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The Relation between Synaptic Structure and Functional Properties of Small Neuronal Networks in Cat Auditory Cortex

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Kindermann, L. , Redies, H. , Brandner, S. and Creutzfeldt, O. (1993): The Relation between Synaptic Structure and Functional Properties of Small Neuronal Networks in Cat Auditory Cortex , Gene - Brain - Behaviour, Thieme. .
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Abstract:

Cell pairs in the auditory cortex of the cat were recorded with one micro-electrode and a computer system which could distinguish between their spikes through a self-learning pattern recognition algorithm. Synaptic connections were derived from the cross-correlation function between the two spike-trains. Each pair was assigned to one of three classes: No connection (NC), excitatory connection (EXC) and common input from a third neuron (CI). Inhibitory influences could not be revealed due to their weak expression in cross-correlograms. We found 22% of cell-pairs having excitatory connections, and 52% which shared a common input. 36% of directly neighbouring neurons show no correlation between their spike-trains. 10% were of mixed EXC&CI type

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10484
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