Influence of dendritic spines shape changes by learning

Author

Spravedlyvyy, V. ; Herzog, A. ; Kube, K. ; Michaelis, B. ; Braun, K. ; Schnabel, Raik

Author_Institution

Inst. of Electron., Signal Process. & Commun., Otto-von-Guericke Univ. Magdeburg, Germany

Volume

4

fYear

2004

fDate

25-29 July 2004

Firstpage

3107

Abstract

The role of dendritic spines in information processing of a neuron is still not clear. But it is known that they change its shape rapidly and fast during learning processes. These effects may be important for storing of information (memory). We show the influence of shape variations on the electrical signal propagation trough dendritic spines by biologically realistic electrical simulation. Basic properties of electrical signal transmission of single spines are estimated and approximated depend on the individual shape. Learning processes to adjust specific electrical properties are discussed and a possible mechanism is introduced.

Keywords

learning (artificial intelligence); neural nets; neurophysiology; dendritic spines; electrical signal transmission; information processing; learning processes; neurons; Biological system modeling; Biomedical signal processing; Biomembranes; Geometry; Head; Mathematical model; Neck; Neurons; Numerical simulation; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Neural Networks, 2004. Proceedings. 2004 IEEE International Joint Conference on

Conference_Location

Budapest

ISSN

1098-7576

Print_ISBN

0-7803-8359-1

Type

conf

DOI

10.1109/IJCNN.2004.1381168

Filename

1381168