. 2013 Dec 3;7:231. doi: 10.3389/fnins.2013.00231

Table 1.

Mean amplitudes (μV, standard errors of the mean in parentheses) calculated from difference waveforms (see Figure 4) for the early-Nd and late-Nd effects of auditory attention on ERPs to spoken left-ear and right-ear syllables during phonological and non-phonological tasks at Cz electrode at different time windows from syllable onset.

Time window	Task
	Phonological task		Non-phonological task
	Left-ear syllables	Right-ear syllables	Left-ear syllables	Right-ear syllables
EARLY Nd
50–100 ms^a	ns	ns	ns	−0.5 (0.1)^***
100–150 ms^a	−0.4 (0.2)^**	ns	−0.5 (0.1)^***	−0.7 (0.1)^***
150–200 ms^a	−0.7 (0.2)^***	−0.8 (0.2)^***	−0.9 (0.1)^***	−0.8 (0.1)^***
200–250 ms^a	−0.7 (0.2)^***	ns	−0.7 (0.2)^**	−0.5 (0.2)^**
250–300 ms^a	−0.6 (0.2)^**	ns	ns	ns
LATE Nd
300–400 ms^b	−1.1 (0.2)^***	−1.5 (0.3)^***	−1.0 (0.2)^***	−1.0 (0.2)^***
400–500 ms^b	−1.5 (0.2)^***	−1.6 (0.2)^***	−0.9 (0.2)^***	−1.0 (0.2)^***
500–600 ms^b	−1.3 (0.2)^***	−1.5 (0.2)^***	−1.1 (0.1)^***	−1.0 (0.2)^***
600–700 ms^b	−1.0 (0.2)^***	−1.0 (0.1)^***	−1.0 (0.1)^***	−0.7 (0.1)^***

Significance from one-sided t-tests Bonferroni corrected for t-tests at the five early-Nd latency windows.

Significance from one-sided t-tests Bonferroni corrected for t-tests at the four late-Nd latency windows;

^***

p < 0.001,

^**

p < 0.01, ns, non-significant. Time windows written in bold font were analyzed further with ANOVAs.