Language and Attention Flashcards
What are the 2 types of joint attention?
Responding to Joint Attention & Initiating Joint Attention
What is RJA? What role does it play in language?
Sharing a common point of interest
Helps learning and language acquisition via triangulation
What is IJA?
Sharing interest and pleasure
Requires a deeper understanding of attention & intentions
Describe joint attention in apes and autistic children
Apes have a mechanism of RJA, but very limited use of IJA.
Autistic children have normal-function RJA mechanism, but an impaired IJA mechanism.
What does the social-cognitive model state?
Social cognition is necessary for the development of joint attention
Differentiate between white and grey matter
Grey matter is where cognition happens.
White matter is where connections are made
Where do RJA and IJA happen (brain)?
RJA happens in the posterior attentional system
IJA happens in the anterior attentional system, frontal lobe
What are EEGs? Name an advantage and disadvantage.
EEG - method to record brain responses
Advantage: good temporal resolution
Disadvantage: poor spatial resolution
In what dimensions do ERPs vary?
- Polarity
- Latency
- Scalp distribution
Describe MisMatch Negativity (MNN)
Automatic redirection of attention towards a deviant stimulus
Peaks at around 100ms, centro-frontal, pre-attentive response
Describe N400.
Linked to language.
Visible when there are semantic violations
Controlled (in speech)
Describe ELAN & P600.
ELAN is the first response to identifying a morphosyntactic violation
P600 is the reanalysis of this violation
- Controlled
- Not language-specific
- Observed in case of syntactic or structural difficulty/ ambiguity (violation of expectation)
What is an advantage of fMRIs?
Good spatial resolution
What is Parkinson’s Disease?
A neurodegenerative disorder that affects the attention and memory networks. Results in difficulty maintaining focus on words and retrieving them from memory, and inability to identify phonetic and semantic errors on a sentence
What is Specific Language Impairment (SLI)?
A developmental language disorder that affects phonological, semantic and syntactic processing