Neural dynamics for landmark orientation and angular path integration

Drosophila melanogaster exhibits a combined neural response to visual landmarks and self-motion cues for orientation, utilizing persistent activity in the absence of these cues.

• Neurons in the ellipsoid body of the fly brain integrate information from visual landmarks and self-motion for navigation.
• The population response encodes the fly's orientation relative to its environment when visual cues are present.
• In darkness, self-motion cues are relied upon to maintain orientation information.
• Even when both visual and self-motion information is unavailable, these neurons demonstrate persistent activity, suggesting a role in short-term memory.
• The anatomical arrangement of these neurons indicates characteristics similar to proposed structures that support navigational circuits.

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