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Showing 1–6 of 6 results
Advanced filters: Author: Armin Bahl Clear advanced filters

  • In response to the movement of its visual world, Drosophila is capable of optomotor response in head and body turning, as well as a visual fixation response. This study shows that blocking the visual pathway activity responsible for optokinetic response in flies does not affect the visual fixation response, suggesting two distinct pathways for processing each set of information. By doing so, the authors also devised a neural and behavioral hierarchy in fly visual system where fixation behavior and the neurons mediating fixation response are upstream of optokinetic response as performed by lobula plate neurons.

    • Armin Bahl
    • Georg Ammer
    • Alexander Borst
    Research
    Nature Neuroscience
    Volume: 16, P: 730-738

  • Bahl and Engert show that larval zebrafish can temporally integrate sensory information. The authors then use brain-wide functional imaging to search for, characterize and model brain areas that are well-suited to implement the underlying processes.

    • Armin Bahl
    • Florian Engert
    Research
    Nature Neuroscience
    Volume: 23, P: 94-102

  • How visual social information informs movement is unclear. Here, the authors characterise the algorithm zebrafish use to transform visual inputs from neighbours into movement decisions during collective swimming behavior. The authors can also predict the neural circuits involved in transforming the visual input into movement decisions.

    • Roy Harpaz
    • Minh Nguyet Nguyen
    • Florian Engert
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-14

  • Using a combination of behavioral and physiological approaches, the authors show that ON and OFF motion detection pathways in Drosophila exhibit distinct temporal tuning properties. Computational modeling suggests that these asymmetric tuning properties improve the fly's ability to reliably estimate velocity in natural environments.

    • Aljoscha Leonhardt
    • Georg Ammer
    • Alexander Borst
    Research
    Nature Neuroscience
    Volume: 19, P: 706-715

  • This study uses calcium imaging to show that T4 and T5 neurons are divided in specific subpopulations responding to motion in four cardinal directions, and are specific to ON versus OFF edges, respectively; when either T4 or T5 neurons were genetically blocked, tethered flies walking on air-suspended beads failed to respond to the corresponding visual stimuli.

    • Matthew S. Maisak
    • Juergen Haag
    • Alexander Borst
    Research
    Nature
    Volume: 500, P: 212-216