Seeing Is Believing

Topics: Perception, Sense, Illusion Pages: 3 (880 words) Published: January 18, 2013
Seeing is believing by Maksym Tavolzhanskyi

Seeing is believing is an idiom first recorded in this form in 1639 that means "only physical or concrete evidence is convincing". In life we always use the rule until I see with my own eyes I will not believe. People are so accustomed to trust their feelings perception of objects, which often do not even realize whether feelings deceive? But we also can`t definitely state that human sense perception gain the absolutely wrong or right information. It depends on the frame of reference, everything is subjective. Inaccuracy of knowledge gained from experience is possible because of a huge amount of limitations on our sense perception. Every person is not identical and has different abilities. Also there are lots of paradoxes that people with healthy organs sometimes are further from the truth than people with some disabilities. The good example is the people with aphasia, which can always define the truth, using paralinguistic features and cues of intonation (for them the whole meaning of sentence make completely no sense). Naturally human senses has a limitations such as :

1) pair of healthy human eyes have a total field of view of about two hundred degrees horizontally - one hundred and twenty of which are seen both eyes, which results in the binocular vision - and one hundred and thirty-five degrees in the vertical (but these values tend to decrease with age). 2) normal human eye can perceive only light with a wavelength between 390 and 750 nanometers. 3) range of frequencies that the ear can hear, is about 20-20000 Hz. The main reason of inaccuracy of human sense perception are illusions. 1)Our powers of attention are limited, and some degree of concentration is demanded of us before perception takes place. In addition, we are selective about what we pay attention to. 2)Also what we perceive depends upon the conditions that obtain in our environment. For example, a vase, which appears to be blue in a room...
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