Short-axon cells in the olfactory bulb: dendrodendritic synaptic interactions.

The Journal of Physiology
T V Getchell, G M Shepherd

Abstract

1. In the rabbit olfactory bulb, analysis has been carried out of extracellular unitary responses in the glomerular layer to olfactory nerve volleys. 2. Units in the glomerular layer responded to single volleys with single, double, triple or longer repetitive spike discharges. The shortest initial latencies are consistent with monosynaptic excitation from the olfactory nerves; longer latencies may reflect longer nerve pathways or polysynaptic connexions in the glomerular layer. 3. Like mitral and tufted cells, some glomerular layer units gave evidence of activation by discrete nerve bundles. This correlates with recent anatomical evidence for projections of discrete olfactory nerve bundles to the glomeruli. 4. Facilitation of glomerular layer units took the form of lower spike thresholds and shorter latencies, when testing with paired olfactory nerve volleys of weak strength at relatively short intervals (less than 40 msec). Supression took the form of raised thresholds, longer latencies and briefer repetitive discharges; this was particularly evident with strong volleys at long testing intervals. 5. The early period of facilitation and later period of suppression did not correlate with the recovery cycle of the olfactory nerve...Continue Reading

Citations

Jul 8, 1998·Proceedings of the National Academy of Sciences of the United States of America·S A Baccus
Nov 1, 1979·Biological cybernetics·W J Freeman
Apr 1, 1995·Progress in Neurobiology·K Mori, Y Yoshihara
Jul 1, 1992·Brain Research Bulletin·M Meredith
Apr 22, 1977·Brain Research·C E RibakE Roberts
May 22, 2001·The European Journal of Neuroscience·K DelaneyW Denk
Dec 31, 2005·Journal of Integrative Neuroscience·Walter J Freeman
Mar 15, 1986·Experientia·J W Scott
Apr 1, 1982·The Journal of Comparative Neurology·R A LeslieD A Hopkins
Feb 1, 1993·Microscopy Research and Technique·J W ScottN Buonviso
Mar 1, 1990·The Journal of Comparative Neurology·H Baker, C A Greer
Feb 22, 1991·The Journal of Comparative Neurology·D P Wellis, J W Scott
Dec 15, 1987·The Journal of Comparative Neurology·C M GallJ W Haycock
Jan 1, 1979·The Journal of Comparative Neurology·J P Cummings, D L Felten
Apr 1, 1982·Environmental Health Perspectives·V A Benignus, J D Prah
Jul 15, 2006·Journal of Neurocytology·Wei R Chen, Gordon M Shepherd
May 1, 1996·Journal of Neurobiology·S L Sullivan, L Dryer
Oct 16, 2001·Journal of Neurophysiology·A R McQuiston, L C Katz
Jul 11, 1998·Journal of Neurophysiology·M Puopolo, O Belluzzi
May 1, 1996·Journal of Neurobiology·M T Shipley, M Ennis
Jan 1, 1978·Brain Research Bulletin·S P Schneider, F Macrides
Jul 9, 1976·Science·R O SchmittB H Smith

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