The pleasantness of visual symmetry: always, never or sometimes.

This main effect was qualified by an almost significant interaction, F (1, 15) = 4.41, p = .053, partial η 2 = .227 (see Figure 4 ). t-test results showed that vocal RTs to Positive Words preceded by Symmetric dot-patterns were faster, ( M = 471; SE = 13) than vocal RTs to Negative Words preceded by Symmetric dot-patterns, ( M = 495; SE = 16), t (15) = 4.71 p <.000.

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However, whereas this pattern resulted in a significant difference between vocal RTs to Positive Words when preceded by Symmetric dot-patterns than when they were preceded by Random dot-patterns, t (15) = 2.34 p = .003, the same comparison for Negative Words preceded by Symmetric dot-patterns or by Random dot-patterns did not reach statistical significance, t (15) = 1.10, p = .289.

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