Parts of the Brain

Part Two

Motor Strip Sensory Strip

Prefrontal Area

Frontal Association Area

Cerebrum

Corpus Callosum

Two Hemispheres of the brain

• The human brain is divided into two hemispheres, the left and right, connected by a bundle of nerve fibers called the corpus callosum.

• The left brain controls all the muscles on the right-hand side of the body; and the right brain controls the left side.

• One hemisphere may be slightly dominant, as with left- or right-handedness.

Left brain

• The left hemisphere is dominant in language: processing what you hear and handling most of the duties of speaking.

• It's also in charge of carrying out logic and exact mathematical computations. When you need to retrieve a fact, your left brain pulls it from your memory.

Right Brain

• The right hemisphere plays a role in visual and auditory processing, spatial skills and artistic ability — more instinctive or creative things

• It plays a role in language, particularly in interpreting context and a person's tone.

• The right hemisphere is mainly in charge of spatial abilities, face recognition and processing music.

Left Brain VS Right BrianNOTE:• It’s absolutely true that some brain functions occur in

one or the other side of the brain• However, more modern research has shown that the

brain is not nearly as dichotomous as once thought!• You are not “right brained or left brained,” as you do

not use one side more, than the other

Right Brain VS Left Brain• For example, speech emanates from the left side of

the brain for most right-handed people. • This does not imply, though, that great writers or

speakers use their left side of the brain more than the right. The brain works best when it works together.

Right Brain VS Left Brain• Given the popularity of the idea of "right

brained" and "left brained" thinkers, it might surprise you learn that this idea is just a myth about the brain…

https://www.youtube.com/watch?v=yE6VTvxkhFs

Left Brain VS Right Brain• Recent research has shown that abilities in

subjects such as math are actually strongest when both halves of the brain work together.

• Today, neuroscientists know that the two sides of the brain work together to perform a wide variety of tasks

https://www.youtube.com/watch?v=rnlE9q5IEuI

Left Brain and Right Brian

• Let’s look at an example of how we use the skills of both hemispheres to solve a problem…

Left Brain and Right Brain

• The left hemisphere needs to read the words, while the right hemisphere needs to determine the spatial relationship between the words.

• What about this more difficult example…

Left Brain and Right Brain• Why are some people better and quicker than

others?- Thicker, more efficient corpus callosums - More even dominance between hemispheres, effective

‘balance’ - Familiarity with words, phrases

Question….• After learning about the specialized functions of the

left and right hemispheres, which hemisphere do you think you rely on primarily when you take notes, study, and try to recall information for test?

• How could you possibly make better use of both hemispheres to help improve your grades?