Table 1 Results of the electrical stimulation of the right index fingers of the subjects under conditions of (A) light / eyes closed, (B) light / eyes opened, (C) darkness / eyes closed and (D) darkness / eyes opened.

From: Eye closure enhances dark night perceptions

 

lights on

darkness

   

(A)

(B)

(C)

(D)

   

closed

opened

closed

opened

#

age (years)

sex

mean (mA)

s

mean (mA)

s

mean (mA)

s

mean (mA)

s

1

21

m

2.00

0.11

2.03

0.09

2.01

0.21

2.18

0.05

2

21

m

1.75

0.18

1.98

0.18

1.65

0.13

1.69

0.09

3

22

w

2.01

0.11

2.06

0.09

1.95

0.21

2.13

0.05

4

22

m

1.73

0.18

1.85

0.18

1.66

0.13

1.70

0.09

5

22

w

1.18

0.04

1.15

0.05

1.17

0.06

1.21

0.07

6

23

w

1.84

0.05

1.90

0.02

2.27

0.03

2.32

0.04

7

23

w

1.10

0.01

1.13

0.03

1.13

0.02

1.15

0.03

8

23

w

1.03

0.03

1.08

0.04

1.06

0.05

1.10

0.03

9

23

w

1.17

0.04

1.19

0.05

1.15

0.06

1.18

0.07

10

23

m

1.13

0.03

1.18

0.03

1.14

0.02

1.13

0.04

11

23

w

1.23

0.02

1.20

0.05

1.41

0.03

1.44

0.04

12

23

m

1.12

0.03

1.14

0.03

1.14

0.02

1.10

0.04

13

24

w

1.24

0.02

1.25

0.05

1.40

0.03

1.46

0.04

14

24

w

1.83

0.05

1.92

0.02

2.22

0.03

2.27

0.04

15

26

w

1.04

0.03

1.10

0.04

1.11

0.05

1.14

0.03

16

27

m

1.08

0.01

1.06

0.03

1.16

0.02

1.19

0.03

MW

23.1±1.54

1.41±0.06

1.45±0.06

1.48±0.07

1.52±0.05

 

paired t-test

p ≤ 0.004

p ≤ 0.001

  1. Each value represents the mean value of 5 blocks (5 measurement per block). (s) Standard deviation. A paired two-tailed t-test was performed on the current perception thresholds in mA (last row).