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Direct linkYu, Xiaodan; Chen, Chuansheng; Pu, Song; Wu, Chenxing; Li, Yongnian; Jiang, Tao; Zhou, Xinlin – Neuropsychologia, 2011
Previous research has consistently shown that the left parietal cortex is critical for numerical processing, but the role of the right parietal lobe has been much less clear. This study used the intraoperative cortical electrical stimulation approach to investigate neural dissociation in the right parietal cortex for subtraction and…
Descriptors: Role, Subtraction, Brain Hemisphere Functions, Cognitive Processes
Gallo, David A.; Cramer, Stefanie J.; Wong, Jessica T.; Bennett, David A. – Neuropsychologia, 2012
Alzheimer's disease (AD) can impair metacognition in addition to more basic cognitive functions like memory. However, while global metacognitive inaccuracies are well documented (i.e., low deficit awareness, or anosognosia), the evidence is mixed regarding the effects of AD on local or task-based metacognitive judgments. Here we investigated local…
Descriptors: Evidence, Cues, Alzheimers Disease, Diseases
Paynter, Christopher A.; Kotovsky, Kenneth; Reder, Lynne M. – Neuropsychologia, 2010
When subjects are given the balls-and-boxes problem-solving task (Kotovsky & Simon, 1990), they move rapidly towards the goal after an extended exploratory phase, despite having no awareness of how to solve the task. We investigated possible non-conscious learning mechanisms by giving subjects three runs of the task while recording ERPs. Subjects…
Descriptors: Problem Solving, Brain Hemisphere Functions, Diagnostic Tests, Task Analysis
Reverberi, Carlo; Shallice, Tim; D'Agostini, Serena; Skrap, Miran; Bonatti, Luca L. – Neuropsychologia, 2009
Elementary deduction is the ability of unreflectively drawing conclusions from explicit or implicit premises, on the basis of their logical forms. This ability is involved in many aspects of human cognition and interactions. To date, limited evidence exists on its cortical bases. We propose a model of elementary deduction in which logical…
Descriptors: Cognitive Processes, Patients, Short Term Memory, Logical Thinking
Paynter, Christopher A.; Reder, Lynne M.; Kieffaber, Paul D. – Neuropsychologia, 2009
Subjects performed a rapid feeling-of-knowing task developed by (Reder, L. M., & Ritter, F. (1992). "What determines initial feeling of knowing? Familiarity with question terms, not with the answer." "Journal of Experimental Psychology: Learning, Memory, and Cognition," 18, 435-451), while event-related potentials (ERPs) were recorded to identify…
Descriptors: Familiarity, Memory, Experimental Psychology, Task Analysis
Davis, Nicole; Cannistraci, Christopher J.; Rogers, Baxter P.; Gatenby, J. Christopher; Fuchs, Lynn S.; Anderson, Adam W.; Gore, John C. – Neuropsychologia, 2009
We used functional magnetic resonance imaging (fMRI) to explore the patterns of brain activation associated with different levels of performance in exact and approximate calculation tasks in well-defined cohorts of children with mathematical calculation difficulties (MD) and typically developing controls. Both groups of children activated the same…
Descriptors: Computation, Arithmetic, Problem Solving, At Risk Persons
