Motor Control: Basic Units of Cortical Output?
نویسندگان
چکیده
منابع مشابه
Motor Control: Basic Units of Cortical Output?
Observing movement evoked by stimulating a single cortical neuron has proven technically impossible - until now. A new study using intracellular stimulation has revealed that the basic unit of cortical output is not necessarily basic.
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High-frequency repetitive microstimulation has been widely used as a method of investigating the properties of cortical motor output. Despite its widespread use, few studies have investigated how activity evoked by high-frequency stimulation may interact with the existing activity of cortical cells resulting from natural synaptic inputs. A reasonable assumption might be that the stimulus-evoked...
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THE SEARCH FOR THE FUNDAMENTAL BUILDING BLOCK OF THE CEREBRAL CORTEX HAS HIGHLIGHTED THREE STRUCTURES, PERPENDICULAR TO THE CORTICAL SURFACE: (i) columns of neurons with radially invariant response properties, e.g., receptive field position, sensory modality, stimulus orientation or direction, frequency tuning etc., (ii) minicolumns of radially aligned cell bodies and (iii) bundles, constituted...
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Squares are experimental force versus extension data for 97 kb X-DNA dimers from figure 3 of (2); solid line is a fit of the entropic force required to extend a worm-like polymer. The fit parameters are the DNA length (L = 32.80 + 0.10 plm) and the persistence length (A = 53.4 ± 2.3 nm). Shown for comparison (dashed curve) is the freely jointed chain model (2) with L = 32.7 KILm and a segment l...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2004
ISSN: 0960-9822
DOI: 10.1016/j.cub.2004.04.025