Neural Correlates of Processing Syntax in Music and ... - PubMan
Neural Correlates of Processing Syntax in Music and ... - PubMan
Neural Correlates of Processing Syntax in Music and ... - PubMan
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Experiment III 131<br />
scalp sites. Planned comparisons with user-def<strong>in</strong>ed contrasts were employed. Firstly,<br />
with these contrasts it was <strong>in</strong>vestigated at which ROI the ERAN was significant when<br />
both groups were considered. The ERAN was significant <strong>in</strong> all four ROIs (left-anterior:<br />
F(1,30) = 39.35, p < 0.001; right-anterior: F(1,30) = 52.01, p < 0.001; left-posterior: F(1,30) =<br />
11.16, p = 0.002; right-posterior: F(1,30) = 11.65, p = 0.002) which reflects its relatively<br />
broad distribution. Secondly, it should be determ<strong>in</strong>ed at which ROI the ERAN was<br />
significantly larger <strong>in</strong> the MT group compared to the NM group. Such group difference<br />
was observed <strong>in</strong> the right-anterior ROI (F(1,30) = 4.53, p = 0.042).<br />
Figure 11-2 ERPs from the music (upper panel) <strong>and</strong> the language experiment (bottom panel): The group<br />
means are given <strong>in</strong> separate panels, either left for the musically tra<strong>in</strong>ed children (MT) or<br />
right for the children without musical tra<strong>in</strong><strong>in</strong>g (NM). With<strong>in</strong> each panel the upper rows conta<strong>in</strong><br />
the electrodes from the left-anterior ROI, <strong>and</strong> the bottom rows the electrodes <strong>of</strong> the<br />
right-anterior ROI. Black dotted l<strong>in</strong>es represent the ERP response to the irregular chords (<strong>in</strong><br />
the music experiment) or to the syntactically <strong>in</strong>correct sentences (<strong>in</strong> the language experiment),<br />
black solid l<strong>in</strong>es these to the regular chords or to the syntactically correct sentences.<br />
The red solid l<strong>in</strong>es shows the difference <strong>of</strong> these conditions (i.e., between irregular <strong>and</strong> regular<br />
chords or between syntactically <strong>in</strong>correct <strong>and</strong> correct sentences). In the figure present<strong>in</strong>g<br />
the head position <strong>of</strong> the electrodes, electrodes that are conta<strong>in</strong>ed <strong>in</strong> the ROIs, used for statistical<br />
evaluation, are pr<strong>in</strong>ted <strong>in</strong> black.<br />
To <strong>in</strong>vestigate whether an ERAN was present <strong>in</strong> either group, an ANOVA with the<br />
same with<strong>in</strong>-subject factors as above was computed, separately for each group. As expected,<br />
a ma<strong>in</strong> effect <strong>of</strong> syntactic regularity was found <strong>in</strong> both groups (MT: F(1,18) =<br />
27.08, p < 0.001; NM: F(1,12) = 24.99, p < 0.001). In addition, an <strong>in</strong>teraction <strong>of</strong> syntactic<br />
regularity × anterior-posterior distribution was found <strong>in</strong> the MT group (F(1,18) = 26.64, p<br />
< 0.001). This reflects that an ERAN was elicited <strong>in</strong> both groups, which had a higher<br />
amplitude at anterior sites <strong>in</strong> the MT group.