The brain & language acqusition Flashcards
Broca’s area
“anterior speech cortex”, involved in the generation of spoken language
Wernicke’s area
“posterior speech cortex”, involved in the understanding of speech.
the motor cortex
an area that generally controls movement of the muscles. In the prt of motor context nest to broca’s area is the cortex that controls the muscles needed to produce speech (face, jaw, tongue)
the arcuate fasciculus
a bundle of nerve fibers that connect Broca’s area and Wernicke’s area.
neurolinguistics
the study of the relationship between language and the brain.
Broca’s aphasia
- reduced amount of speech, articulaton and slow speech
- consists most of lexical morphemes
Wernicke’s aphasia
- difficulty in auditory comprehension (understanding)
- can produce fluent speech, but not make sense
- anomia occurs-uses strategies to explain
anomia
difficulty in finding the right word
conduction apahasia
- damage in arcuate fasciculus
- fluent, good articulation, BUT problems in repeating something. Heard can not be transferred to speech production area.
dichotic listening test
a technique that has demonstrated a left hemisphere dominance and word processing. left ear->right hemisphere, right ear ->left hemisphere
right ear advantage
an advantage in for the sounds heard by the right ear, because it is processed faster because reaches the left brain hemisphere first.
the critical period
the sensitive period for language acquisition.
when the brain is ready for input as a child. (birth-ca puberty)
cooing
- child doing vowel-like sounds. i, u, k, g.
babbling
2 ca 6-8 months
child producing dfferent vowels and consonants.
bababa, gagaga. badagaba.
the one-word stage
- ca 12-18 months
produce single units like cat, milk.
