Figure 4 | Scientific Reports

Figure 4

From: Arithmetic Skill May Refine the Performance of Individuals with High Math Anxiety, Especially in the Calculation Task: An ERP Study

Figure 4

Grand-average waveforms at the C3 and Pz sites, and scalp topographies and source localization of group difference in the calculation task. Left: N1 Difference for the HAS&HMA group and the LAS&HMA group at the C3 electrode. As suggested, in the HMA group, HAS individuals had a more positive amplitude than their LAS peers. The difference was the amplitude of HAS&HMA minus that of LAS&HMA. The sLORETA analysis of P2 suggested that among HMA in the calculation task, enhanced activation in the right SPL, IPL, and precuneus of the right parietal lobe was observed in HAS. Right: Difference waveform for P3b between the HMA group and LMA group. As suggested, compared with the HMA group, amplitudes of the LMA group were more positive. The difference was obtained by amplitudes of the HMA group minus those of the LMA group. The sLORETA analysis of P3b revealed that HMA led to a significantly enhanced activation in the left supramaginal gyrus, IPL, and precentral gyrus, and decreased activation in the right SPL and IPL. (a) Group difference of AS in P2 amplitude for HMA individuals. (b) P3b difference of MA. Additionally, the scalp topography of the P2 and P3b components shows the interference effect in the 150–250 and 250–500 ms window respectively. *p < 0.05; ~p < 0.1.

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