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Language and Brain. Introduction to Linguistics. Introduction. If language is a human instinct, where is it?. Brain. Frontal lobe Speech Occipital lobe Vision Cerebellum Movement Parietal lobe Touch Pons Breathing and heartbeat Temporal lobe Hearing Cerebrum memory.
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Language and Brain Introduction to Linguistics
Introduction • If language is a human instinct, where is it?
Brain • Frontal lobe • Speech • Occipital lobe • Vision • Cerebellum • Movement • Parietal lobe • Touch • Pons • Breathing and heartbeat • Temporal lobe • Hearing • Cerebrum • memory
Modularity of the brain • The brain is composed of different areas of physical and cognitive functions. • Each area of function is a module.
How do we know that brain modularity does exist? • Evidence • Aphasia • A language disorder produced by brain damage • Major types • Broca’s aphasia • Wernike’s aphasia
Broca’s aphasia (Expressive aphasia) • Symptoms • Unable to express themselves by more than a single word at a time • Content words are ok; function words are not • Damaged area • The front regions of the left hemisphere
Example: • Yes…ah…Monday…er…dad and Peter…, and Dad…er…hospital…and ah…Wednesday…Wednesda, nine o’clcok…and oh…Thursday…ten o’clock, ah doctors… two…doctors…and…teeth.
Wernike’s aphasia • Symptoms • Fluent speech with no informational value • Comprehension is impaired. • Damaged area • Temporal lobe of the left hemisphere
Wernick’s example: • Well this is…mother is away here working her work out to get her better, but when she’s looking, the tow boys looking in the other part. Onte their small tile into her time here. She’s working another time because she’s getting, too…
Conduction aphasia • No connection between Broca’s area and Wernike’s area • Symptoms • Be able to understand and product speech, but cannot repeat what they have just heard.
Broca’s aphasia Prevents a person from producing speech Person can understand language Words are not properly formed Speech is slow and slurred. Wernicke’s aphasia Loss of the ability to understand language Person can speak clearly but the words that are put together make no sense. Broca vs. Wernicke