Prerequisite for Vision Prerequisite for Vision The main prerequisite for vision is light and light sensitive surface. This is because our eyes belong to a group known as camera-type eye. They do not utilize film like automatic cameras but instead they focus light on retina, which is a light sensitive membrane. The cornea in the human eye is transparent and located in front of the eye. It assists in focusing the incoming light. Behind the cornea, there is an Iris. The Iris contains an adjustable circular hole known as the pupil that contract or expands depending on the amount of incoming light. These three organs work consistently thus enabling vision (Foley & Matlin, 2009).
Human eyes are every subjective in the sense that they function in harmony with the brain to establish the images or picturs you see. The eyes adjust the focus and conveting light into an electrical impalse that the brain can process. On the other hand, an automatic camera is very absolute in the sense that it measures or focus the light that hits the sensor but the sensor is not sensitive, and requires signals listed to be adjusted in order to tally with the color temperature of photons depicting the scene (Foley & Matlin, 2009). Additionally, in human eye, the lens transforms shape to focus while in automatic camera, the lens draws closer and further from object t focus. Moreovr, an automatic camera is uniformly sensitive to photons while human eye is less sensitive. Therefore, concerning image quality, human eyes have a significan sensitive in dark places than a camera.
Reference
Foley, H., & Matlin, M. (2009). Sensation and perception. New York, NY: Pearson.
Related Essay Samples
Personality psychology and antwone essay sample
Davenport becomes Antwone's substitute father figure, the person who teaches him to drop his guarded resentment, and assures him that he has the strength to face the buried traumas of his childhood. The character Antwone Fisher through the lens of ...
Early adulthood
In this stage, an individual's thinking becomes more personal, integrative, and practical in responses to their life experiences and commitment to the responsibilities of career and family. In early adulthood, individuals develop into who they are and lay down the ...
Social psychology assignment
When others present, there is positive relation to the speed of the task in the present of there. Mind guards: this is a phenomenon where you will have members of the group to protect other group members from information.
Reaction paper one
The Cannon-Bard Theory of emotions Human's emotions represent the psychological process of the ive reflection of the most common humans attitude toward the objects and phenomena of reality, toward other people, and toward him/herself. Further the psychologist Philipp Bard proved ...
Self regulated learning
Meichenbaums Model of Self-Regulated Learning Summary of Meichenbaums Model of Self-Regulated Learning Learning takes place under the control of the leaner. According to Schunck and Cox, self-instruction is very successful in the learning of mathematic.
Civil war leaders essay examples
The Civil War in America was one of the defining times of the nation. Lee, on the other hand, was the general of the Confederate Army.
Brain
To start with, damage to the alerting areas of the brain, the brain stem and the midbrain, most likely can result to loss of consciousness. By inhibiting the reticular activating system in the brain stem, the preoptic nucleus makes the ...
Psychology review
The purpose of the text is to aid individuals in finding out the meaning of their lives, and this is by providing them with techniques and perspectives on how to achieve such goals. It is through certain situations that individuals ...
A psychoanalytical reading of henrik ibsens a dolls house
1 A Psychoanalytical Reading of Henrik Ibsen's A Doll's House Henrik Ibsen's controversial play, A Doll's House is based on the life of Nora, a woman who realizes that her husband and her marriage were stifling the person that ...
Childhood bedwetting
The key point that comes across in this article is that communication is a colossal chance for members of the family to stay attached to each other. Hence, the argument brought forward in this article is that communication lays a ...
Ethical issues in psychology
An important step in becoming a mental health professional or consumer of psychological services is to be aware of the ethical issues faced by psychologists. Any practitioner should be willing to discuss their competencies with any consumer of services and ...
Carl rogers: humanistic psychology
From this understanding, the therapist helps turn the attention of the client on to the experience of the moment. All existentialists focus on the importance of the self existing and being aware of this existence, or in relation to Rogers's ...
Things that i need to remember in life
I have to fight for what i want, or I will not get it. I will take a deep breathe; it is good for the soul.
Organism physiology assignment
Organs and Structures Reptiles are very well known for their scaly skins, their tails, and also their large mouths. Most reptiles have scales to help prevent dehydration and also to protect them from other species trying to scratch or harm ...
Free reinstatement essay admission essay sample
I do not consider me a complete mature person, but considering the fact that I realize the gravity of my mistakes and that I can evaluate them as negative for my academic and professional future, I know I learned something ...
Antecedents of job attitudes
Antecedents of Job Attitudes Affiliation: Explain how leader-membership exchange, has been shown to affect job attitudes such as job satisfaction and organizational commitment When a leader is not satisfied jobwise, she is bound to pass on the same dissatisfaction to ...
To apply the principles of personality theory to the behavior of a television character
In addition to the hierarchy of needs humanist personality theory considers human actions and purpose in a different way than other personality theories. The first consideration relates to Spartacus position as a slave as related to Maslow's hierarchy of needs.
The challenge of cultural relativism
Challenge of Cultural Relativism The Challenge of Cultural Relativismpresents both arguments of cultural relativism. For instance, British drivers drive on the left side of the road while it is the custom of American drivers to drive on the right side ...
Family roles and dynamics
The field of addiction has increased which has become apparent that family structures and dynamics play a significant role in continuation of substance in a family. In this manner, enmeshed family is the stereotypical substance family in that it has ...
Perceptions of students in health-related undergraduate programs of essay example
Sociology Abstract The research evaluated the perceptions of students in health related undergraduate programs towards the activities of their peers like smoking and alcohol use that risk health. Essentially, Papinczak et al.focus on nature and its influence on the behaviour ...
Two sides of a coin
Two faces of a single race, in a world wherein they are oppressed, they remained to be puppets and properties of the society despite of the attitude, the bravery and the goodness that they have. The first person who they ...
Today i didn’t turn in my reading log. i had did all the days and had made it super
I have decided that i need to be more organized and pay more attention to what I am doing. I do not try to be a loudmouth and disrubpt the class, I just have been making very bad choices and ...
Example of admission essay on pre-college admission program essay
For this, I find that joining an appropriate Apprenticeship program would be my best bet to meet my career goals in the future and to pursue my interests at the same time. The fields of science and research being offered ...
What factors predict adherence
Factors that predict adherence Affiliate Factors that predict adherence Adherence is one of the most strategies in health and medical fields that reduce the cost of medication and improve the quality of health care. Environmental factors determine and predict adherence ...
Consumer behaviour – product line extension (billabong)
This target audience is aided by the purchase knowledge they hold regarding Blanding's price positioning; that is, the company is in the high price range compared to the overall market but is moderate to high in price when evaluating surf ...