Visual Information Essay -- Anatomy, The Retina

Visual information is seen because light passes through the cornea and is focused by the lens as an inverted image on the retina (Ellis, 2004). The retina is composed of photoreceptor cells; rods and cones with the greatest density of cones situated within the fovea, thus vision is sharpest for images and information projected to the fovea (Ellis, 2004). Subsequently visual information of lateralized foveal stimuli projects to the cerebral hemisphere within the brain. In the brain, the left visual hemifield projects to the right hemisphere and the right visual hemifield projects to the left hemisphere (Lavidor, Ellis, Shillcock & Bland, 2001). Generally for most individuals (in particular right handed), visual recognition of words and information is more efficient for display within the right visual field. However it is debated whether foveal information lateralized within the left or right visual field is double-projected to both hemispheres or unilaterally projected to the contrala teral hemisphere because the fovea is anatomically split and there is differential contribution of the two hemiretinae. Two theories have been put forward regarding how visual information is projected to the hemispheres. According to the split fovea theory, hemispheric division in processes occurs right up to the point of fixation. When the eyes are fixated within a written word visual information about the letters falling to the left of fixation initially projects to the right cerebral hemisphere, whilst visual information about the letters falling to the right of fixation project to the left cerebral hemisphere. Foveal processing is split so precisely at the vertical midline that all letters at either side of fixation project (unilaterally) to th... ...occurring in foveal vision away from the midline however this is not visible or obvious when recognition of visual information occurs. There is an overlap at the centre of the fovea where information projects simultaneously to both hemispheres, this being consistent with the bilateral theory. On the other hand, split fovea theory is an interesting theory of fixation effects that has been inspired by previous research unconnected with split fovea theory and thus incapable of providing appropriate evidence. More recently, split fovea theory has been based on experiments conducted specifically in its support but in which fixation locations were not monitored and stimuli exceeded foveal vision. It is good to see that research in the area is beginning to improve but it is difficult to be enthusiastic about any theory when there is no compelling evidence to support it.

Nazism Theme in the Antz Movie

In the movie Antz, there were a variety of types of governments shown. The main one demonstrated by General Mandible, was fascism or also known as nazism. General Mandible uses his army to make the other ants in the colony behave. There are many different situations shown in this movie to prove that General Mandible uses Fascism or Nazism in this movie. Whereas, on the other hand, Z wants a direct democracy. He wants everyone to say what they have to say and treats everyone evenly. The first reason showing that General Mandible is using a fascism or nazism is that he does not care about every individual ant; he only cares about his colony. He does not care about what any ant has to say and whatever he says, that is what is going to happen.Whereas Z says that everyone should speak out. Also everyone is the same. In the movie, Z says that everyone should think for themselves and that. There are also many other places where General Mandible demonstrates a Nazism or a fascism type of gov ernment is that he imprisoned people when they did not so anything wrong. An example of this was when Z ran away and General Mandible imprisoned Weaver. Since Weaver did not do anything wrong, General Mandible should not have been allowed is imprison him. Z on the other hand wants the colony to be run as a democracy.As the colony was making a ladder, Z says that we are a colony, implying that everyone is just as important to one another. Also in the end when everyone gets up safely, he says that we did it, not I did it. There were many other types of governments shown in this movie as well but these two showed the major two in the movie. Even though Z did not use the direct democracy, it is what he wanted to be used and it is what would have been used if Z had been the leader.

Effects of Free Primary Education on Learners with Special...

A SUMMARY OF WHAT I INTEND TO DO. The research will investigate the effects of free primary education on learners with diverse needs in the main stream primary schools. (A case of Lilongwe Urban Schools) Identification of a sample of teachers, parents, pupils, schools. Distribution of questionnaires, conduct interviews, and observations. The Data will be conducted from four mainstream primary schools in Lilongwe district. 3.0. RESEARCH METHODOLOGY 3.1. A statement of search method . Many learners with special educational needs experience a number of challenges in the mainstream primary schools in which in some way or the other prevent them from receiving quality education. (Ministry of Education PIF Document on special needs, 2000) At†¦show more content†¦This is expensive and need expertise to use specialized materials. In this case, if the government is failing to provide learning materials for ordinary learners, what more to the provision of teaching and learning materials to learners with special educational needs. The shortage of teachers and recruitment of unqualified and untrained teachers who did not have any knowledge on special needs education was also another recipe for disaster because the needs of learners with special educational needs were not given a priority. (Ministry of Education PIF document 2000). Thus, it is reported by 1997, more than half the teachers were untrained, compared with 13% before the introduction of Free Primary Education. The World Bank Report on effects of free primary education (2004) states that this left learners with special educational needs to struggle to meet the needs of the school and not the schools meeting the needs of learners with special educational needs. 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