Electrophysiological Evidence for Sentence Comprehension - Wings
Electrophysiological Evidence for Sentence Comprehension - Wings
Electrophysiological Evidence for Sentence Comprehension - Wings
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calculated by subtracting the non-condition from the condition image thus keeping the<br />
polarity of the result unchanged.<br />
Subject:<br />
EEG file: substraction.avg Recorded : 12:50:35 08-Apr-2006<br />
Rate - 1000 Hz, HPF - 0.1 Hz, LPF - 50 Hz, Notch - 50 Hz<br />
Neuroscan<br />
SCAN 4.3<br />
Printed : 11:03:30 14-Aug-2006<br />
+4.5<br />
00:00:00.-100+24 ms 24/48 ms 48/72 ms 72/96 ms 96/120 ms 120/144 ms 144/168 ms 168/192 ms 192/216 ms<br />
216/240 ms 240/264 ms 264/288 ms 288/312 ms 312/336 ms 336/360 ms 360/384 ms 384/408 ms 408/432 ms +1.5<br />
-0.8<br />
432/456 ms 456/480 ms 480/504 ms 504/528 ms 528/552 ms 552/576 ms 576/600 ms 600/624 ms 624/648 ms<br />
648/672 ms 672/696 ms 696/720 ms 720/744 ms 744/768 ms 768/792 ms 792/816 ms 816/840 ms 840/864 ms<br />
-3.8<br />
-6.0<br />
864/888 ms 888/912 ms 912/936 ms 936/960 ms 960/984 ms 984/1008 ms 1008/1032 ms 1032/1056 ms 1056/1080 ms<br />
Figure 19. The difference between the conditions in the ‘case’ experiment<br />
The scalp distribution images show the negative wave starting around 400 ms at the left<br />
anterior electrode sites and lasting to around 500 ms at the anterior electrode sites. It is<br />
followed by a positive wave over central and parietal regions starting at around 550 ms<br />
and lasting till the end of the epoch (1000 ms). This distribution with parietal maximum<br />
is typical <strong>for</strong> P600 or ‘syntax positive shift’ (SPS) (Hagoort et al., 2000). However, as<br />
they report:<br />
P600/SPS has a fairly equal scalp distribution, whereas the second phase (750-100<br />
ms) shows a clear parietal maximum (p. 293).<br />
+6.0<br />
+5.3<br />
+3.8<br />
+3.0<br />
+2.3<br />
+0.8<br />
0<br />
-1.5<br />
-2.3<br />
-3.0<br />
-4.5<br />
-5.3<br />
92