Table 1 Data Set and Summary of Responses.

From: Simultaneous electrophysiological and morphological assessment of functional damage to neural networks in vitro after 30–300 g impacts

EXP #

 

PHASE

PHASE 2

Plateau 1

Plateau 2

Plateau 3

age (div)

peak g

#of Imp

toal g

#of units

unit loss

% loss

% dec from ref

durat (min)

% dec from ref

durat (min)

time to Pl 3

% dec from ref

ER05

23

250

1

250

35

0

0

−14%

12

−8%

>50

nm

nm

ER09

22

50

1

50

49

0

0

−11%

4

−8%

10

nm

nm

ER10

23

250

5

1250

48

18

30

−34%

14

−20%

60

17 h

−50%

ER12

30

200

5

1000

100

0

0

−28%

8

−17%

>40

nm

nm

ER18

46

250

1

250

43

0

0

−15%

6

−5%

35

nm

nm

ER21

49

200

3

600

11

0

0

−17%

6

−5%

60

nm

nm

ER24

31

200

5

1000

45

0

0

−30%

5

−19%

30

6 h

−69%

ER28

32

100

5

500

29

0

0

−21%

4

−6%

450

9 h

−12%

ER30

88

100

5

500

15

4

27

−28%

5

−14%

100

10 h

−37%

ER39

22

100

5

500

20

1

5

−19%

5

−5%

10

16 h

−38%

ER50

26

250

5

1250

28

0

0

−29%

6

−9%

270

11 h

−15%

ER52

30

250

5

1250

65

1

2

−28%

5

−10%

300

17 h

−32%

  1. div: days in vitro (age of network); peak g: per single impact; # of Im: number of impacts; total g: sum of g exposure at 5–8 sec intervals; # of un.: number of selected template- discriminated waveshapes (representing single neurons); unit loss: number of templates (neurons) lost from data set as logged approximately 10 min after impact. For pl 1, 2, and 3 please refer to Fig. 1; ref: reference activity before impact; time to Pl 3: time between impact and the formation of a level activity plateau 3; nm: not measured (termination of experiment or use for a second impact episode).