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Table 2 Probabilities of synapses (from Table 1) and of potential 'contacts' between axons and dendrites for each neuron type

From: Axon and dendrite geography predict the specificity of synaptic connections in a functioning spinal cord network

 

Dendrites

Axons

dlc

ain

cin

din

mn

RB ipsi

     

   Synapse

0.63

0.13

0.09

+ (0.13)

+(0.02)

   Contact

0.65

0.29

0.10

0.29

0.04

dlc contra

     

   Synapse

0+ (0.04)

0.33

0.43

0.33

0.46

   Contact

0.08

0.89

0.64

0.54

0.82

aIN ipsi

     

   Synapse

(0.13)

0.25

0.15

0.2

0.33

   Contact

0.28

0.72

0.57

0.60

0.50

cIN contra

     

   Synapse

0+ (0.04)

0++ (0.40)

0.26

++ (0.24)

0++ (0.37)

   Contact

0.08

0.88

0.61

0.52

0.80

dIN ipsi

     

   Synapse

+ (0.04)

*++ (0.42)

*++ (0.34)

*++ (0.29)

*++ (0.37)

   Contact

0.08

0.91

0.73

0.64

0.80

mn ipsi

     

   Synapse

(0.00)

(0.41)

(0.18)

(0.10)

(0.45)

   Contact

0.00

0.89

0.40

0.22

0.98

  1. Synapse probabilities in bold are those from recordings based on more random sampling. Where there are no data from recordings, estimates of synaptic contact probabilities (in parentheses) are 46% of the anatomically estimated contact probabilities. For each neuron type, ipsi refers to synapses made on the same side and contra refers to synapses made on the opposite side. +, rare connections inferred from other experiments; ++, common connections but no quantitative data; *, connections frequent but preliminary recordings were used to select pairs of neurons that were connected, so connection probabilities are not meaningful.