ArticleFrontiers in systems neuroscience2010
Octopaminergic modulation of temporal frequency coding in an identified optic flow-processing interneuron.
Article in Frontiers in systems neuroscience, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.
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32 citing papers in PubMed.
- Drosophila DNp03 descending neurons serve as a hub within a flight saccade network.Current biology : CB · 2026Article
- Understanding the mechanism of facilitation in hoverfly TSDNs.PLoS computational biology · 2025Article
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- Social state gates vision using three circuit mechanisms inbioRxiv : the preprint server for biology · 2024Article
- Organization of an ascending circuit that conveys flight motor state in Drosophila.Current biology : CB · 2024Article
- Bioinspired figure-ground discrimination via visual motion smoothing.PLoS computational biology · 2023Article
- Impact of walking speed and motion adaptation on optokinetic nystagmus-like head movements in the blowfly Calliphora.Scientific reports · 2022Article
- The physiological basis for contrast opponency in motion computation in Drosophila.Nature communications · 2021Article
- Visuo-Motor Feedback Modulates Neural Activities in the Medulla of the Honeybee,The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021Article
- Neural Circuits Underlying Behavioral Flexibility: Insights FromFrontiers in behavioral neuroscience · 2021Review
- Non-canonical Receptive Field Properties and Neuromodulation of Feature-Detecting Neurons in Flies.Current biology : CB · 2020Article
- Neuromodulation of insect motion vision.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2020Review
- Differential Tuning to Visual Motion Allows Robust Encoding of Optic Flow in the Dragonfly.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019Article
- Olfactory and Neuromodulatory Signals Reverse Visual Object Avoidance to Approach in Drosophila.Current biology : CB · 2019Article
- Modulation of voltage-dependent K+ conductances in photoreceptors trades off investment in contrast gain for bandwidth.PLoS computational biology · 2018Article
- Behavioral state modulates the ON visual motion pathway ofProceedings of the National Academy of Sciences of the United States of America · 2018Article
- Eyes Matched to the Prize: The State of Matched Filters in Insect Visual Circuits.Frontiers in neural circuits · 2018Review
- Visual Circuits for Direction Selectivity.Annual review of neuroscience · 2017Review
- Comparative system identification of flower tracking performance in three hawkmoth species reveals adaptations for dim light vision.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2017Article
- Olfactory neuromodulation of motion vision circuitry in Drosophila.Current biology : CB · 2015Article
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Abstract
Flying generates predictably different patterns of optic flow compared with other locomotor states. A sensorimotor system tuned to rapid responses and a high bandwidth of optic flow would help the animal to avoid wasting energy through imprecise motor action. However, neural processing that covers a higher input bandwidth itself comes at higher energetic costs which would be a poor investment when the animal was not flying. How does the blowfly adjust the dynamic range of its optic flow-processing neurons to the locomotor state? Octopamine (OA) is a biogenic amine central to the initiation and maintenance of flight in insects. We used an OA agonist chlordimeform (CDM) to simulate the widespread OA release during flight and recorded the effects on the temporal frequency coding of the H2 cell. This cell is a visual interneuron known to be involved in flight stabilization reflexes. The application of CDM resulted in (i) an increase in the cell's spontaneous activity, expanding the inhibitory signaling range (ii) an initial response gain to moving gratings (20-60 ms post-stimulus) that depended on the temporal frequency of the grating and (iii) a reduction in the rate and magnitude of motion adaptation that was also temporal frequency-dependent. To our knowledge, this is the first demonstration that the application of a neuromodulator can induce velocity-dependent alterations in the gain of a wide-field optic flow-processing neuron. The observed changes in the cell's response properties resulted in a 33% increase of the cell's information rate when encoding random changes in temporal frequency of the stimulus. The increased signaling range and more rapid, longer lasting responses employed more spikes to encode each bit, and so consumed a greater amount of energy. It appears that for the fly investing more energy in sensory processing during flight is more efficient than wasting energy on under-performing motor control.
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