[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
checking the acoustical difference
Could you help me with an advice or some literature references?
Iíve two CV syllables, namely /ba/ and /va/, that are clearly perceived and elicit mismatch negativity in ERPs, when used in the odd-ball paradigm. I want to prove that the MMN that I observe is of the phonetic origin while the acoustic difference is so faint, that it wonít be noticed and wonít elicit MMN in a non-speech context.
What kind of approach would you consider to be more reasonable and why?
- take first 25 ms of the stimuli (the part where they do differ) and attach them to the same vowel-like complex tone.
- reverse stimuli spectra around certain frequency (say, 2kHz) and present participants with the resynthesized sounds
- something else?
St.Petersburg State University