Sentence Comprehension 2 Flashcards
What are the context effects in the garden path model and constraint based model?
GPM = context is initially ignored, but has effect on later stages of processing. CBM = context has immediate effect (but is not the only factor).
What type of context do we deal with in this course?
Discourse context (particularly referential context) that are provided outside the target sentence.
How can contact affect syntactic processing?
If presupposition is not satisfied.
What is presupposition?
Information about modifiers and number of objects of the same kind in the discourse.
What is the referential theory?
It explains how context may affect syntactic ambiguity resolution. It has later been incorporated into constraint based theories.
It predicts that the interpretation that contain the fewest unsatisfied presuppositions is the preferred one.
Altmann and steedman (1988) made a 2x2 (referential context attachment) experiment. What did they find?
They found a referential context effect which is compatible with referential theory.
Clifton and Ferreira (1989) argue against Altmann and Steedman (1988)’s findings. Why?
They argue that the results can also be explained with the garden path model.
Problems: Their self paced reading task did not distinguish between first analysis and reanalysis. Eye tracking. The GPM argues that the parser has access to the referential information at a later stage
What does constraint based models say about context effects?
It’s just one of the many sources of information, it does not always have a strong effect.
What does referential theory and garden path model say about context effects?
Context do occur. Context effect is not always as strong or or as early as referential theory claims.
Context makes the non-minimal attachment analysis easier, but not always easier than the minimal attachment analysis.
What does garden path model say about frequency effect?
It is initially ignored during syntactic analysis
What does constraint based models say about frequency information?
It is used immediately and relative frequencies of alternative usage s could affect ambiguity resolution.
What types of frequencies are there?
Argument structure, syntactic categories and tense form. Some verb can take more than one structure, some words can have more than one syntactic structure and some words can take the same form for different tenses.
In a self-paced reading experiment. What did Mitchell (1987) find? “After the child had visited/sneezed the doctor prescribed injections”
For “visited “ reading times for doctor was less than for sneezed(incompatible with constraint based models).
For “sneezed” reading time for prescribed was longer than visited (so reanalysis took place for doctor).
What was the results from Mitchell (1987) about frequency information?
Frequency information does not provide a strong enough constraint to prevent processor from considering direct object analysis. It’s consistent with garden path model.
Tests of architectures cannot test which two things?
Serialism in garden path model and parallelism in constraint based models.