language Flashcards
What are the features of the taxonomic semantic hub?
3 feat, 1 area
features, categories, identification
anterior temporal lobe
What are the features of the thematic semantic hub?
3 feat, 1 area
events, relations, predictions
temporal parietal cortex
language is combinatorial
there are a few dozen speech sounds which can construct thousands of words
iconicity
creates a bridge from experience to linguistic symbols
quasi-regularity
language has rules and exceptions
different patterns capture the statistical regularity of language structure
(EX: spelling; not all spellings have the same pronunciation rules)
words are quasi-compositional
same words have different meanings depending on sentence context
hit the ball // hit the books
optimality in language
attempting to produce precision and simplicity in language – setting down a limited amount of accepted terms
[EX: kinship]
where is auditory processing in the brain
posterior superior temporal lobe
Heschl’s gyrus
methods for studying the brain
virtual lesions - non-invasive brain stimulation
neuroimaging - structural (MRI), voxel-based morphometry
- functional (EEG)
perceptual symbol system
concepts are defined by perception and action features; provides grounding for concepts
cognitive re-enactment / simulation
when imagining ourselves carrying out a concept, the brain regions involved are activated
= the regions involved in processing objects are also involved in representing object concepts
category-semantic deficits
(seen in stroke victims) some categories become specifically hard to perceive
sensory-functional distinction (category-semantic deficits)
in semantic categories, objects seemed to be divided into:
LIVING THINGS - defined by sensory knowledge
INANIMATE OBJECTS - defined by function
sapir-whorf hypothesis
labels influence how we think about concepts
semantic hub
central convergence zone, integrates different areas of the sensory brain
where does neurodegeneration of semantic knowledge happen
anterior temporal lobe