Article: Two dynamically distinct inhibitory networks in layer 4 of the neocortex.

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Beierlein M; Gibson JR; Connors BW
J. Neurophysiol., 2003

TABLE 2.Frequencies of synaptic connections between neuron pairs



Connection Type	Pairs Recorded	No. of Connections	Percent	No. of Reciprocal Connections Observed	No. of Reciprocal Connections Predicted
RS ↔ RS	89	11	6	1	0
FS → RS	190	83	44	34	32
RS → FS	172	74	43	34	32
RS → LTS	63	36	57	13	13
LTS → RS	74	26	35	13	13

Summary of all cell pairs (intersomatic distance < 50 µm) recorded in this study. All recordings made in the presence of AP5. In some experiments DL-2-amino-5-phosphopentanoic acid (AP5) and 6,7-dinitroquinoxaline-2,3-dione (DNQX) were present, so the excitatory connection could not be tested. The expected numbers of reciprocal connections reflect the product of the sampled incidences of connections in each direction.

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Inferred neuron-electrophysiology data values

Neuron Type	Neuron Description	Ephys Prop	Extracted Value	Standardized Value	Content Source