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The final copy of this thesis has been examined by the signatories, and we find that both the content and the form meet acceptable presentation standards of scholarly work in the above-mentioned discipline. at Boulder The right prefrontal cortex and left parietal cortex have been implicated in the cognitive control of episodic memory retrieval. In addition,(More)
The syntactic preferences of briefly displayed prime words were found to affect readers' ability to resolve temporary syntactic ambiguities. In two self-paced reading experiments, participants read target sentences containing ambiguous sentence complements (e.g., ''The photographer accepted the fire could not be put out.''), in which ''the fire'' could be(More)
The inhibition of unwanted behaviors is considered an effortful and controlled ability. However, inhibition also requires the detection of contexts indicating that old behaviors may be inappropriate--in other words, inhibition requires the ability to monitor context in the service of goals, which we refer to as context-monitoring. Using behavioral,(More)
The hypothesized role of Broca's area in sentence processing ranges from domain-general executive function to domain-specific computation that is specific to certain syntactic structures. We examined this issue by manipulating syntactic structure and conflict between syntactic and semantic cues in a sentence processing task. Functional neuroimaging revealed(More)
Two experiments are reported examining the relationship between lexical and syntactic processing during language comprehension, combining techniques common to the on-line study of syntactic ambiguity resolution with priming techniques common to the study of lexical processing. By manipulating grammatical properties of lexical primes, we explore how(More)
We discuss the design and implementation of a parallel GUI Service in Tessellation OS and investigate its capability to provide soft service-time guarantees to visual applications. Use of GPU bandwidth reservation permits our GUI service to miss only 0.1% of client deadlines under an overloaded scenario, while a more traditional windowing system misses over(More)
Recent psycholinguistic models hypothesize that anticipatory processing can speed the response to linguistic input during language comprehension by pre-activating representations necessary for word recognition. We investigated the neurocognitive mechanisms of anticipatory processing by recording event-related potentials (ERPs) to syntactically anomalous(More)
Although the field of natural language processing has made considerable strides in the automated processing of standard language, figurative (i.e., non-literal) language still causes great difficulty. Normally, when we understand human language we combine the meaning of individual words into larger units in a compositional manner. However, understanding(More)
IMPORTANCE Cerebral microbleeds (CMBs) are collections of blood breakdown products that are a common incidental finding in magnetic resonance imaging of elderly individuals. Cerebral microbleeds are associated with cognitive deficits, but the mechanism is unclear. Studies show that individuals with CMBs related to symptomatic cerebral amyloid angiopathy(More)
OBJECTIVE To evaluate alterations in cerebral blood flow (CBF) using arterial spin-labeled MRI in autosomal dominant Alzheimer disease (ADAD) mutation carriers (MCs) in relation to cerebral amyloid and compared with age-matched healthy controls. BACKGROUND Recent work has identified alterations in CBF in elderly subjects with mild cognitive impairment and(More)