M Iu Sherman

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A motion model for the early stages of motion processing in the visual cortex that focuses on velocity properties is presented. The model presents analytically the correlation between the velocity tuning curve and various cell parameters. The building block for this model is the rebound response, which makes possible the detection of spatial and temporal(More)
A model for the early stages of motion processing in the visual cortex is presented. The 'building block' for this model is the 'rebound response', which is the neuronal response evoked when a sufficient inhibitory stimulus is turned off. This response enables detection of temporal changes when the stimulus involves spatial changes. The model suggests that(More)
Monotrichous bacteria V. harveyi periodically reverse their direction when moving in a liquid environment. It is reported that in a uniform surrounding the motility pattern is composed of a repeat of two sequential runs: a short and a long one separated by a reversal. The main duration of the short run was 0.4 sec and of the long one - 1.3 sec. Upon the(More)
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