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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.

More by this author

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 18, 2020

15 Tips to Restart the Exercise Habit (and How to Keep It)

15 Tips to Restart the Exercise Habit (and How to Keep It)

It’s okay, you can finally admit it. It’s been two months since you’ve seen the inside of the gym. Getting sick, family crisis, overtime at work and school papers that needed to get finished all kept you for exercising. Now, the question is: how do you start again?
Once you have an exercise habit, it becomes automatic. You just go to the gym, there is no force involved. But after a month, two months or possibly a year off, it can be hard to get started again. Here are some tips to climb back on that treadmill after you’ve fallen off.

  1. Don’t Break the Habit – The easiest way to keep things going is simply not to stop. Avoid long breaks in exercising or rebuilding the habit will take some effort. This may be advice a little too late for some people. But if you have an exercise habit going, don’t drop it at the first sign of trouble.
  2. Reward Showing Up – Woody Allen once said that, “Half of life is showing up.” I’d argue that 90% of making a habit is just making the effort to get there. You can worry about your weight, amount of laps you run or the amount you can bench press later.
  3. Commit for Thirty Days – Make a commitment to go every day (even just for 20 minutes) for one month. This will solidify the exercise habit. By making a commitment you also take pressure off yourself in the first weeks back of deciding whether to go.
  4. Make it Fun – If you don’t enjoy yourself at the gym, it is going to be hard to keep it a habit. There are thousands of ways you can move your body and exercise, so don’t give up if you’ve decided lifting weights or doing crunches isn’t for you. Many large fitness centers will offer a range of programs that can suit your tastes.
  5. Schedule During Quiet Hours – Don’t put exercise time in a place where it will easily be pushed aside by something more important. Right after work or first thing in the morning are often good places to put it. Lunch-hour workouts might be too easy to skip if work demands start mounting.
  6. Get a Buddy – Grab a friend to join you. Having a social aspect to exercising can boost your commitment to the exercise habit.
  7. X Your Calendar – One person I know has the habit of drawing a red “X” through any day on the calendar he goes to the gym. The benefit of this is it quickly shows how long it has been since you’ve gone to the gym. Keeping a steady amount of X’s on your calendar is an easy way to motivate yourself.
  8. Enjoyment Before Effort – After you finish any work out, ask yourself what parts you enjoyed and what parts you did not. As a rule, the enjoyable aspects of your workout will get done and the rest will be avoided. By focusing on how you can make workouts more enjoyable, you can make sure you want to keep going to the gym.
  9. Create a Ritual – Your workout routine should become so ingrained that it becomes a ritual. This means that the time of day, place or cue automatically starts you towards grabbing your bag and heading out. If your workout times are completely random, it will be harder to benefit from the momentum of a ritual.
  10. Stress Relief – What do you do when your stressed? Chances are it isn’t running. But exercise can be a great way to relieve stress, releasing endorphin which will improve your mood. The next time you feel stressed or tired, try doing an exercise you enjoy. When stress relief is linked to exercise, it is easy to regain the habit even after a leave of absence.
  11. Measure Fitness – Weight isn’t always the best number to track. Increase in muscle can offset decreases in fat so the scale doesn’t change even if your body is. But fitness improvements are a great way to stay motivated. Recording simple numbers such as the number of push-ups, sit-ups or speed you can run can help you see that the exercise is making you stronger and faster.
  12. Habits First, Equipment Later – Fancy equipment doesn’t create a habit for exercise. Despite this, some people still believe that buying a thousand dollar machine will make up for their inactivity. It won’t. Start building the exercise habit first, only afterwards should you worry about having a personal gym.
  13. Isolate Your Weakness – If falling off the exercise wagon is a common occurrence for you, find out why. Do you not enjoy exercising? Is it a lack of time? Is it feeling self-conscious at the gym? Is it a lack of fitness know-how? As soon as you can isolate your weakness, you can make steps to improve the situation.
  14. Start Small – Trying to run fifteen miles your first workout isn’t a good way to build a habit. Work below your capacity for the first few weeks to build the habit. Otherwise you might scare yourself off after a brutal workout.
  15. Go for Yourself, Not to Impress – Going to the gym with the only goal of looking great is like starting a business with only the goal to make money. The effort can’t justify the results. But if you go to the gym to push yourself, gain energy and have a good time, then you can keep going even when results are slow.

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