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. 2016 Sep 6;11(9):e0161589. doi: 10.1371/journal.pone.0161589

Table 1. Description of audiovisual stimuli.

Means and standard deviations are shown.

Description Affective Category F-test
Negative Valence, High Arousal Negative Valence, Low Arousal Positive Valence, High Arousal Positive Valence, Low Arousal Valence Arousal
Valence -0.92 (0.24) -0.83 (0.25) 0.78 (0.16) 0.96 (0.16) F(1,28) = 583.87*** ns.
Arousal 0.37 (0.11) -0.24 (0.27) 0.25 (0.18) -0.38 (0.29) ns. F(1,28) = 62.17***
Hue 0.35 (0.12) 0.26 (0.11) 0.41 (0.18) 0.34 (0.24) ns. ns.
Saturation 0.25 (0.08) 0.27 (0.16) 0.33 (0.16) 0.35 (0.18) ns. ns.
Value (Brightness) 0.47 (0.09) 0.52 (0.07) 0.60 (0.12) 0.54 (0.14) ns. ns.
Amplitude (dB) (left) 10.00 (3.38) 14.75 (3.26) 13.78 (2.79) 11.85 (2.86) ns. ns.
Amplitude (dB) (right) 10.44 (3.55) 14.76 (3.26) 13.73 (2.80) 11.31 (2.60) ns. ns.
Frequency (Hz) (left) 379.22 (361.05) 241.26 (137.93) 465.58 (697.45) 1161.76 (1441.87) ns. ns.
Frequency (Hz) (right) 454.71 (372.69) 241.66 (137.70) 491.21 (687.18) 1170.00 (1435.29) ns. ns.
Motion 1 (slow and drifting) 122108.01 (54831.82) 36616.89 (34589.29) 91659.27 (44101.18) 32263.66 (31748.91) ns. F(1,28) = 23.469***
Motion 2 53812.82 (22459.94) 17790.62 (14413.37) 43402.15 (20830.68) 15407.53 (14798.81) ns. F(1,28) = 24.016***
Motion 3 38860.56 (15262.57) 14337.7 (10537.67) 30810.13 (14032) 12256.57 (11724.12) ns. F(1,28) = 21.884***
Motion 4 24938.01 (9014.75) 10388.2 (6386.2) 18924.16 (8638.21) 8335.32 (7803.32) ns. F(1,28) = 19.629***
Motion 5 15024.27 (4520.56) 6986.16 (3533.85) 12377.26 (5407.69) 5579.42 (4900.99) ns. F(1,28) = 20.431***
Motion 6 7305.06 (2337.75) 3863.75 (1697.84) 6830.85 (3381.41) 2720.06 (2723.28) ns. F(1,28) = 16.776***
Motion 7 (fast and transient) 2597.47 (846.05) 1308.79 (695.17) 2668.86 (2197.91) 989.22 (911.23) ns. F(1,28) = 10.275**

Note:

** p < .01

*** p < .001.

Hue, saturation, and value (brightness) were measured on 0 to 1 HSV scale; motion features were measured by the number of pixels of differences between frames.