Lecture 21

Question 1

when was the first cochlea implant and how did they help

Answer 1

70s single channel electrode - some aid to lip reading

Then later in the 70s multi channel electrode - some speech understanding

Question 2

speech perception improvement until….

Answer 2

the 90s, it hasn’t improved since then

Question 3

are consonants or vowels more effected in hearing loss and why

Answer 3

consonants: they are higher frequency and lower in intensity

bad because consonants carry more information than vowels

Question 4

what does benefit from implants in children depend on

Answer 4

Meaningful auditory learning
Primary care giver (often mother)
communication mode
educational approach
home environment

Question 5

why is early age of implantation important in children

Answer 5

Increased neural plasticity in babies that reduces by 3 years

important for speech understanding, production and language