Table 1.

Means and standard deviations (SD) of onset and peaktime latencies of conditioned (CRs) and unconditioned eyeblink responses (URs) in paired trials, unpaired trials in each experiment and conditioned stimulus (CS) only trials on the first (D1) and second day (D2) in Experiment 3 in the three stimulation modalities.

	Anodal	Cathodal	Sham
Experiment 1
CR onset	−131.1 ± 26.2	−142.0 ± 32.2	−143.6 ± 28.5
CR peaktime	−97.3 ± 29.9	−104.4 ± 28.8	−113.1 ± 31.2
UR onset	45.4 ± 04.5	44.4 ± 05.7	42.3 ± 04.7
UR peaktime	95.9 ± 14.8	100.5 ± 11.4	81.5 ± 31.8
UR onset*	44.4 ± 05.2	43.1 ± 04.9	43.6 ± 04.2
UR peaktime*	85.1 ± 06.6	87.6 ± 09.8	76.6 ± 27.9
Experiment 2
CR onset	−144.5 ± 34.8	−152.0 ± 32.4	−131.1 ± 20.9
CR peaktime	−126.4 ± 34.7	−133.3 ± 27.0	−113.1 ± 23.3
UR onset	42.8 ± 03.5	42.9 ± 07.1	42.2 ± 04.6
UR peaktime	90.1 ± 12.4	92.8 ± 11.6	87.2 ± 07.4
UR onset*	44.2 ± 04.1	42.3 ± 03.3	41.8 ± 05.3
UR peaktime*	77.2 ± 06.3	79.7 ± 09.5	85.5 ± 10.5
Experiment 3
CR onset D1 (paired)	−160.9 ± 20.4	−163.9 ± 12.2	−151.7 ± 11.1
CR peaktime D1 (paired)	−140.2 ± 17.5	−142.6 ± 12.7	−128.8 ± 09.9
CR onset D1 (CSonly)	−152.7 ± 31.8	−138.7 ± 24.2	−146.9 ± 32.4
CR peaktime D1 (CSonly)	−128.3 ± 31.5	−111.3 ± 19.2	−117.6 ± 32.7
Exinction onset	−162.0 ± 54.4	−174.1 ± 45.5	−178.3 ± 33.3
Extinction peaktime	−110.1 ± 54.0	−130.7 ± 55.1	−130.3 ± 32.7
CR onset D2 (paired)	−155.4 ± 30.7	−145.7 ± 35.9	−143.4 ± 29.1
CR peaktime D2 (paired)	−125.4 ± 26.4	−115.0 ± 36.8	−112.4 ± 25.3
CR onset D2 (CSonly)	−153.3 ± 40.2	−140.4 ± 49.7	−162.1 ± 41.0
CR peaktime D2 (CSonly)	−122.5 ± 39.8	−109.2 ± 46.1	−133.3 ± 40.4
UR onset	38.1 ± 05.5	70.2 ± 95.0	39.2 ± 07.6
UR peaktime	93.9 ± 13.6	125.1 ± 91.7	103.0 ± 18.2

Note that (negative) values for CR onset and peaktime latencies refer to the time prior to the onset of the US (air puff), set as 0 ms. The number of included subjects varies because of missing CRs in individual blocks. *Indicates URs in the second half of the pseudoconditioning phase with tDCS.