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Buiatti, Tania; Skrap, Miran; Shallice, Tim – Brain and Cognition, 2013
Damage to the posterior parietal cortex (PPC) can lead to Optic Ataxia (OA), in which patients misreach to peripheral targets. Recent research suggested that the PPC might be involved not only in simple reaching tasks toward peripheral targets, but also in changing the hand movement trajectory in real time if the target moves. The present study…
Descriptors: Patients, Brain, Cancer, Task Analysis
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Herrington, John D.; Nymberg, Charlotte; Schultz, Robert T. – Brain and Cognition, 2011
Numerous studies implicate superior temporal sulcus (STS) in the perception of human movement. More recent theories hold that STS is also involved in the "understanding" of human movement. However, almost no studies to date have associated STS function with observable variability in action understanding. The present study directly associated STS…
Descriptors: Motion, Brain, Perception, Adults
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Ramsey, Richard; Cumming, Jennifer; Eastough, Daniel; Edwards, Martin G. – Brain and Cognition, 2010
It has been suggested that representing an action through observation and imagery share neural processes with action execution. In support of this view, motor-priming research has shown that observing an action can influence action initiation. However, there is little motor-priming research showing that imagining an action can modulate action…
Descriptors: Brain, Imagery, Observation, Motion
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Bruzzo, Angela; Gesierich, Benno; Wohlschlager, Andreas – Brain and Cognition, 2008
It is widely accepted that the brain processes biological and non-biological movements in distinct neural circuits. Biological motion, in contrast to non-biological motion, refers to active movements of living beings. Aim of our experiment was to investigate the mechanisms underlying mental simulation of these two movement types. Subjects had to…
Descriptors: Motion, Psychomotor Skills, Brain, Cognitive Processes
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Sharpe, James A. – Brain and Cognition, 2008
Smooth pursuit impairment is recognized clinically by the presence of saccadic tracking of a small object and quantified by reduction in pursuit gain, the ratio of smooth eye movement velocity to the velocity of a foveal target. Correlation of the site of brain lesions, identified by imaging or neuropathological examination, with defective smooth…
Descriptors: Eye Movements, Neurology, Motion, Brain
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Lencer, Rebekka; Trillenberg, Peter – Brain and Cognition, 2008
Smooth pursuit eye movements enable us to focus our eyes on moving objects by utilizing well-established mechanisms of visual motion processing, sensorimotor transformation and cognition. Novel smooth pursuit tasks and quantitative measurement techniques can help unravel the different smooth pursuit components and complex neural systems involved…
Descriptors: Feedback (Response), Eye Movements, Mental Disorders, Measurement Techniques
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Bernier, R.; Dawson, G.; Webb, S.; Murias, M. – Brain and Cognition, 2007
Imitation ability has consistently been shown to be impaired in individuals with autism. A dysfunctional execution/observation matching system has been proposed to account for this impairment. The EEG mu rhythm is believed to reflect an underlying execution/observation matching system. This study investigated evidence of differential mu rhythm…
Descriptors: Observation, Medicine, Imitation, Autism
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Samar, Vincent J.; Parasnis, Ila – Brain and Cognition, 2007
Samar and Parasnis [Samar, V. J., & Parasnis, I. (2005). Dorsal stream deficits suggest hidden dyslexia among deaf poor readers: correlated evidence from reduced perceptual speed and elevated coherent motion detection thresholds. "Brain and Cognition, 58," 300-311.] reported that correlated measures of coherent motion detection and perceptual…
Descriptors: Motion, Deafness, Young Adults, Reading Comprehension
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Samar, Vincent J.; Parasnis, Ila – Brain and Cognition, 2007
Studies have reported a right visual field (RVF) advantage for coherent motion detection by deaf and hearing signers but not non-signers. Yet two studies [Bosworth R. G., & Dobkins, K. R. (2002). Visual field asymmetries for motion processing in deaf and hearing signers. "Brain and Cognition," 49, 170-181; Samar, V. J., & Parasnis, I. (2005).…
Descriptors: Sign Language, Deafness, Intelligence Quotient, Motion