Speech Perception

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Cutler & Clifton's 1999 Speech Perception and Comphrehension Model
Auditory Input -> Select speech from background -> Transform it to abstract representation -> Word Recognition & Segmentation - > Utterance Interpretation -> Integration into Discourse model
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What is the McGurk effect? Why does it occur?
The Mcgurk effect is the interaction of spoken word and visual information - lip-reading whilst listening to speech. Auditory info is not always reliable, so can use both?. Ba/Da/Ga experiment! Links to Motor Theory.
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What is the Segmentation Problem?
The segmentation problem describes the problem we have with recognising words from patterns of sound. In theory speech is a set of seperate sounds (words), but it appears continuously. Do we process before word recognition or vice versa?
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Give three cue categories suggested by Mattys et al's 2005 hierarchal approach.
The three cues are: Lexical, Segmental and Mertical Prosody.
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Key features of Motor Theory (1967)
Listeners mimic articulatory movements. Neuroimaging shows connection between speech and motor movements. Used when speech signal poor
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Key features of Cohort Theory (1980, 1994)
Every phoneme = lots of possible words. Competition. Recognition - Kick out words that don't fit context etc. until recognition point (only one word is left)
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Key Features of TRACE model (1986, 1991)
Feature, Phoneme and Word Nodes. Exhibitory and inhibition leads to activation level of each node. Activation level determines word recognition.
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Card 2

Front

What is the McGurk effect? Why does it occur?

Back

The Mcgurk effect is the interaction of spoken word and visual information - lip-reading whilst listening to speech. Auditory info is not always reliable, so can use both?. Ba/Da/Ga experiment! Links to Motor Theory.

Card 3

Front

What is the Segmentation Problem?

Back

Preview of the front of card 3

Card 4

Front

Give three cue categories suggested by Mattys et al's 2005 hierarchal approach.

Back

Preview of the front of card 4

Card 5

Front

Key features of Motor Theory (1967)

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