Visual Perception Essay

The human brain is capable of perceiving and interpreting information or stimuli received through the sense organs (i.e., eyes, ears, nose, mouth, and skin) (Weiten, 1998). This ability to perceive and interpret stimulus allows the human being to make meaningful sense of the world and environment around them. However, even as the human being is able to perceive and interpret stimuli information through all sense organs, stimuli is most often or primarily interpreted using the visual (eyes) and auditory (ears) sense organs (Anderson, 2009). However, for the purpose of this paper, the visual information process will be examined.

The system consists of the eyes where the information is collected, geniculate lateral nucleus and visual cortex. The visual cortex could be subdivided into the primary visual cortex and the striate cortex. This sensory system is located at the back of a brain parts of which are located in both hemispheres. Recent studies obtained a sufficient amount of information in order to construct the two-stream hypothesis, which describes the ventral and dorsal streams. The ventral stream begins at the primary visual cortex and goes to the inferior temporal cortex. Main functional responsibilities of this area include identification of objects and the emergence of the long-term memory the origins of which are placed in this area (Rauschecker, Josef P and Sophie K. Scott 722). Dorsal stream also begins at the primary visual cortex and ends at the posterior parietal cortex. It is mainly responsible for the body part control required in order to manipulate an object. The research shows that these "what" and "why" systems are not directly related, and the damage in one affect the other only to a certain extent. It could be explained by the fact that that input is transformed differently via action and

Eye Vision Inc, a long-standing medical device manufacturer, has signed a contract to sell Holland Hospital the Clear View Laser and a two-year separately priced maintenance plan for $1 million and $0.2 million respectively. On a when-and-if available bais, Eye Vision Inc. will provide software updats that is embedded with the Laser to maintainance purchasor. The software has never been sold without Laser for its functional necessity. In this memo, as explained below, we conclude that:

When it comes to vision, we see things based on the light reflected from surfaces. The reflected light waves enter the eye through the cornea at the front of the eye, it's resized at the pupil, focused by the lens, and hits the retina at the back. The light is then detected by rods and cones, photoreceptors, which alters the light into electrical signals. The optic nerve transmits those vision signals to the lateral geniculate nucleus, where visual information is transmitted to the visual cortex of the brain then converts into the objects that we see.

There is perfect correspondence between the retinal image and the cellular encoding in V1 (striate cortex), which is completed in terms of contrast and orientation. From there, information from the retinal image is sent forward to distinct regions of the occipital lobe for more complex encoding, called extra striate cortex, including V2 (discrimination, orientation, and color), V4 (shape), and V5 (motion) “(Stevens PH.D., livestong.com)

Why I choose this image to work up and do analysis of. Well as a photographer it touches on a theme that I and other photographers must deal with. The idea that someone can get something for free. Just because we are photographers or even a regular artist that we are all just dying for more exposure and are willing to do whatever you want for some “good exposure”. I don’t think that most folks are all the self-severing, they are just unaware how much time and money goes into producing a good image. And suffer from this misbelief that this is just someone’s hobby and not their lively hood. Form the text of “trust me I am a professional Photographer I don’t work for free” and with the camera, lens, and SD cards in the middle. It

The primate visual system is usually separated in two partially independent pathways; the dorsal pathway subserves mostly motion perception, while the ventral one subserves object feature recognition. The primary visual cortex (V1) receives most of its retinal input through the lateral geniculate nucleus (LGN). Anatomical and functional segregation of visual perception starts at the level of the retina, where parvocellular (P) ganglion cells have small receptive fields and have sustained colour-sensitive synaptic response to light, whereas magnocellular (M) ganglion cells have larger receptive fields and a faster adapting achromatic response to light [Livingston et al., 1992]. Both types of cells project to the layers 3-6 and 1-2 of the LGN, respectively, which in turn send most of their outputs to layers 4Cβ and 4Cα of V1, forming what is known as the P and M pathways [Refs].

Humans have a unique and wonderful device in how one sees. The eye and brain work together to turn the world into visual data one’s brain can understand and use. There are some eye conditions that inhibit the sight or the recognition of the shapes one sees. Research continues to overcome these conditions as well as to further understand the biochemical reaction that gives humans the sight and understanding one has of visual data. Included in the paper are some of the latest research methods.

A series of experiments was performed on glass beads and natural clean dry sands under the objective of the current work of performing parametric studies. Therefore, new techniques and methods were utilized to predict the gradation of the natural cohesionless silica sands tested in addition to the conventional geotechnical laboratory experiments, which were carried out to predict the mechanical characteristics of such soils. Moreover, ideal laboratory simulations for the SPT were performed under several particular relative densities, loading conditions, and stress-strain controlled boundaries. Additionally, the obtained results from such series of experiments were stored in digital forms for further processing and analyses.

Vision is the most important sensory compared to other sensory modality therefore there is a wide range of research carried out on vision. Visual attention is defined as a term that portrays how individuals are able to change their view while attending to an image that is of a normal perspective due to the neurones in the cortex (Carasco, 2011). It is often described as a focal point which is situated with different locations in the region of space (Wright, 1998). Visual search requires detecting a specific target as quickly as possible. For example, trying to find your car in a large car park. By focusing our attention to the specific environment it improves our visual search of the target (Keane et al., 2015). The speed of a visual search

Perception is defined as how you look at others and the world around you. Being able to select, organize and intercept information starts the perceptual process. Perception affects the way people communicate with others. An individual’s pattern of thinking can affect their perception of others. Most people communicate best with people of similar cultures.

There are four different sources of knowledge: perception, introspection, reason and memory. All our knowledge roots from our perception. Perception is the way humans sense the world outside the body. We perceive through our five senses: see, hear, smell, taste, and touch. Humans gain knowledge through experiences and experience through perception. Usually we can trust our senses to perceive our surroundings effectively but there are times we misperceive. Illusions, hallucinations or impediments of the accurate flow of information to our senses are examples of misperceptions. For example if someone hits their head causing their vision to blur or impedes them from effectively processing what occurring around them, then they shouldn’t trust their senses. Another example would be an anxiety attack causing a signal of threat to the brain also preventing the person from correctly processing their surroundings. If nothing can prove we are misperceiving then we have good reason to be believe our senses.