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Showing 1–8 of 8 results
Advanced filters: Author: Georg Ammer Clear advanced filters

  • A single cell type in the Drosophila visual system implements motion-opponent inhibition at multiple consecutive circuit levels. This neural architecture enables high stimulus selectivity without compromising sensitivity under noisy conditions.

    • Georg Ammer
    • Etienne Serbe-Kamp
    • Alexander Borst
    ResearchOpen Access
    Nature Neuroscience
    Volume: 26, P: 1894-1905

  • 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

  • Asymmetric subcellular mRNA distribution is important for local translation of neuronal mRNAs. Here the authors employed MS2 live-cell imaging and showed that the reporter mRNA containing the 3’ UTR of Rgs4 shows an anterograde transport bias, dependent on neuronal activity and the protein Staufen2, and mediates sustained mRNA recruitment to synapses.

    • Karl E. Bauer
    • Inmaculada Segura
    • Michael A. Kiebler
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-13

  • 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

  • Managing forests for the supply of multiple ecosystem services (ES) is key given potential trade-offs among services. Here, the authors analyse how forest stand attributes generate trade-offs among ES and the relative contribution of forest attributes and environmental factors to predict services.

    • María R. Felipe-Lucia
    • Santiago Soliveres
    • Eric Allan
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-11

  • 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