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Object category learning is a fundamental ability, requiring the combination of "bottom-up" stimulus-driven with "top-down" task-specific information. It therefore may be a fruitful domain for study of the general neural mechanisms underlying cortical plasticity. A simple model predicts that category learning involves the formation of a task-independent(More)
Small RNAs (sRNAs) are becoming increasingly recognized as important regulators in bacteria. To investigate the contribution of sRNA mediated regulation to virulence in Vibrio cholerae, we performed high throughput sequencing of cDNA generated from sRNA transcripts isolated from a strain ectopically expressing ToxT, the major transcriptional regulator(More)
The development of effector and memory CD4 cell populations depends upon both T cell receptor (TCR) engagement of peptide/major histocompatibility complex (MHC) class II complexes and ligation of costimulatory molecules with counter receptors on antigen-presenting cells (APCs). We showed previously that sustained interactions with APCs could be crucial for(More)
Web camera image databases and web-based services can be valuable components for a variety of modelling applications, but are still areas of relatively new exploration. Investigating design and information flow for an online image archive and analysis site for plant phenology and meteorological research has broader relevance to considerations of(More)
The current study examined the relationship between verbal memory span and the latency with which a filler-gap dependency is constructed. A previous behavioral study found that low span listeners did not exhibit antecedent reactivation at gap sites in relative clauses, in comparison to high verbal memory span subjects (Roberts et al. in J Psycholinguist Res(More)
We revisit the purported locality constraint on Quantifier Raising (QR) by investigating children’s and adults’ interpretation of antecedentcontained-deletion (ACD) sentences, where the interpretation depends on the landing site targeted by QR out of an embedded clause. When ACD is embedded in a nonfinite clause, 4-year-old children and adults access both(More)
Two studies demonstrate that children have knowledge of scalar distinctions between three sub-classes of gradable adjectives: relative (big, long), absolute with a maximal standard (full), and absolute with a minimal standard (spotted). Performance on these adjectives is compared with controls (shape, color, mood). Children appropriately shift the standard(More)
speaking and singing are two modes of the same system. These modes are subject to similar constraints, but have different goals. This study examined the acoustic vowel spaces, as defined by formant frequencies, used by singers in each mode. Differences between the modes is partialy explained by known articulatory processes used during singing.
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