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Article: Local circuit properties underlying cortical reorganization.

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Hickmott PW; Merzenich MM
J. Neurophysiol., 2002


Table 3.

Quantification of response parameters in neurons at reorganized border sites

Control Normal Acute 7 Day 14 Day 28 Day
PSP peak amplitude CB, mV 24.1 ± 1.9 (11) 21.5 ± 2.6 (18) 31.3 ± 4.83-b (10) 29.2 ± 4.0 (9) 30.9 ± 4.03-b (15) 30.9 ± 2.13-b (14)
PSP peak amplitude NCB, mV 24.6 ± 1.8 26.6 ± 2.5 36.2 ± 2.33-a 3-b 32.8 ± 2.23-a 31.3 ± 2.43-a 30.9 ± 2.93-a
PSP threshold CB, μA 25.7 ± 4.0 20.3 ± 3.5 29.3 ± 5.6 21.3 ± 2.8 26.5 ± 1.7 29.1 ± 8.7
PSP threshold NCB, μA 25.9 ± 3.7 14.5 ± 3.0 17.8 ± 3.1 15.2 ± 2.9 15.3 ± 2.8 14.6 ± 2.5
PSP latency CB, ms 2.4 ± 0.11 2.6 ± 0.13 2.8 ± 0.31 2.7 ± 0.18 2.5 ± 0.13 2.5 ± 0.11
PSP latency NCB, ms 2.4 ± 0.14 2.6 ± 0.13 2.7 ± 0.27 2.7 ± 0.27 2.6 ± 0.13 2.5 ± 0.09
IPSP peak amplitude CB, mV 4.6 ± 0.33 (11) 6.4 ± 0.53 (9) 7.3 ± 1.03-b (9) 7.7 ± 0.873-b (10) 5.8 ± 0.53 (10)
IPSP peak amplitude NCB, mV 5.3 ± 0.44 8.2 ± 0.433-b 8.9 ± 0.733-b 3-e 6.6 ± 0.80 6.1 ± 0.52
IPSP t1/2 CB, ms 121.3 ± 15.9 112.0 ± 13.2 190.4 ± 23.13-b 3-c 173.9 ± 14.23-c 192.4 ± 17.63-b 3-c
IPSP t1/2 NCB, ms 159.8 ± 17.3 145.4 ± 8.6 195.4 ± 17.8 179.9 ± 15.9 192.6 ± 18.2
IPSP threshold CB, μA 25.3 ± 6.7 37.1 ± 10.2 31.5 ± 5.6 25.2 ± 3.8 31.5 ± 9.8
IPSP threshold NCB, μA 21.7 ± 7.2 27.2 ± 8.5 22.9 ± 4.1 16.1 ± 2.3 19.5 ± 1.7
IPSP latency CB, ms 2.8 ± 0.33 2.6 ± 0.42 2.8 ± 0.18 2.7 ± 0.21 2.9 ± 0.29
IPSP latency NCB, ms 2.7 ± 0.3 2.6 ± 0.30 2.9 ± 0.16 2.7 ± 0.19 2.9 ± 0.29

  • Values are means ± SE with number of neurons in parentheses. Data categories are as in Table 1 and Figs. 5 and6.

  • ↵F3-a  Significantly different from control,P < 0.05.

  • ↵F3-b  Significantly different from normal, P < 0.05.

  • ↵F3-c  Significantly different from acute,P < 0.05.

  • F3-d  Significantly different from 7 day, P < 0.05.

  • ↵F3-e  Significantly different from 14 day,P < 0.05.

  • F3-f  Significantly different from 28 day, P < 0.05.


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Inferred neuron-electrophysiology data values

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