Computational Linguistics Colloquium
21 May 2015, 16:15
Conference Room, Building C7.4
Doing a double take: Hemispheric contributions to language processingKara D. Federmeier
Event-related potential studies have revealed that, when it can, the brain uses context to predict features of likely upcoming items. However, although prediction seems important for comprehension, it also appears susceptible to age-related deterioration and can be associated with processing costs. The brain may address this trade-off by flexibly employing multiple processing strategies, distributed across the two cerebral hemispheres. In particular, left hemisphere language processing seems to be oriented toward prediction and the use of top-down cues, whereas right hemisphere comprehension is more bottom-up, biased toward the veridical maintenance of information. Such asymmetries may arise, in turn, because language comprehension mechanisms are integrated with language production mechanisms that are biased toward the left hemisphere (the PARLO framework).
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