1. What are the authors’ conclusions?
The performance of Broca’s patients is stable, despite intersubject variation. this means that certain comprehension test may not always be used ofr the diagnosis of individual patients, but they do characterize the group. It also means that group studies are not just a valid option in neuropsychology; they are a must because single-case studies may be misleading.
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2. What is the connection between active, passive, subject-relative and object-relative clauses?
Passive and object-relative sentences deviate from canonicity, whereas active and subject-relative follow a canonical word order in which the agent is encountered before the patient.
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4. In footnote 4 it is stated we note that in Berndt et al.’s (1996) review, of the 42 subjects considered, only 21 were reported to be Broca’s aphasic (as classified by the BDAE or some other standardized test battery). This we take to be the main source of the wide heterogeneity in patterns that emerged in their findings.
Why do the authors conclude that including subjects not classified as Broca’s could be the main cause of heterogeneity?
Because those individuals that are not classified as Broca’s may present different symptoms and therefore may add more variation to the results.
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