Lesson 7 - Brain Lateralisation

Question 1

Brain Lateralisation

Answer 1

Suggests that the 2 halves of the human brain aren’t fully alike e.g. the left is for language and the right is for visual motor tasks.

Question 2

Paul Broca’s Findings

Answer 2

He found damages to the left lobe led to language deficits but damages to the right didn’t. However, we can talk about images processed on the right because the 2 lobes are connected.

Question 3

Surgeons Supporting Broca

Answer 3

When treating epilepsy surgeon cut the corpus callous to prevent electrical activity that caused the epilepsy to travel. After this however, the communication between the two lobes was also cut.

Question 4

Corpus Callosum

Answer 4

The large bundle of fibres that connect the left and right temporal lobe.

Question 5

Brain Lateralisation Strengths

Answer 5

• Roger Et Al (Chicken Study)
• Allows Us To Study Further

Question 6

Brain Lateralisation Weaknesses

Answer 6

• Age Barriers
• Doesn’t Explain Brain Plasticity

Question 7

Increasing Brain Understanding(+)

Answer 7

Roger Et Al - It helps us understanding functions of the brain. Roger found in domestic chickens, brain lateralisation is associated with an enhanced ability to perform 2 tasks simultaneously, meaning it increases brain efficiency.

Question 8

Allows Us To Study Further (+)

Answer 8

It allows us to study left handedness and why they tend to suffer higher rates of allergies and immune system issues.

Question 9

Age Barrier(-)

Answer 9

Szaflarski found that languages becomes more lateralised to the left hemisphere up to 25, but decreases after that, meaning it’s only relevant up to a certain age.

Question 10

Doesn’t Explain Brain Plasticity (-)

Answer 10

Having a damage hemisphere doesn’t make your brain abnormal as the hemisphere will takeover the job, meaning lateralisation can be overcome by plasticity.