Function and coding in the blowfly H1 neuron during naturalistic optic flow

van Hateren JH, Kern R, Schwerdtfeger G, Egelhaaf M (2005)
J Neurosci. 25(17): 4343-4352.

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Naturalistic stimuli, reconstructed from measured eye movements of flying blowflies, were replayed on a panoramic stimulus device. The directional movement-sensitive H1 neuron was recorded from blowflies watching these stimuli. The response of the H1 neuron is dominated by the response to fast saccadic turns into one direction. The response between saccades is mostly inhibited by the front-to-back optic flow caused by the forward translation during flight. To unravel the functional significance of the H1 neuron, we replayed, in addition to the original behaviorally generated stimulus, two targeted stimulus modifications: ( 1) a stimulus in which flow resulting from translation was removed ( this stimulus produced strong intersaccadic responses); and ( 2) a stimulus in which the saccades were removed by assuming that the head follows the smooth flight trajectory ( this stimulus produced alternating zero or nearly saturating spike rates). The responses to the two modified stimuli are strongly different from the response to the original stimulus, showing the importance of translation and saccades for the H1 response to natural optic flow. The response to the original stimulus thus suggests a double function for the H1 neuron, assisting two major classes of movement-sensitive output neurons targeted by H1. First, its strong response to saccadesmayfunction as a saccadic suppressor ( via one of its target neurons) for cells involved in figure - ground discrimination. Second, its intersaccadic response may increase the signal-to-noise ratio (SNR) of wide-field neurons involved in detecting translational optic flow between saccades, in particular when flying speeds are low or when object distances are large.
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J Neurosci.
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25
Zeitschriftennummer
17
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4343-4352
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van Hateren JH, Kern R, Schwerdtfeger G, Egelhaaf M. Function and coding in the blowfly H1 neuron during naturalistic optic flow. J Neurosci. 2005;25(17):4343-4352.
van Hateren, J. H., Kern, R., Schwerdtfeger, G., & Egelhaaf, M. (2005). Function and coding in the blowfly H1 neuron during naturalistic optic flow. J Neurosci., 25(17), 4343-4352. doi:10.1523/JNEUROSCI.0616-05.2005
van Hateren, J. H., Kern, R., Schwerdtfeger, G., and Egelhaaf, M. (2005). Function and coding in the blowfly H1 neuron during naturalistic optic flow. J Neurosci. 25, 4343-4352.
van Hateren, J.H., et al., 2005. Function and coding in the blowfly H1 neuron during naturalistic optic flow. J Neurosci., 25(17), p 4343-4352.
J.H. van Hateren, et al., “Function and coding in the blowfly H1 neuron during naturalistic optic flow”, J Neurosci., vol. 25, 2005, pp. 4343-4352.
van Hateren, J.H., Kern, R., Schwerdtfeger, G., Egelhaaf, M.: Function and coding in the blowfly H1 neuron during naturalistic optic flow. J Neurosci. 25, 4343-4352 (2005).
van Hateren, JH, Kern, Roland, Schwerdtfeger, G, and Egelhaaf, Martin. “Function and coding in the blowfly H1 neuron during naturalistic optic flow”. J Neurosci. 25.17 (2005): 4343-4352.
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32 Zitationen in Europe PMC

Daten bereitgestellt von Europe PubMed Central.

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Zeil J, Hemmi JM., J Comp Physiol A Neuroethol Sens Neural Behav Physiol 192(1), 2006
PMID: 16341863
Encoding of naturalistic optic flow by a population of blowfly motion-sensitive neurons.
Karmeier K, van Hateren JH, Kern R, Egelhaaf M., J Neurophysiol 96(3), 2006
PMID: 16687623
Motion adaptation leads to parsimonious encoding of natural optic flow by blowfly motion vision system.
Heitwerth J, Kern R, van Hateren JH, Egelhaaf M., J Neurophysiol 94(3), 2005
PMID: 15917319
Responses of blowfly motion-sensitive neurons to reconstructed optic flow along outdoor flight paths.
Boeddeker N, Lindemann JP, Egelhaaf M, Zeil J., J Comp Physiol A Neuroethol Sens Neural Behav Physiol 191(12), 2005
PMID: 16133502

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