Showing posts with label Perceptions. Show all posts
Showing posts with label Perceptions. Show all posts

Sunday, December 2, 2007

Are You Up for Intellectual Challenges?

How would you answer the following question that appeared on a recent university application essay? Describe a picture and explore what it wants. First, please realize that your answer determines your entrance to a very prestigious university -- the University of Chicago. Does this differ from what was required when you entered university? Intellectual questions help separate applicants who can thrive in a very demanding academic environment. Here's why...

The question requires an applicant to problem solve, make sound choices, fill in perceived gaps, and include both experience and research to creatively and logically convince UC Admissions personnel that he is on target. Not a small task and much different than memorizing facts from books and organizing these into an essay. Here's why...

Interestingly, our human brain thrives on solving puzzles and challenges. "...people learn to make subtle perceptual judgements with practice because the brain becomes more efficient in extracting the relevant information for the task," according to University of Toronto researchers.

And, you might be surprised that the brain helps us see and interact with objects by filling in missing information. Here's how... Because most of what you and I see is frequently obstructed by other objects, or our eyes focus on certain aspects of a picture or painting, visual information received by the brain is often incomplete.

"If you didn't have the brain filling in all of this missing information, every time you looked at an object from a slightly different view, it would be a different object and that would be very confusing and difficult to cope with," says Patrick Bennett, associate professor of psychology at U of T. "This filling in gives some consistency and continuity to the world." Perhaps you're beginning to see the ingenuity of the question posed at UC....

The more you and I learn to find solutions to problems or to create and design, the more our brains wire new dendrites for the many nuances involved in these tasks. When new and subtle variations appear, we can make informed decisions based on what we know and our lived experience. Do you see how these skills might separate best candidates to hire as college students enter business and other professions?

Top organizations scout for new hires who can innovate, invent and creatively approach top management roles. Fact is, many of today's university students are preparing for jobs that do not currently exist, but will in future. So it stands to reason colleges scout for students who can meet intellectual challenges. How about you... up for new challenges where you work?

Why take on intellectual challenges? Perhaps it’s better to ask… why not?

Wednesday, September 20, 2006

How Does Your Brain Make Sense of What You See?

Do you generally trust your perceptions? If you see it, do you believe it? Please consider the following scenes from Vurdlak’s Mighty Optical Illusions: Which pig is larger? On what did you base your decision?


Do the pigs in the foreground look larger than the one in the background? Dimensions of foreground and background can tickle our brains. Vurdlak explains that the pigs in the foreground are exactly the same as the one in the background.

Optical illusions, as you see illustrated here, can easily fool us because they draw from “lower level” knowledge. Interestingly, optical illusions trick our brain, and lead to inappropriate interpretations because we have not given the images our full attention.

On the other hand, careful examination of visual imagery helps us to discern distance and size estimations, contrasts, structural factors, mental rotation, and influence of knowledge. Giusberti’s research shows that understanding visual imagery takes longer and moves us past initial assumptions, as we make sense of the world, since we put in motion higher cognitive processes.

Our minds deal with complexities of visual problems by looking for simple solutions. The brain looks for relationships and patterns to group similar items as it unravels the puzzle. As this process occurs, we perceive these pieces as a whole. Psychologists call this a Gestalt effect, in which your mind fills in the missing pieces.

You’d enjoy playing with some very amazing illustrations of optical illusions and optical perceptions available at German researcher, Michael Bach’s web. He presents 66 topics available topics.

Outstanding optical illusions can be viewed at Akiyoshi Kitoka’s illusion pages:
Some of my favorites on this site are Sunflowers and Typhoons with Blue Eyes.

What do you think of the illusions found at a web very aptly named, At the Persistence of Ignorance?

Jean Constant also presents very interesting phenomena at her web.

What did you learn about initial interpretations of what you see?