Different Visual Illustrations In Perception Essay

2473 words - 10 pages

Different Visual Illustrations in Perception How can visual illusions illustrate top down processes in perception?
Contrast this with a visual illusion that can be explained through
bottom up processes.

Text Box:

Figure 1 Muller Lyer illusion

There are many
suggestions to explain how visual illusions can be perceived. These
suggestions include physical illusions, bottom up illusions and top
down illusions. An example of a physical illusion is how a straight
stick when placed in water appears bent. Here the illusion has
occurred before the light has entered the eye and so is a physical
illusion. Bottom up and top down illusions however involve the
processing after the light has entered the eye. Bottom up processes
are processes which take information into the eye and then make
judgements about the nature of the visual world based solely on this
information. Hering who suggested that it was the innate ability of
the visual system that led to how things were perceived illustrates
this. Top down processing however involves using prior knowledge and
experience about the structure of the world to influence how something
is perceived. Helmholtz who felt that the perception of a stimulus
was based on visual experience illustrated this. The following
illusions show examples of how both processes can be used to explain
perceptions.

Text Box:

Figure 2 shows how the Muller Lyer illusion can be perceived as a three dimensional object, e.g. the inside or outside of a building

An example of a visual illusion that can be explained by top down
processing is the Muller Lyer illusion (figure 1). In this illusion
the lines in both A and B are the same length however the arrows
pointing inwards in A make the line appear longer than when the arrows
point outwards as in B. Gregory explained this illusion in 1970 by
suggesting that the lines are perceived as being three dimensional
rather than two-dimensional. This is shown in figure 2 where A is
shown as the inside of the room and B shown as the outside. By
perceiving the objects in this way A becomes further away than B.
However given that the lines are of the same size by applying the
principle of size constancy it can be concluded that A is perceived as
being longer than B. For this to be perceived knowledge about what
the outside and inside of a building looks like must be taken into
account. This therefore shows how prior knowledge is used when the
image is perceived and so shows how the Muller Lyer illusion is
perceived through top down processing.

Similarly the...

Find Another Essay On Different Visual Illustrations in Perception

Mark Twain's Illustrated Books Essay

3401 words - 14 pages travelogues. Some of his books contained illustrations by several different artists, sometimes pulling them from previously published works by other authors. Twain was very particular about the illustrations in his books and, as much as possible, he maintained full editorial control over the look, feel, and quality of the drawings. If he wasn’t happy with them, they went back for revision until he was satisfied. After his first look at the

Children's Literature: Illustrated Storybooks Essay

1793 words - 7 pages story. “The illustrations reinforce the text with a clear visual representation of the actions.” (Glazer & Giorgis, 2005, p.125). The writer’s craft is important in picture books, but without effective illustrations the story would not be as effective in telling the story and conveying ideas to the readers. “The arrangement of words in particular orders and groupings (the use of grammar) and their presentation in different fonts, sizes and

The Work of James Jerome Gibson

1277 words - 6 pages belief I have in terms of human cognition as well as what theories I hold so as to buttress such belief in a scientific manner. Along with that, as reviewed the debates on the different theories about visual perception, I came to recognize that how complicated human beings are by nature, such that there is no one conclusive theory to delineate human mind and behavior. Meanwhile, Gibson’s ecological theory of perception and cognition, the theory of

Personal Reflection Business

827 words - 3 pages environment. By understanding my personal learning style, and my behavioral patterns, I can live with less stress in my environment. By living with less stress I can be more productive within my learning team, and will be able to acquire a successful learning style for life.My learning style is visual. Growing-up I enjoyed reading books with illustrations, and going to the local museums. My favorite school subject was "show and tell." As a visual

Vision of Home

1075 words - 4 pages out of the chimney, which shows that love and happiness is being created in the home. Together, the two illustrations/graphics truly embody the message I was trying to convey. There are a myriad of different visual communication techniques and even more variations within each of those techniques. Many people combine several techniques to convey a message to their intended audience, even if that audience is just themselves. I did just that: I

Visual Form Agnosia

1550 words - 6 pages Visual form agnosia is defined as the inability to recognize objects (Goldstein, 2010). To understand the basic concept of visual form agnosia, it is important to first understand that perception and recognition are separate processes. Perception is defined as the ability to become aware of something through our senses, and recognition is the ability to put an object in a group that gives the item meaning. When a person suffers from visual form

Visual Learning Style as Perceived by DLSL Education Students

1561 words - 7 pages student may be also different kind of learner some can be auditory, some can be kinaesthetic and some may also multiple learner; learners that can learn in two learning style. For the questionnaire part most of the question regarding on how they learn, most of the respondent agreed that they use several techniques for them to learn; like using different types of visual such as maps, graphs, diagram, pictures and etc. Those visual supports that

Vision and Blindsight

1591 words - 6 pages spread out flat, would map out, contralaterally, the visual field. The V1 is known to process visual information regarding orientation, spatial frequency, texture, color and retinal disparity (depth perception) Information then proceeds to the visual association cortex where it is integrated into a visual image (4). So how is visual information processed in the brain on an unconscious level when the primary visual cortex is damaged or destroyed

Why Do we have Two Eyes rather than one?

2409 words - 10 pages retinal images must be perceived as three-dimensional (3D) spatial representations (Barbato & Addington, 2013; Fischmeister & Bauer, 2006). In order to achieve this level of visual perception, the human visual system must receive and interpret information from different sources including monocular and binocular cues to depth. Depth cues or pointers are important source of information, which enable the human visual system to re-construct 3D images from

Comparing Forms of Illustration

638 words - 3 pages wrong because there are many dissimilar characteristics between the two. One of the main differences between advertising and editorial illustration is that advertising illustration uses all kinds of visual images and has a vast array of mediums available for usage. This includes photographs and sometimes including illustrations in the design in order to show something that the photograph cannot. According toThe Art Institute, “They can

philosphie

1356 words - 6 pages the secondary association area in the occipital lobe, in which stimuli are is integrated with each other and compared with memories. Visual agnosia, often appears as the alexia (disability to reed), is the lack of recognition of seen objects, due to the injuries of secondary optical association area. The next stage of the visual perception is the tertiary cortex, in wich different translated through the angular gyrus and the supramarginal gyrus

Similar Essays

Different Illustrations Of Alice’s Adventures In Wonderland

1023 words - 4 pages Alice’s Adventures in Wonderland is a story that has been loved and read by different age groups. Lewis Carroll wrote the book in such a way that the reader, young or old, could be trapped into Alice’s world of adventure. The illustrations by John Tenniel help portray the story beautifully. Tenniel put pictures to Carroll’s thoughts exactly. When a student reads Alice’s Adventures in Wonderland for the first time, it is always great if he or she

Compare And Contrast The Different Perceptual Disorders That Disrupt Visual Perception

905 words - 4 pages Agnosia and the two types of Agnosia; Apperceptive Agnosia and Associative Agnosia. Agnosia in general is a failure of recognition which is not attributed to a sensory deficit. There is a visual specific Agnosia which interferes with visual stimuli recognition, in particular inability to recognise objects from visual information. As prior mentioned there are two forms one being, Apperceptive Agnosia. This is the inability to recognise objects and

The Visual Learner In Me: Analyzing Different Learning Styles

625 words - 3 pages visual learner. A description of my personal assessment states; I have a mild preference of this scale. This means I may thrive more easily in a teaching environment that graces that element (Felder & Soloman, n.d.) . Visual learners remember best what they can see. Such as images, sketches, graphs, outlines, tables, and illustrations (Felder & Soloman, n.d.). I agree with this determination

Mark Twain's Illustrations Essay

4164 words - 17 pages treasure. The books I read today on my e-reader or listen to on “Audible” versions -- even Twain’s books -- almost never have a visual impact like Twain’s books had in the 19th century. Where did these illustrations come from and why were they so important to Twain’s literary work? Over 20 different artists/cartoonists were employed over the course of Mark Twain’s career to illustrate his books and articles. The Adventures of Huckleberry Finn