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Evaluation and statistical judgment of neural responses to sinusoidal stimulation in cases with superimposed drift and noise

, : Evaluation and statistical judgment of neural responses to sinusoidal stimulation in cases with superimposed drift and noise. Biological Cybernetics 33(2): 113-120

Time histograms of neural responses evoked by sinusoidal stimulation often contain a slow drifting and an irregular noise which disturb Fourier analysis of these responses. The extent to which a linear drift influences the Fourier analysis is evaluated and a combined Fourier and linear regression analysis is developed for detecting and correcting for such a linear drift. Usefulness of this correcting method is demonstrated for the time histograms of actual eye movements and Purkinje cell discharges evoked by sinusoidal rotation of rabbits in the horizontal plane. In section 3, the analysis of variance is adopted for estimating the probability of the random occurrence of the response curve extracted by Fourier analysis from noise. This method proved useful for avoiding false judgments as to whether the response curve was meaningful, particularly when the response was small relative to the contaminating noise.


PMID: 465582

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