Cascade Model of Processing
-lemma’s don’t patiently wait to be called up
-when activation for any step of processing a particular concept, event, or lemma reaches threshold, it starts to send activation to the next step, regardless of whether other items at the same level are ready to go
Buffer
-functional and positional buffer
-an item that is activated before it can be used in putting the sentence together
Positional Level
-syntax, phonological encoding, function words
Slots and Fillers
-positional level has a slot for each word
-a slot for where each lemma is supposed to send the phonological form that it activates
-getting event structures into sets of slots and getting the lemmas to put their word forms into those slots in where syntax takes over from semantics
Subject Slot
-created by the verb lemma
-first noun phrase slot in sentence
Goal Slots
-also created by verb lemma
Formulas and Cliche’s
-prefabricated units save constructions costs in assembling sentences
-gonna, wanna, proverbs, cliches
-roll off tongue
Affix Errors
-suffixes get detached from their stems and left behind
Standing Grammatical Morphemes that aren’t Affixes
-not all errors involve the kinds of morphemes that can be neatly detached
-sometimes the forms of the endings themselves stay, but what doesn’t;t move is the information about which tense or other from of the word should be chose
Phonological Encoding Level
-Part of positional level
-the level at which all the word sounds for all of the morphemes, including affixes, have been activated in the lexicon
-encode those meanings in sounds
Ordered Strings of Phonemes
-The order of sounds in words is a crucial part of the information needed to produce speech
Speech Gesture Level
-coordinating articulatory movement for speech sounds/words
-coarticulation
-lined up phonemes arouse the sets of neural instructions that go to the muscles needed to produce the ariculatory gestures
Self Monitoring
-Awareness to stop errors before they get to speech gesture level
-people w/aphasia struggle w/this and are making multiple source errors