PSY 200 Lecture Notes - Lecture 1: Parsing, Surface Roughness, Phoneme
Document Summary
Signal is poor - noisy world and speech. Just vowels given = hard to tell what sentence says. Just constants given = easier to tell what sentence says. Physical energy used most is in speaking vowels. Constants alone are just pops and ticks that only make sense when paired with vowels. Perceptual units of speech are larger than a single letter - phonemes (letter paired with vowel) a. Create an ambiguous stimulus (blend sound wave for time and dime together) Again problem at the level of the signal. Take a sound byte and digitally remove a energy section of the word and then mask it with a sound. Then ask ppl to ask what part of the word is gone. >ppl have a hard time to locate exactly what sound is taken out. >brain does not fill in the sound because there is no explainable masking noise. >only works when the noise would have masked the phoneme.
