Tactile Coactivation-Induced Changes in Spatial Discrimination Performance
نویسندگان
چکیده
منابع مشابه
Tactile coactivation-induced changes in spatial discrimination performance.
We studied coactivation-based cortical plasticity at a psychophysical level in humans. For induction of plasticity, we used a protocol of simultaneous pairing of tactile stimulation to follow as closely as possible the idea of Hebbian learning. We reported previously that a few hours of tactile coactivation resulted in selective and reversible reorganization of receptive fields and cortical map...
متن کاملImprovement and decline in tactile discrimination behavior after cortical plasticity induced by passive tactile coactivation.
Perceptual learning can be induced by passive tactile coactivation without attention or reinforcement. We used functional MRI (fMRI) and psychophysics to investigate in detail the specificity of this type of learning for different tactile discrimination tasks and the underlying cortical reorganization. We found that a few hours of Hebbian coactivation evoked a significant increase of primary (S...
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Amra Hodzic,1,2 Ralf Veit,1 Ahmed A. Karim,1,2 Michael Erb,3 and Ben Godde1,4 1Institute of Medical Psychology and Behavioral Neurobiology, University of Tübingen, D-72074 Tübingen, Germany, 2International Max Planck Research School, Graduate School of Neural and Behavioral Sciences, D-72074 Tübingen, Germany, 3Department of Neuroradiology, Section on Experimental Magnetic Resonance of the Cent...
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The aim was to investigate tactile discrimination performance under various active and passive conditions and explore the influence of visual information. Participants had to discriminate the direction of lateral pin strokes on their fingertip under three conditions. In one condition (" static ") only tactile stimulation was provided. In a second condition (" active ") the shear force device wa...
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Self-performed arm movements are known to increase the tactile detection threshold (i.e., decrease of tactile sensitivity) which is part of a phenomenon called tactile suppression. Today, the origin and the effects of tactile suppression are not fully understood. Tactile discrimination tasks have been utilized to quantify the changes in tactile sensitivity due to arm movements and to identify t...
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ژورنال
عنوان ژورنال: The Journal of Neuroscience
سال: 2000
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.20-04-01597.2000