Abstract
We constructed probabilistic models of afferent inputs and compartmental models of interneurons in the cricket cercal system to examine the effects of dendritic morphology, distribution of synaptic inputs, and membrane properties on interneuron directional tuning properties. The mean directional tuning of afferent inputs to an interneuron was an excellent predictor of its directional tuning. Location of the synapses on the interneurons' dendrites was not essential to determining tuning characteristics, but had a substantial effect on sensitivity. Thus, we conclude that both sampling of the afferent population, and anatomical distribution of synaptic inputs are important determinants of an interneuron's directional response.
Original language | English (US) |
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Pages (from-to) | 45-52 |
Number of pages | 8 |
Journal | Neurocomputing |
Volume | 52-54 |
DOIs | |
State | Published - Jun 2003 |
Externally published | Yes |
Keywords
- Compartment models
- Gaussian mixtures
- Neural maps
- Sensory systems
- Structure/function
ASJC Scopus subject areas
- Computer Science Applications
- Cognitive Neuroscience
- Artificial Intelligence