (rods and cones to detect low and high light).
Processing of light happens in the deeper areas first, then in the outer layers. Our eyes allow for sharp differentiation in real time.
Cones detect colour, each of which has an individual range with human eyes having three colour pigments,
made more visible in medium to high light as opposed to night vision.
In the study of art, the representation is amplified by exaggeration of one aspect by creating contrast, even ignoring the laws of physics. 3D is created through conjoint of two 2D images, hence creating depth.
Interestingly then, the surprising conclusion is that vision is information processing not representation in the final analysis.
