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Primary Motor Cortex Involvement in Initial Learning during Visuomotor Adaptation
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Riek, Stephan; Hinder, Mark R.; Carson, Richard G. – Neuropsychologia, 2012
Human motor behaviour is continually modified on the basis of errors between desired and actual movement outcomes. It is emerging that the role played by the primary motor cortex (M1) in this process is contingent upon a variety of factors, including the nature of the task being performed, and the stage of learning. Here we used repetitive TMS to…
Descriptors: Feedback (Response), Stimulation, Faculty Development, Psychomotor Skills
Anatomic, Clinical, and Neuropsychological Correlates of Spelling Errors in Primary Progressive Aphasia
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Shim, HyungSub; Hurley, Robert S.; Rogalski, Emily; Mesulam, M.-Marsel – Neuropsychologia, 2012
This study evaluates spelling errors in the three subtypes of primary progressive aphasia (PPA): agrammatic (PPA-G), logopenic (PPA-L), and semantic (PPA-S). Forty-one PPA patients and 36 age-matched healthy controls were administered a test of spelling. The total number of errors and types of errors in spelling to dictation of regular words,…
Descriptors: Phoneme Grapheme Correspondence, Verbal Communication, Spelling, Phonetics
The Association between Mild Traumatic Brain Injury History and Cognitive Control
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Pontifex, Matthew B.; O'Connor, Phillip M.; Broglio, Steven P.; Hillman, Charles H. – Neuropsychologia, 2009
The influence of multiple mild traumatic brain injuries (mTBIs) on neuroelectric and task performance indices of the cognitive control of action monitoring was assessed in individuals with and without a history of concussion. Participants completed a standard clinical neurocognitive assessment and the error-related negativity of the…
Descriptors: Head Injuries, Integrity, Brain, Neurological Impairments
Information Processing Differences and Similarities in Adults with Dyslexia and Adults with Attention Deficit Hyperactivity Disorder during a Continuous Performance Test: A Study of Cortical Potentials
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Dhar, Monica; Been, Pieter H.; Minderaa, Ruud B.; Althaus, Monika – Neuropsychologia, 2010
Twenty male adults with ADHD, 16 dyslexic adults, 15 comorbid adults, and 16 normal controls were compared on performance and underlying brain responses, during a cued Continuous Performance Test (O-X CPT), with the aim of discovering features of information processing differentiating between the groups. The study evaluated both cue- and…
Descriptors: Reaction Time, Dyslexia, Performance Tests, Attention Deficit Hyperactivity Disorder
Better or Worse than Expected? Aging, Learning, and the ERN
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Eppinger, Ben; Kray, Jutta; Mock, Barbara; Mecklinger, Axel – Neuropsychologia, 2008
This study examined age differences in error processing and reinforcement learning. We were interested in whether the electrophysiological correlates of error processing, the error-related negativity (ERN) and the feedback-related negativity (FRN), reflect learning-related changes in younger and older adults. To do so, we applied a probabilistic…
Descriptors: Feedback (Response), Older Adults, Age Differences, Reinforcement
Delineation of Early Attentional Control Difficulties in Fragile X Syndrome: Focus on Neurocomputational Changes
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Scerif, Gaia; Cornish, Kim; Wilding, John; Driver, Jon; Karmiloff-Smith, Annette – Neuropsychologia, 2007
Fragile X syndrome (FXS) is due to the silencing of a single X-linked gene and it is associated with striking attentional difficulties. As FXS is well characterised at the cellular level, the condition provides a unique opportunity to investigate how a genetic dysfunction can impact on the development of neurocomputational properties relevant to…
Descriptors: Genetic Disorders, Mental Retardation, Attention Control, Children