Describe what subliminal perception is and explain how the experiment discussed by the professor illustrates this phenomenon.
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.
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on vocabulary words:
No of characters: 603.0 592.248995984 102% => OK
No of words: 158.0 155.574297189 102% => OK
Chars per words: 3.8164556962 3.80514564318 100% => OK
Fourth root words length: 3.54539209256 3.525876923 101% => OK
Word Length SD: 1.82749260192 1.79077849142 102% => OK
Unique words: 98.0 93.7148594378 105% => OK
Unique words percentage: 0.620253164557 0.604071249207 103% => OK
Syllable count: 191.7 185.844578313 103% => OK
Avg_syllables_per_word: 1.2 1.19417670683 100% => OK
Performance on coherence:
Topic speech coherence ratio: 0.0116714792731 0.0650381309087 18% => It may have issues on recording quality or the content is not so closely related to content.
Acoustic performance on paragraphs:
How many acoustic paragraphs: 1.0 4.35341365462 23% => Need more acoustic paragraphs.
Average paragraph length: 158.0 68.503853103 231% => The average paragraph length is high.
STD paragraph length: 0.0 21.3332995233 0% => OK
Average paragraph duration: 59.44 25.9943957902 229% => 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: 30.0 42.0642570281 71% => OK
Average acoustic sentence length: 5.26666666667 4.02192344571 131% => OK
STD acoustic sentence length: 4.35073429307 3.1217529195 139% => OK
Average acoustic sentences duration: 1.94433333333 1.45093177766 134% => OK
STD acoustic sentences duration: 1.2294841285 0.99851816184 123% => OK
Acoustic performance on acoustic silence:(An acoustic silence means a little pause between two or more words)
How many acoustic silence: 30.0 39.0421686747 77% => OK
Total acoustic silence duration: 7.78 7.12997991968 109% => OK
Average acoustic silence duration: 0.259333333333 0.185688545393 140% => Maybe the pauses are too long.
STD acoustic silence duration: 0.190559410392 0.155154303396 123% => OK
Acoustic performance on acoustic words:
Total word duration: 48.01 47.1480722892 102% => OK
Average word duration: 0.303860759494 0.305395592593 99% => OK
STD word duration: 0.185051223437 0.189427763521 98% => OK
Disfluencies: like hesitations, or 'ehn' or taking a long time to pronounce a word:
How many disfluencies: 11.0 7.94979919679 138% => It may have 'ehn' in the speaking, or it has hesitations or overlapping speeches.
Total_disfluencies_duration: 8.32 6.2937751004 132% => Somehow the hesitation is serious.
Total acoustic noise duration: 1.73 3.39508032129 51% => OK
Acoustic rates:
Total speech duration: 59.44 59.7592369478 99% => OK
Compare to expected duration: 0.990666666667 0.995987282463 99% => OK
Rate of silence: 0.504710632571 0.656000678711 77% => OK
Rate of speech: 2.65814266487 2.60215298798 102% => OK
Rate of speech by unique words: 1.64872139973 1.56821927147 105% => OK
Rate of word duration by unique words: 2.04124140804 1.99336655568 102% => OK
Average articulation rates: 0.235727708861 0.317803793328 74% => OK
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Rates: 70.0 out of 100
Scores by speech e-grader: 21.0 Out of 30
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Note: the speech e-grader does NOT examine the meaning of words and ideas.