Neural computation of log likelihood in control of saccadic eye movements

Article Abstract:

The lapse between the appearance of a target and the beginning of rapid eye movements cannot be explained by ordinary processes such as synaptic delays and conduction velocities, but the decision signal can be considered as a neural estimate of the log likelihood of the assumption that the target is present. The appearance of a target produces a signal in a decision unit to rise in a linear from at the rate 'r' from its initial value s(sub 0) until a certain threshold is reached when the eye movement starts.

Analysis, Visual evoked response, Visual evoked potentials

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Illusory shifts in visual direction accompany adaptation of saccadic eye movements

Article Abstract:

It is shown, by way of perceptual illusion, that traditional cancellation theories do not explain stability. The illusion showed that perceptual localization is based on signals that represent the size of the initially-intended saccade, rather than the size of the saccade that is ultimately executed. Signals that represent intended saccades lead to a visual comparison process that maintains perceptual stability throughout saccades.

Perception, Perception (Psychology)

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Premotor commands encode monocular eye movements

Article Abstract:

The coordination of binocular eye movements was debated by Hering and Helmholtz over 100 years ago, with Hering believing that binocular movements were innervated by common command signals and Helmholtz stating that each eye is independently controlled. A new study shows that Hering's hypothesis is probably incorrect. Details of the findings are presented.

Binocular vision

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