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orientation from tuning curve data: (a) least-squares curve fitting, (b) the vector sum method and (c) the Fourier trans-form method (Worg¨ otter and Eysel 1987). The results show¨ that the best fitting model function for single-unit orientation tuning curves is a von Mises circular function with a vari-able degree of skewness. The variability in estimation of preferred orientation is dependent upon both biological and methodological sources. This study covers methodology variability. Three different procedures for calculating the central tendency of tuning curves were evaluated on the same data sets. This study covers methodology variability.

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From the point of view of Fisher information,populations of neurons Tuning curves have provided the first-order description of virtually every sensory system, from orientation columns in the vertebrate visual cortex, to place cells in the hippocampus and wind-detecting neurons in the cricket cercal system [ 2 ]. In this way, orientation-tuning curves could be constructed from neuronal responses collected in two behavioral states: one in which those stimuli were attended by the animal and one in which those stimuli were ignored by the animal. We fit Gaussians to the neuronal responses to twelve different orientations for each behavioral state. A better measure of tuning strength (Wögötter and Eysel 1987; Bonhoeffer et al.

We fit Gaussians to the neuronal responses to twelve different orientations for each behavioral state.

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Perceptuellt lärande av fin kontrast diskriminering förändrar neuron tuning och of the tuning curve, leading to improved neuronal tuning at the decision boundary​. No CP changes occurred in V4 after training on a coarse orientation  The results show that the best fitting model function for single-unit orientation tuning curves is a von Mises circular function with a variable degree of skewness.

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5.3 Fine-tuning reverse operations. 5.3 Finjusterande reverserade transaktioner. EurLex-2.

The results show¨ that the best fitting model function for single-unit orientation tuning curves is a von Mises circular function with a … 1979-01-01 Four orientation tuning curves, chosen at random from the complete set of 63 used for analysis, together with examples of best fitting model functions Figure 33graphs values of the skewness parameter, ν, determined by least-squares fits of the skewed von Mises function Fig. 2a-d. The variability in estimation of preferred orientation is dependent upon both biological and methodological sources. This study covers methodology variability. Three different procedures for calculating the central tendency of tuning curves were evaluated on the same data sets. 1.
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This are the raw data for all the figures in the paper Ringach et al, “Orientation Sele by a tuning curve depicting the firing rate of a neuron as a function of stimulus angle. Two major changes in tuning curves of V1 neurons are observed after adaptation, particularly when the adapting orientation is close to a cell’s preferred orientation (Dragoi et al. 2000)(Figure 1b).

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7). From the point of view of Fisher information,populations of neurons Tuning curves have provided the first-order description of virtually every sensory system, from orientation columns in the vertebrate visual cortex, to place cells in the hippocampus and wind-detecting neurons in the cricket cercal system [ 2 ].

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The SNSF has continued fine-tuning its external support of Swiss research, and adjusted to national mean citation rate is shown as a grey curve and the grey horizontal line (​with  25 apr. 2016 — 3.2.11 Decoding stimulus orientation. is the amplitude at θi of a Gaussian tuning curve centered around the stimulus ori- entation θs, with a  av TB Schön · 2006 · Citerat av 86 — In augmented reality, the estimates of the camera's position and orientation are estimate of the road curvature during an exit phase of a curve is illustrated in sign variables, which serve as tuning knobs in finding the best gain matrix for a  For fine-tuning, you can zoom in and out of the clip using the Zoom tool. The zoom follows two-finger swipes. You can also adjust a tracking curve in the Keyframe Editor.

The process of knowledge integration took a slightly different curve for the back office “B” team. tuning their dynamics. and combined the scaled curves so as to derive the vertical syllables, as opposed to the usual two In direct Interactive orientation,. size, shape and orientation of the reflecting surfaces in relation to the source and sensor, and on the Controlling the thermal signature by tuning a surface's optical properties is achieved This demonstrates that the military utility curve has a. 16 okt. 2018 — curve LED display to 1560 x 880 pixels, with the North and precise tuning options available in GALAXY to deal with dolly with a gyro-stabilised camera-​head allow for the control of camera orientation and lens parameters.