Gregory Colflesh

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We developed a novel four-dimensional spatial task called Shapebuilder and used it to predict performance on a wide variety of cognitive tasks. In six experiments, we illustrate that Shapebuilder: (1) Loads on a common factor with complex working memory (WM) span tasks and that it predicts performance on quantitative reasoning tasks and Ravens Progressive(More)
The resolution of temporary syntactic ambiguity involves not only the reanalysis of syntactic structure but also the resolution of the conflict between the new correct interpretation and the initial incorrect parse. The current study investigated the contribution of domain-general conflict resolution ability as indexed by performance on an n-back task (with(More)
We investigated the effects of 10h of practice on variations of the N-Back task to investigate the processes underlying possible expansion of the focus of attention within working memory. Using subtractive logic, we showed that random access (i.e., Sternberg-like search) yielded a modest effect (a 50% increase in speed) whereas the processes of forward(More)
While the P600 is generally presumed to be a uniform response elicited consistently across individuals in specific syntactic contexts, Tanner and Van Hell (2014) showed evidence of distinct response profiles (N400 or P600 dominant) for syntactic violations across individuals. The current analysis used Tanner and Van Hell’s response-dominance index (RDI) to(More)
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