direct access model, meaning perceptual info feeds straight into word identification system. uses logogen to say there is one corresponding to each known word
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what are the compartments of the model?
context system, auditory analysis, visual analysis, loggogen system output buffers
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what are some general things of the loggogen model?
- if perceptual input contains a feature of a particular word, then feature count is included
- each loggogen has a threshold at which it fires, word identified and available
- no comparison between logogens
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what are the main two assumptions of the loggogen model?
1 - model only as bottom-up processing, cannot effect activation of another
2 - no direct connection between loggogens, activation of one cannot affect another
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what does the loggogen model account and not account for?
account for - frequency effect, content effects, stimulus degregation, effects
not accounting for - non-word effects and word superiority
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what are second generation models?
models are a lot more interactive, allows units in the same model to affect each other
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what is the second generation model?
Interactive-activation model (McClellend and Rumelhart, 1981)
also later the TRACE model
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what are the basics of the interactive-activation model?
the central process by which words are identified within the IA model is competition between words, many levels of representation
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what are some parts of the IA model?
each unit at feature level is connected to each unit at the letter level, each unit at letter connected to word level.
cascaded activation = inconsistent letters have their activation level reduced by inhibitory connections.
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what is the overall summary of the IA model?
been very influential, can account for ALL lexical phenomenon. can explains word superiority because of top down processing, strong model but extremely complex
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what is an example of 3rd generation model?
words are represented as a pattern of neural activity, across a multi-layered network e.g Elmans scrape recurant model, 2004
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what did van hordens study looking at phonological reading do?
fale positives were much more likely in homophone paires than in spelling controls, shows phonology plays a part in lexical identification
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what happens with eye movements during reading?
eyes move slowly and fixates on each word at a time, usually where youre looking is what youre processing, when your eyes move they cascade and you are effectively blind
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what does isolated word presentation tell us about normal reading?
minimal difference between correct word and homophone in where eye movement goes, however spelling control had a massive difference
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what is developmental dyslexia?
specific learning disorder with importance in reading, inaccurate or slow and effortful word reading, needs to be present for 6 months to be diagnosed
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what is phonological deficit theory?
Snowling, 2000
cognitive deficit specific to the representation and processing of phonological information causes dyslexia
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Other cards in this set
Card 2
Front
what are the basics of the logogen model?
Back
direct access model, meaning perceptual info feeds straight into word identification system. uses logogen to say there is one corresponding to each known word
Card 3
Front
what are the compartments of the model?
Back
Card 4
Front
what are some general things of the loggogen model?
Back
Card 5
Front
what are the main two assumptions of the loggogen model?
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