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In-Depth Information
Further analysis by Pairwise Comparisons showed that RTs to the unattended an-
gry expression is higher than unattended neutral expression (Diff. = 21.844ms, mar-
ginal significant
P
=0.053). So does RTs of happy expressions (Diff. = 34.792 ms,
P
< 0.05).
Paried T-test was carried out on the RTs of angry, happy, and neutral expressions,
respectively. Results showed that the reaction to the emotional expressions varied
indistinctively with the attention, but distinctively to the neutral expression (
t
1, 13
=
3.474,
P
<0.01). RTs of neutral expressions became much slower when the stimuli
showed up on the unattended side. But for angry and happy expressions, the reaction
changes from attended to unattended location were not significant.
3.2 Accuracy
The overall performance was high. (Mean
Accuracy
= 82.60%). The accuracy among all
the conditions was above 80% except the responds to the unattended neutral expres-
sion (79.76%). See Figure 2.
Fig. 2.
The accuracies of responds to the expressions with different emotion valences under
attend/unattended conditions
Neither the main effect of emotion nor spatial attention is significant at the aspect
of accuracy (Emotion
F
2, 26
= .420; Attention
F
1, 13
= .292). Also, there is no interac-
tion between the emotion and attention (
F
2, 26
= .478).
The accuracies of the emotional expressions are the same under the spatial attended
condition and the unattended condition. There is a slight difference between the re-
sponds to neutral expression under the two attended conditions but didn't reach the
significance.
