11. Language

Question 1

macaque monkey

> where do the core, belt and parabelt region sit?

Answer 1

tucked insinde the sylvian fissure

Question 2

how does in a recognized sound differ from a not recognized sound in the brain

Answer 2

it activates different brain regions in the temporal lobe

Question 3

which 3 cues does the auditory system use to identify the streams of sound

Answer 3

1. source
2. stream grouping
3. stream segregation

Question 4

what is the lack invariance of speech problem

Answer 4

> consonants differ dependent from the following wovel

> we percieve the consonants as sounding the same, but analysis of soundwaves shows differences

> encoding distinctive features cannot be the only way speech is decoded

Question 5

recognizing spoken words: cohort model?

Answer 5

cohort model:

> matching acoustic form to a stored cohort of words

(phonological lexicon)

> match until uniqueness point is reached

Question 6

semantic memory lies at what interface?

> why is semantic memory believed to be amodal?

Answer 6

semantic memory lies at the interface of language, memory and perception

> assumed to be amodal because it is independent of input or output modality

Question 7

what is broca’s area unlikely to do?

what is more likely the case?

Answer 7

Broca

> unlikely to store actual motor programs for speech (this was the original idea), but may be involved in higher level planning of speech

> unlikely to be a central syntactiv device

> likely to be involved in linking action perception to action production (speech but also other actions)

> likely to be involved in verbal working memory, including establishing semantic and thematic coherence