Skip to main content
. 2014 May 28;9(5):e97467. doi: 10.1371/journal.pone.0097467

Figure 4. ERP responses for S2, S3 and S4 for musicians (N = 14, left) and non-musicians (N = 15, right).

Figure 4

The panels labeled S2, S3 and S4 show the group averaged ERPs for electrode FCz elicited by omissions in the standards, the corresponding position in S1, the derived difference waves and the scalp distributions of the difference waves. The panel labeled All shows all difference waves combined. Time 0 is the onset of the omission, or, in the case of S1, the onset of the corresponding sound. The omissions in S2, S3 and S4 were equally rare in occurrence (0.225) and in all cases, a hi-hat sound was omitted. For clarity, here we add the difference wave for D3 (see Figure?3for the separate ERPs) to make a comparison with the difference waves derived for the standards possible. The omissions in D3 were in equally weak metrical positions as in S2, S3 and S4.