Table 3 Stimulation effects on accuracy/standard deviation of reaction time in RTI

From: Endogenous dopamine release under transcranial direct-current stimulation governs enhanced attention: a study with positron emission tomography

Variable

Coeff.

SE

z

P > z

95% CI

Accuracy scale

Stimulation (tDCS = 1/Sham = 0)

0.87

0.33

2.57

0.01

0.20–1.52

Age

−0.81

0.15

−5.48

<0.001

−1.11–0.52

Stimulation × age

0.78

0.18

4.41

<0.001

0.43–1.12

Standard deviation of reaction time

Stimulation (tDCS = 1/Sham = 0)

−7.00

4.04

−1.72

0.086

−14.9–0.97

Age

−3.94

2.25

−1.75

0.081

−8.36–0.48

Stimulation × age

2.55

2.23

1.15

0.252

−1.81–6.93

  1. Coeff., regression coefficient; SE, standard error; CI, confidence interval; tDCS, transcranial direct-current stimulation
  2. Age is centered at its mean (i.e., means were subtracted from all scores)
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