[TE150-SS23] Brain Quiz

We use only __ of our brains at any given moment.

• 10%

• 50%

• 75%

• 100%

Answer explanation

There is a common myth that we only use 10% of our brain. We actually use all of it. We’re even using more than 10 percent when we sleep. Although it’s true that at any given moment all of the brain’s regions are not concurrently firing, brain researchers using imaging technology have shown that, like the body’s muscles, most are continually active over a 24-hour period.

We learn more effectively when we receive information in our preferred learning style (for example, visual, auditory or kinesthetic)

• True

• False

Answer explanation

At birth, your brain was almost the same size as an adult brain and contained most of the brain cells for your whole life.

• True

• False

Answer explanation

A human brain will triple its size the first year of life. A two-year-old baby will have an 80% fully grown brain. It will continue to grow until you’re about 18 years old. It isn’t until about the age of 25 that the human brain reaches full maturity. The human brain is the largest brain of all vertebrates relative to body size.

Right-brained people learn differently from left-brained people.

• True

• False

Answer explanation

Recent brain scan research provides no evidence for the idea that individuals are left-brain or right-brain dominant in the first place, much less that this supposed difference might affect learning.

It isn’t until about the age of 25 that the human brain reaches full maturity.

• True

• False

Answer explanation

Our brain starts slowing down at the ripe old age of 24 but peaks for different cognitive skills at different ages. In fact at any given age, you’re likely getting better at some things and worse at others.

Listening to Mozart can improve performance on an IQ test 

• True

• False

Answer explanation

While listening to certain kinds of music can improve memory and concentration, but there’s nothing unique about listening to Mozart (Mozart effect).

Most learning in the brain happens in the first 3 years of life.

• True

• False

Answer explanation

False: The first three years are a vital period of brain development, but this is a neuro-myth in that the only aspect of higher cognitive development that is really dependent on those early years is social and emotional security.

About 73% of the brain is made up of water

• True

• False

Answer explanation

This means that dehydration, even as small as 2%, can have a negative effect on brain functions. Dehydration and a loss of sodium and electrolytes can cause acute changes in memory and attention. To prevent any loss of body or brain function, take steps to keep your body properly hydrated.