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Conjunction Analysis-Active Areas Both in Sentence and Sequence Task
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imaging
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In order to restrain too much false positive activations the conjunction analysis to regions that showed significant activation in the sentence comprehension task are restricted by using an inclusive masking strategy. Results of the conjunction analysis suggest that a large number of cortical areas, forming a large network along the dorsal pathway, are commonly activated both in sentence processing and in abstract sequence processing. This network includes activation loci in the left and right parietal and frontal cortices.
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Correct Sequence Judgement vs. Null Event in On-Line Sequence Monitoring
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imaging
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Brain regions showing greater activity for the real-time processing of sequences of visual items include occipital (BA 19 and BA 37)and parietal (BA 40/7, BA 5) areas as well as superior (BA 6 and Supplementary Motor Area-SMA), medial (BA 6 and BA 9/46/44) regions of left prefrontal cortex with activation extending to the dorsal posterior part of the inferior frontal gyrus.(BA 44).Activations show a weaker tendency to be lateralized in favour of the left hemisphere.
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Correct Sequence Judgement vs. Null Event in Sentence Comprehension
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imaging
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Brain regions showing greater activity for the on-line monitoring of visually presented sentences include occipital (BA 19 and BA 37), temporal (BA 22 and BA 21) and parietal (BA 40/7) areas as well as superior (BA 6 and Supplementary Motor Area-SMA), medial (BA 6 and BA 9/46/44) and inferior (BA 45/4744) regions of left prefrontal cortex. Although activations are lateralized for the left hemisphere, related right hemisphere areas demonstrated noteworthy activation levels as well.
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Difference in Sentence versus Sequence Judgment
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imaging
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Difference of activated brain regions in sentence versus sequence processing includes regions forming a large network along the ventral pathway. This network includes activations loci in the left lingual, temporal and inferior prefrontal gyri and homologous right hemisphere activations in the lingual and medial temporal regions.
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