Abstract
It has been suggested that long-term depression (LTD) of parallel fibre (PF) synapses enables a cerebellar Purkinje cell (PC) to learn to recognise PF activity patterns. We investigate the recognition of PF patterns that have been stored by LTD of AMPA receptors in a multi-compartmental PC model with a passive soma. We iind that a corresponding artificial neural network outperforms a PC model with active dendrites by an order of magnitude. Removal of the dendritic ion channels leads to a further decrease in performance. Another effect of the active dendrites is an afterhyperpolarization response to novel PF patterns. Thus, the LTD based storage of PF patterns can lead to a potentiated late PC response. (C) 2001 Elsevier Science B.V. All rights reserved.
Original language | English |
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Pages (from-to) | 383-388 |
Number of pages | 6 |
Journal | Neurocomputing |
Volume | 38-40 |
DOIs | |
Publication status | Published - Jun 2001 |
Keywords
- cerebellum Purkinje cells
- LTD
- pattern recognition
- learning
- ACTIVE MEMBRANE MODEL
- SIMULATION
- RESPONSES