Basic Neuroanatomy Flashcards
What questions does psycholinguistics attempt to ask?
How/ where do we store linguistic information in the brain?
How do we process speech sounds to identify words and access their meaning?
How do we convert thought/ meaning into speech?
How do we understand a spoken word?
How do we read/ write?
What happens when the language system breaks down:
During development?
After brain damage?
What is psycholinguistics?
Investigates the cognitive mechanisms underlying language processing
What is cognitive neuropsychology?
Study of cognitive impairments that occur following brain injury or neurological illness
Emphasises how models of normal processing can be informed by studying brain damaged behaviour because abnormality is not random
What is the design of psycholinguistic models?
Neurons = information processing units of the brain
- cell body where information processing occurs
- axons transmit activity between neurons
- synapses are the connection points between neurons where information transfer occurs
Neurons form complex information processing networks made up of interconnected neurons
Connectionist models attempt to represent how different cognitive processes occur by using architectural framework of neural networks
How do psycholinguistic models work?
Connections between nodes allow information to flow between units
Node can receive and send information (input and output)
Signal node receives information as input and sends as output = activation
Node can receive multiple input activations if connected to multiple nodes
Connections between levels have different strengths = connection weights
What are the most important disorders for SLT?
TBIs
Neurone generative disorders
CVAs
Where is language predominately localised?
Left hemisphere
What is the central sulcus also called?
Rolandic fissure
What is grey matter?
Area with many cell bodies
What is white matter?
Area with many axons
