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Science 19 May 1978:
Vol. 200. no. 4343, pp. 787 - 790
DOI: 10.1126/science.644322
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Articles

Science, Vol 200, Issue 4343, 787-790
Copyright © 1978 by American Association for the Advancement of Science

articles

Spine stems on tectal interneurons in jewel fish are shortened by social stimulation

RG Coss and A Globus

Spined pyriform interneurons in community-reared jewel fish have more dendritic branches and spines in the deep tectal layers than those in isolates reared without visual-tactile contact with conspecifics. Furthermore, in the same dendritic loci in which the community-reared fish had more spines, the spine stems were shorter. The findings suggest that social stimulation induces localized formation of spines, which swell with synaptic activation. Shortening of the spine stem through elongated swelling of the spine head is likely to alter synaptic effectiveness through changes in electrotonic conductance.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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Modulatory Role of Drebrin on the Cytoskeleton within Dendritic Spines in the Rat Cerebral Cortex.
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Dendritic spines: convergence of theory and experiment.
C Koch, A Zador, and T. Brown (1992)
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Exercise during development induces an increase in Purkinje cell dendritic tree size.
J. Pysh and G. Weiss (1979)
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Goldfish retina: a correlate between cone activity and morphology of the horizontal cell in clone pedicules.
J. Raynauld, Laviolette JR, and H. Wagner (1979)
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