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Nine Brain Quirks You Didn’t Realize You Had

Nine Brain Quirks You Didn’t Realize You Had
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I think the brain is most interesting when it doesn’t work the way you expect it should. Psychology often confirms our intuitions about how our minds work, but it offers quite a few surprises as well. Although some psychology buff’s will have heard a few of these before, here’s a list of quirks in your brain you probably didn’t realize you had:

1) Your short-term memory has a max capacity of seven.

Humans have three forms of memory: sensory, long-term and short-term. Long-term memory is like hard-drive space, while short-term memory works like a very small RAM. This short-term memory can hold only about five to nine (average is seven) items at a time.

Remembering information longer than this requires you to either compress it down into seven units or store it in long-term memory. Most phone numbers are only seven digits.

2) Chartreuse is the most visible color.

Yellow-green, chartreuse, sits right in the middle of the frequencies of visible light. Your eyes have receptors for blue, green and red. Being in the middle, yellow-green triggers the most of these receptors to fire, making it easy to spot. In some cities, firetrucks have been changed from red to a yellow-green color to make them more visible.

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3) Your subconscious is smarter than you are.

Or at least more powerful. In one study, a square was assigned to a location on a computer screen through a complex pattern. After watching it, people began to get results better than chance of picking out where the square would pop up next. But when asked to consciously determine the pattern, even given a few hours, nobody could do it.

4) You have two nervous systems.

One set controls excitation and the other controls inhibition. If you hold out your hand, you might notice minor tremors. This is caused by slight, random differences in the amount each of the two systems are firing.

5) Your brain is awful at probability.

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Okay, so maybe your high-school math teacher could have told you this one. But, what’s interesting isn’t that your brain is bad at probability, but how. In one study recipients were asked:

Linda is 31 years old, single, outspoken, and very bright. She majored in philosophy. As a student, she was deeply concerned with issues of discrimination and social justice, and also participated in anti-nuclear demonstrations.
Rank the following statements from most probable to least probable:Linda is a teacher in an elementary school.

  1. Linda works in a bookstore and takes Yoga classes.
  2. Linda is active in the feminist movement.
  3. Linda is a psychiatric social worker.
  4. Linda is a member of the League of Women Voters.
  5. Linda is a bank teller.
  6. Linda is an insurance salesperson.
  7. Linda is a bank teller and is active in the feminist movement.

Almost 90% of students responded that #7 was more probable than #5. This is despite the fact that to be a bank teller and in the feminist movement is completely contained within the set of #5 (just being a bank teller). It seems our minds like to think more details make events more probable, not less.

6) Your memory isn’t great either.

Studies have shown that people are highly likely to misremember past events. Even worse, it is incredibly easy to suggest a memory that never happened. This is why so-called “repressed” memories should be given a lot of thought. It is far easier to suggest a memory of an event never happened, then it is to recover one that actually did.

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7) You can perceive depth with one eye.

It’s a myth that depth perception is entirely the result of having two eyes. Binocular vision does assist in making a three-dimensional picture. However, most of your ability to perceive depth comes from inside your brain. It has been wired to look at angles and proportions to judge distance.

If you required two eyes to perceive depth then most optical illusions wouldn’t work and it would be incredibly difficult to gather information from flat photographs. Not to mention a lot more one-eyed pirates walking overboard.

8 ) Long-term memory shuts down during sleep.

The parts of the brain that transfer information to long-term memory shut down while sleeping. This is why dreams quickly fade away after you wake up. Although you may have several dreams in a night, they aren’t being recorded into long-term memory. Generally only the fragments of a dream left in short-term memory have a chance to be encoded after you wake up.

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9) You have an instant playback feature.

At the beginning I mentioned that humans have three forms of memory, short-term, long-term and sensory. Sensory memory is your brain’s equivalent to an instant playback feature. Working for both your vision and hearing, your thalamus can resend signals a few seconds after they were originally sent.

Imagine being at a party and overhearing someone say your name. Often you can recall what they said even though you were focused on another conversation. This is because your sensory memory re-sends the signals when it finds something important, such as your name. If you lacked this form of memory, activities such as multitasking or taking notes from a speaker would be impossible.

If you’re asked to repeat something you just said because the other person wasn’t listening, just wait a few seconds. Often they can replay the message in their head and give a response.

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Scott H Young

Scott is obsessed with personal development. For the last ten years, he's been experimenting to find out how to learn and think better.

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Last Updated on November 5, 2019

How to Cultivate Continuous Learning to Stay Competitive

How to Cultivate Continuous Learning to Stay Competitive

Assuming the public school system didn’t crush your soul, learning is a great activity. It expands your viewpoint. It gives you new knowledge you can use to improve your life. It is important for your personal growth. Even if you discount the worldly benefits, the act of learning can be a source of enjoyment.

“I have never let my schooling interfere with my education.” — Mark Twain

But in a busy world, it can often be hard to fit in time to learn anything that isn’t essential. The only things learned are those that need to be. Everything beyond that is considered frivolous. Even those who do appreciate the practice of lifelong learning, can find it difficult to make the effort.

Here are some tips for installing the habit of continuous learning:

1. Always Have a Book

It doesn’t matter if it takes you a year or a week to read a book. Always strive to have a book that you are reading through, and take it with you so you can read it when you have time.

Just by shaving off a few minutes in-between activities in my day I can read about a book per week. That’s at least fifty each year.

2. Keep a “To-Learn” List

We all have to-do lists. These are the tasks we need to accomplish. Try to also have a “to-learn” list. On it you can write ideas for new areas of study.

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Maybe you would like to take up a new language, learn a skill or read the collective works of Shakespeare. Whatever motivates you, write it down.

3. Get More Intellectual Friends

Start spending more time with people who think. Not just people who are smart, but people who actually invest much of their time in learning new skills. Their habits will rub off on you.

Even better, they will probably share some of their knowledge with you.

4. Guided Thinking

Albert Einstein once said,

“Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.”

Simply studying the wisdom of others isn’t enough, you have to think through ideas yourself. Spend time journaling, meditating or contemplating over ideas you have learned.

5. Put it Into Practice

Skill based learning is useless if it isn’t applied. Reading a book on C++ isn’t the same thing as writing a program. Studying painting isn’t the same as picking up a brush.

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If your knowledge can be applied, put it into practice.

In this information age, we’re all exposed to a lot of information, it’s important to re-learn how to learn so as to put the knowledge into practice.

6. Teach Others

You learn what you teach. If you have an outlet of communicating ideas to others, you are more likely to solidify that learning.

Start a blog, mentor someone or even discuss ideas with a friend.

7. Clean Your Input

Some forms of learning are easy to digest, but often lack substance.

I make a point of regularly cleaning out my feed reader for blogs I subscribe to. Great blogs can be a powerful source of new ideas. But every few months, I realize I’m collecting posts from blogs that I am simply skimming.

Every few months, purify your input to save time and focus on what counts.

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8. Learn in Groups

Lifelong learning doesn’t mean condemning yourself to a stack of dusty textbooks. Join organizations that teach skills.

Workshops and group learning events can make educating yourself a fun, social experience.

9. Unlearn Assumptions

You can’t add water to a full cup. I always try to maintain a distance away from any idea. Too many convictions simply mean too few paths for new ideas.

Actively seek out information that contradicts your worldview.

Our minds can’t be trusted, but this is what we can do about it to be wiser.

10. Find Jobs that Encourage Learning

Pick a career that encourages continual learning. If you are in a job that doesn’t have much intellectual freedom, consider switching to one that does.

Don’t spend forty hours of your week in a job that doesn’t challenge you.

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11. Start a Project

Set out to do something you don’t know how. Forced learning in this way can be fun and challenging.

If you don’t know anything about computers, try building one. If you consider yourself a horrible artist, try a painting.

12. Follow Your Intuition

Lifelong learning is like wandering through the wilderness. You can’t be sure what to expect and there isn’t always an end goal in mind.

Letting your intuition guide you can make self-education more enjoyable. Most of our lives have been broken down to completely logical decisions, that making choices on a whim has been stamped out.

13. The Morning Fifteen

Productive people always wake up early. Use the first fifteen minutes of your morning as a period for education.

If you find yourself too groggy, you might want to wait a short time. Just don’t put it off later in the day where urgent activities will push it out of the way.

14. Reap the Rewards

Learn information you can use. Understanding the basics of programming allows me to handle projects that other people would require outside help. Meeting a situation that makes use of your educational efforts can be a source of pride.

15. Make Learning a Priority

Few external forces are going to persuade you to learn. The desire has to come from within. Once you decide you want to make lifelong learning a habit, it is up to you to make it a priority in your life.

More About Continuous Learning

Featured photo credit: Paul Schafer via unsplash.com

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