Tuesday, July 7, 2015

The 4 Levels of the Brain and Your IQ

Studies are now showing that a high IQ may be linked to how we process information.

Here's the question: Is there a single way to predict whether someone has a high IQ or not?

The answer: Maybe.

 According to a new study in the Journal Current Biology, high IQ is correlated with an ability to process important information while ignoring the unimportant distractions.

In the movie "For the love of the game"  Kevin Costner has to drown out all the distractions as he attempts to pitch a no hit game for his farewell performance in the big leagues. His strategy was to blur out all the visual and auditory distractions by creating a focused strategy. He would say to himself "clear the mechanism," and he would have a much clearer focus on the task at hand. Having a strategy to regain your focus can increase your memory, cognitive skills and reduce stress. Each level of the brain often overrides the other based on prior experiences if you let it just remain on auto pilot.

Many scientists have suggested that high IQ is linked to processing speed, or how quickly and accurately a person can understand incoming information. This information can come from a wide range of sensory inputs, including sounds, sights, and physical sensations. Responding to a tap on your shoulder or computing a difficult math problem both rely on processing speed, among other cognitive abilities. The problem in today's lifestyle is we have more potential distractions from texts, cell phones, 24 hour world news and the rapid pace of our world than ever before.

The University of Rochester had researchers conduct a study searching to find what if the ability to ignore certain information is just as important as the speed it takes to process it internally.
Researchers first set out the determine how quickly the studys 53 participants processed different types of visual information. A series of shapes passed across a screen, and participants were asked to identify how the shapes had moved for example top-to-bottom or left-to-right. The shapes could be large or small.

Counter intuitively, participants generally took longer to process large shapes than small shapes. This phenomenon, called spatial suppression, originates from a natural instinct to pay less attention to large background movements like ignoring the lion on the horizon to focus on the lion in front of you.

Each participant received a Suppression Index score (SI) based on the difference between their response time to the small moving shape compared to the large moving shape.

Participants also took a version of the Wechsler Adult Intelligence Scale (WAIS), one of the most extensively studied IQ tests in existence.

Analysis revealed a strong correlation between IQ score and SI score meaning that people with higher IQs were better at processing small movements and worse at processing large movements. Learning how to use all 4 levels of the brain teaches you how to attain selective focus on what is most important.

This studys findings make plenty of sense in real-world scenarios: most of the time, the environment rewards a myopic focus. When you drive, its the cars and pedestrians close by that command the bulk of your attention. Events happening in the background  such as buildings you pass, objects on the side of the road, people moving on the sidewalk all become secondary.

The brain is complex and sometimes perplexing, so its always gratifying to see researchers begin to understand one of its most important mysteries and how our focus can affect our intelligence quotient.

Better Brain tip
Next time youre out in the world, pause for a moment and see if you find yourself relying on a specific sense more than others.

Stop and look around to see first what feels most important to pay attention to...then broaden your senses to also see a bigger picture of your surroundings.


Both of these actions  are important to create a better balance between the 4 levels of the brain and avoiding getting stuck in a sensory pattern.




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