Subliminal Perception
Humans are constantly perceiving visual and auditory stimuli. Sometimes our perception of these stimuli occurs consciously: we are aware of a stimulus and know that we are perceiving it. But our perception of a stimulus can also occur without our awareness: an image might appear and disappear before our eyes too quickly for us to notice that we saw it, or a sound might be too faint for us to realize that we heard it. This phenomenon—the perception of a stimulus just below the threshold of conscious awareness—is called subliminal perception. Experiments have shown that subliminally perceived stimuli can influence people's thoughts and attitudes.
1. Consider this experiment.
2. Two groups of people were asked to watch TV.
3. And while they were watching, a picture flashed on the screen, less than a second, very quickly so it was barely noticeable.
4. The picture was a boy with a birthday cake.
5. Now like I said, there were two groups, and each group saw a slightly different version of the picture.
6. One group got the boy looking angry.
7. In fact he was actually throwing the cake on the floor.
8. The other group got a picture of the boy smiling, happy, holding out the cake like he was offering it.
9. Same boy, same cake, but different emotions expressed in each picture.
10. Everyone was then asked to look at a different image.
11. Now this is a third image, right?
12. Again it's the boy and the cake, but this time the image stayed on the screen.
13. In this picture, the boy is just holding the cake, basically no emotion on his face, everything very neutral.
14. Now remember, nobody knew they'd already seen a picture of this boy.
15. After a minute, everyone was asked to describe the boy's personality.
16. Those who'd been exposed to the image of the angry boy, they generally described the boy's personality negatively.
17. Those who'd earlier seen the happy boy described him, well, positively.
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on vocabulary words:
No of characters: 669.0 592.248995984 113% => OK
No of words: 182.0 155.574297189 117% => OK
Chars per words: 3.67582417582 3.80514564318 97% => OK
Fourth root words length: 3.67297393991 3.525876923 104% => OK
Word Length SD: 1.7191130258 1.79077849142 96% => OK
Unique words: 107.0 93.7148594378 114% => OK
Unique words percentage: 0.587912087912 0.604071249207 97% => OK
Syllable count: 216.0 185.844578313 116% => OK
Avg_syllables_per_word: 1.2 1.19417670683 100% => OK
Performance on coherence:
Topic speech coherence ratio: 0.0393060655607 0.0650381309087 60% => OK
Acoustic performance on paragraphs:
How many acoustic paragraphs: 1.0 4.35341365462 23% => Need more acoustic paragraphs.
Average paragraph length: 182.0 68.503853103 266% => The average paragraph length is high.
STD paragraph length: 0.0 21.3332995233 0% => OK
Average paragraph duration: 59.92 25.9943957902 231% => Need to control the rhythm of the speech
STD paragraph duration: 0.0 7.84667146824 0% => The duration of acoustic paragraphs keeps same.
Acoustic performance on sentences:
How many acoustic sentences: 47.0 42.0642570281 112% => OK
Average acoustic sentence length: 3.87234042553 4.02192344571 96% => OK
STD acoustic sentence length: 2.97948318578 3.1217529195 95% => OK
Average acoustic sentences duration: 1.21531914894 1.45093177766 84% => OK
STD acoustic sentences duration: 0.764718975121 0.99851816184 77% => OK
Acoustic performance on acoustic silence:(An acoustic silence means a little pause between two or more words)
How many acoustic silence: 48.0 39.0421686747 123% => It means the content is not pronounced smoothly or it is pronounced slowly. It is word by word.
Total acoustic silence duration: 10.24 7.12997991968 144% => It may have a lot of silences or every silence is too long.
Average acoustic silence duration: 0.213333333333 0.185688545393 115% => OK
STD acoustic silence duration: 0.217756872579 0.155154303396 140% => OK
Acoustic performance on acoustic words:
Total word duration: 45.2 47.1480722892 96% => OK
Average word duration: 0.248351648352 0.305395592593 81% => OK
STD word duration: 0.140315685966 0.189427763521 74% => OK
Disfluencies: like hesitations, or 'ehn' or taking a long time to pronounce a word:
How many disfluencies: 5.0 7.94979919679 63% => OK
Total_disfluencies_duration: 3.48 6.2937751004 55% => OK
Total acoustic noise duration: 2.13 3.39508032129 63% => OK
Acoustic rates:
Total speech duration: 59.92 59.7592369478 100% => OK
Compare to expected duration: 0.998666666667 0.995987282463 100% => OK
Rate of silence: 0.801068090788 0.656000678711 122% => Less acoustic silences wanted.
Rate of speech: 3.03738317757 2.60215298798 117% => OK
Rate of speech by unique words: 1.78571428571 1.56821927147 114% => OK
Rate of word duration by unique words: 2.36725663717 1.99336655568 119% => OK
Average articulation rates: 0.232656697802 0.317803793328 73% => OK
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It may have duplicated content. Need to use the words more efficiently.
Rates: 83.3333333333 out of 100
Scores by speech e-grader: 25.0 Out of 30
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Note: the speech e-grader does NOT examine the meaning of words and ideas.