English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Internal Structure of the Fly Elementary Motion Detector

MPS-Authors
/persons/resource/persons38813

Eichner,  H.
Department: Systems and Computational Neurobiology / Borst, MPI of Neurobiology, Max Planck Society;

/persons/resource/persons38912

Joesch,  M.
Department: Systems and Computational Neurobiology / Borst, MPI of Neurobiology, Max Planck Society;

/persons/resource/persons39057

Schnell,  B.
Department: Systems and Computational Neurobiology / Borst, MPI of Neurobiology, Max Planck Society;

/persons/resource/persons39035

Reiff,  D. F.
Department: Systems and Computational Neurobiology / Borst, MPI of Neurobiology, Max Planck Society;

/persons/resource/persons38770

Borst,  A.
Department: Systems and Computational Neurobiology / Borst, MPI of Neurobiology, Max Planck Society;

Locator
There are no locators available
Fulltext (public)
There are no public fulltexts available
Supplementary Material (public)
There is no public supplementary material available
Citation

Eichner, H., Joesch, M., Schnell, B., Reiff, D. F., & Borst, A. (2011). Internal Structure of the Fly Elementary Motion Detector. Neuron, 70(6), 1155-1164.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0012-1ED6-5
Abstract
Recent experiments have shown that motion detection in Drosophila starts with splitting the visual input into two parallel channels encoding brightness increments (ON) or decrements (OFF). This suggests the existence of either two (ON-ON, OFF-OFF) or four (for all pairwise interactions) separate motion detectors. To decide between these possibilities, we stimulated flies using sequences of ON and OFF brightness pulses while recording from motion-sensitive tangential cells. We found direction-selective responses to sequences of same sign (ON-ON, OFF-OFF), but not of opposite sign (ON-OFF, OFF-ON), refuting the existence of four separate detectors. Based on further measurements, we propose a model that reproduces a, variety of additional experimental data sets, including ones that were previously interpreted as support for four separate detectors. Our experiments and the derived model mark an important step in guiding further dissection of the fly motion detection circuit.