文藻外語大學W-Portfolio

2010-04-14 00:44:29

Language and the Brain

Psycholinguistics is the study of language and the mind, the study of the acquisition, storage, comprehension and production of language.

Neurolinguistics is the study of language and physical brain, the study of the neural and electrochemical bases of language development and use.

The human brain is an extremely complex organ, and our knowledge of its inner working is still very limited.

Brain have left hemispheres and right hemispheres.

Corpus callosum: communicate with left and right hemispherel.

Lobes: each hemispheres is further divided into four areas of the brain.

Four Lobes:

1.temporal lobe:perception and recognition of auditory stimuli.

2.frontal lobe:higher thinking and language production.

3.occipital lobe:vision

4.parietal lobe:least involved in language perception and production

Stiuli:

visual, tactile, oral, auditory, and olfactory

Cortex: by one-quarter-inch thick membrance.
(It membrance taht makes human beings capable of higher cognitive functions.)

Gyri: the bumps on the surface of the brain.

Fissures: the depression

Sylvian Fissure: in the middle, separating the temporal lobe and frontal lobe.

Three Cortex:

1.auditory cortex: receving adn identifying auditory signals and converting them a form that can be interpreted.

2.visual cortex: receives and interprets visual stimuli and it thought to be the storage site for pictorial images.

3.motor cortex: sending signals to your muscles(including those of your face, jaw, and tongue)

Auditory cortex is located in the temporal lobe next to the Sylvian Fissure.

Visual cortex is located in the occipital lobe in the lower of each hemisphere.

Motor cortex is found in the frontal lobe in the upper middle of each hemisphere, perpendicular to the Sylvian Fissure.


Three language centers:

1.Broca's area: organizing the articulatory patterns of language and directing the motor cortex when we want to talk.
◎seems to control the use of inflectional morphemes, like plural and past tense markers; function words, like Det, Prep.

2.Wernicke's area: language perception and comprehension
◎arcuate fasciculus: wernicke's areas and Broca's areas are connected by a bundle of nerve fibers.
◎involved in the comprehension of words and sentences and selection of words from the mental lexicon.

3.Angular gyrus: converts visual stimuli into auditory stimuli

Broca's area is located at the base of the motor cortex.

Wernicke's area is located near the back section of the auditory cortex.

Angular gyrus is located between Wernicke's area and the visual cortex.

評論(0)

發表評論