Topic: direction of revolution

Visual cortical neurons are known to encode the position and motion direction of specific stimuli retrospectively, without any locomotion or task demand. Hippocampus, though receives projections from these visual cortical areas, is hypothesized to require self-motion or cognitive task to generate allocentric spatial selectivity that is abstract and prospective. In an attempt to bridge these disparities, we measured hippocampal responses to a moving bar of light in a body-fixed rat, without imposing any task demand on the animal. For a revolving bar, about 70% of dorsal CA1 neurons showed stabl