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Animals with a saccade and fixate eye movements strategy. Why should this be so - Essay Example

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In animals the visually elicited spikes have been supported by the modulation in Neuronal excitation. Naturally movements of the eye introduce artifact recordings that are done by the electroencephalographic commonly known as the (EEG). …
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Animals with a saccade and fixate eye movements strategy. Why should this be so
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Download file to see previous pages In animals the visually elicited spikes have been supported by the modulation in Neuronal excitation. Naturally movements of the eye introduce artifact recordings that are done by the electroencephalographic commonly known as the (EEG). The saccade is the word use to refer to the fast eye movement. The eye being on organ in animals can be referred to as a device the same as in a machine that is very useful with the issue of providing sight to the animal as per that matter.When these simulations are done in a quick movement then this is termed as Saccade where both the eyes do move in the same direction. The focus that comes with the eyes moving straight to the area of interest or concern has been researched as being the fixation. For instance animals are able to detect danger and keep a sharp eye focus on the enemy or at times it might not necessary be danger but the animal has spotted its prey. This will cause more concentration as there is need for food (Johansson, 2001).. The eye at this point has been used for locating the food and then the hunting will take place. This strong focus is what is being referred to as fixation. There are always some small eye vibration that so important in visibility moreover to stand still objects. There is circular kind of movements that will be of great importance in giving a clear and stable image. When we refer to the issue of visual fixation we do refer to the starring of a given point. There is need for the co-ordination of the eye the head and other body parts that will bring Saccade and visual fixation to inter-marry. These bring about speed of responding to events and situations. Let’s take an example of a cheater hunting a gazelle in the field. The Saccade will occur when the cheater will focus and move as close as possible to the prey and the fixation of the eyes will be that it won’t change its focus on the prey (Regan, 2000). On the other hand when the gazelle notices the enemy it will moves with speed to save its life as the cheater remains focused to the prey to keep it alive or else it will die of hunger. Now the mechanics on the three fixations does occur when the eye movement is given the category of ocular drift. There are micro saccades and then the ocular micro tremors (Brain, 2006). Their function is to perceptual. Oscillation that occurs from this kind of fixation has not been well detected. The cat family, the primates the avian such as the eagle and owl has been reported to have the best fixation practices. They have a very sharp connection between the eye and the brain that helps the to be well adaptable their environment. They connect the neurons in various different visual parts and connect to their brain perfectly (Brain, 2006). This shows that the text processing is ‘on-line’ on a fixation by the fixation basis. In a similar way, difficult words often result in longer fixations. This indicates that cognitive process operates within single fixations. Like music playing, copy typing has a motor output. According to (Butsch, 1932),a typist of any skill levels always attempt to maintain the eyes about one second ahead of the letter he is currently typing. This is much the same as it is in music reading (Butsch, 1932). In both musical sight-reading and text reading, the gaze must move progressively to the right side. However, it is more complicated in that there are two staves -for key board players- from which the notes are must be acquired. As recorded by Weaver (1943), eye movements of trained pianists gets their gaze alternated severally between the lower and upper staves. This alternation clearly shows that notes that are to be ...Download file to see next pagesRead More
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