Reciprocal inhibitory connections within a neural network for rotational optic-flow processing
Neurons in the visual system of the blowfly have large receptive fields that are selective for specific optic flow fields. Here, we studied the neural mechanisms underlying flow-field selectivity in proximal Vertical System (VS)-cells, a particular subset of tangential cells in the fly. These cells...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2007-10-01
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| Series: | Frontiers in Neuroscience |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/neuro.01.1.1.008.2007/full |
| _version_ | 1818542608285171712 |
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| author | Juergen Haag Juergen Haag Alexander Borst Alexander Borst |
| author_facet | Juergen Haag Juergen Haag Alexander Borst Alexander Borst |
| author_sort | Juergen Haag |
| collection | DOAJ |
| description | Neurons in the visual system of the blowfly have large receptive fields that are selective for specific optic flow fields. Here, we studied the neural mechanisms underlying flow-field selectivity in proximal Vertical System (VS)-cells, a particular subset of tangential cells in the fly. These cells have local preferred directions that are distributed such as to match the flow field occurring during a rotation of the fly. However, the neural circuitry leading to this selectivity is not fully understood. Through dual intracellular recordings from proximal VS cells and other tangential cells, we characterized the specific wiring between VS cells themselves and between proximal VS cells and horizontal sensitive tangential cells. We discovered a spiking neuron (Vi) involved in this circuitry that has not been described before. This neuron turned out to be connected to proximal VS cells via gap junctions and, in addition, it was found to be inhibitory onto VS1. |
| first_indexed | 2024-12-11T22:24:20Z |
| format | Article |
| id | doaj.art-832d24f24ab54304b0fc1e3132a99c12 |
| institution | Directory Open Access Journal |
| issn | 1662-453X |
| language | English |
| last_indexed | 2024-12-11T22:24:20Z |
| publishDate | 2007-10-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Neuroscience |
| spelling | doaj.art-832d24f24ab54304b0fc1e3132a99c122022-12-22T00:48:20ZengFrontiers Media S.A.Frontiers in Neuroscience1662-453X2007-10-01110.3389/neuro.01.1.1.008.200736Reciprocal inhibitory connections within a neural network for rotational optic-flow processingJuergen Haag0Juergen Haag1Alexander Borst2Alexander Borst3Bernstein Center Munich, University Hospital Munich GrosshadernMax-Planck-Institute of Neurobiology, Department of Systems and Computational NeurobiologyBernstein Center Munich, University Hospital Munich GrosshadernMax-Planck-Institute of Neurobiology, Department of Systems and Computational NeurobiologyNeurons in the visual system of the blowfly have large receptive fields that are selective for specific optic flow fields. Here, we studied the neural mechanisms underlying flow-field selectivity in proximal Vertical System (VS)-cells, a particular subset of tangential cells in the fly. These cells have local preferred directions that are distributed such as to match the flow field occurring during a rotation of the fly. However, the neural circuitry leading to this selectivity is not fully understood. Through dual intracellular recordings from proximal VS cells and other tangential cells, we characterized the specific wiring between VS cells themselves and between proximal VS cells and horizontal sensitive tangential cells. We discovered a spiking neuron (Vi) involved in this circuitry that has not been described before. This neuron turned out to be connected to proximal VS cells via gap junctions and, in addition, it was found to be inhibitory onto VS1.http://journal.frontiersin.org/Journal/10.3389/neuro.01.1.1.008.2007/fullflow fieldgap-junctioninsectmotion detectionVision |
| spellingShingle | Juergen Haag Juergen Haag Alexander Borst Alexander Borst Reciprocal inhibitory connections within a neural network for rotational optic-flow processing Frontiers in Neuroscience flow field gap-junction insect motion detection Vision |
| title | Reciprocal inhibitory connections within a neural network for rotational optic-flow processing |
| title_full | Reciprocal inhibitory connections within a neural network for rotational optic-flow processing |
| title_fullStr | Reciprocal inhibitory connections within a neural network for rotational optic-flow processing |
| title_full_unstemmed | Reciprocal inhibitory connections within a neural network for rotational optic-flow processing |
| title_short | Reciprocal inhibitory connections within a neural network for rotational optic-flow processing |
| title_sort | reciprocal inhibitory connections within a neural network for rotational optic flow processing |
| topic | flow field gap-junction insect motion detection Vision |
| url | http://journal.frontiersin.org/Journal/10.3389/neuro.01.1.1.008.2007/full |
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