Localisation of function - Broca + Wernicke

Where is the Broca’s area?

Left frontal lobe

2 areas of brain ONLY in left hemisphere

Broca’s area

Wernicke’s area

Broca’s area facts (3)

-Responsible for speech production

-Broca found it coz did a post-mortem exam on a patient who could understand speech but not speak coherently. Found lesion on left frontal lobe Parietal lobe

-Damage to this area is called Broca’s aphasia → causes slow in fluent speech + issues w/ propositions + conjunctions

What is Broca’s area responsible for?

Speech production

How was Broca’s area discovered?

Broca’s had a patient who would understand speech but not speak coherently

Did post-mortem exam and found lesions on left frontal lobe

What is damage to Broca’s area called?

Broca’s aphasia - causes slow influent speech + issues w/ prepositions + conjunctions

What is Broca’s aphasia?

Caused by damage to Broca’s area

Causes slow influent speech + issues w/ prepositions and conjunctions

What are slow influent speech + issues w/ prepositions and conjunctions symptoms of?

Broca’s aphasia

Where is Wernicke’s area?

Left temporal lobe

What is in Left temporal lobe?

Wernicke’s area

Wernicke’s area facts (2)

-Responsible for language comprehension

-Damage called Wernicke’s aphasia - causes:

•difficulties understanding speech

• fluent meaningless speech

•anomia

What is

-Responsible for language comprehension

-Damage called Wernicke’s aphasia - causes:

•difficulties understanding speech

• fluent meaningless speech

•anomia

Wernicke’s area facts (2)

What is anomia?

When ur unable to find the word you need

What is when ur unable to find the word you need?

Anomia

What is Wernicke’s area responsible for?

Language comprehension

What area of the brain is responsible for language comprehension?

Wernicke’s area

3 symptoms of Wernicke’s aphasia

•difficulties understanding speech

•fluent meaningless speech

•anomia

What is

•difficulties understanding speech

•fluent meaningless speech

•anomia

3 symptoms of Wernicke’s aphasia

Evidence contradicting Wernicke’s area (2)

-Some researchers found people have Wernicke’s aphasia w/out any damage to left temporal lobe

-Some left-handed people process language in right hemisphere

→ suggests language comprehension is more complex

What is

-Some researchers found people have Wernicke’s aphasia w/out any damage to left temporal lobe

-Some left-handed people process language in right hemisphere

Evidence that contradicts Wernicke’s (2)

→ suggests language comprehension is more complex

Where do some left handed people process language?

Right hemisphere

Suggests language comprehension more complex than just in Wernicke’s area

Some people have Wernicke’s aphasia without

any damage to left temporal lobe