Subject: checking the acoustical difference From: Daniel Kislyuk <scrofa(at)yandex.ru> Date: Mon, 7 Jun 2004 00:54:57 +0400 X-Mailer:Yamail [ http://yandex.ru ]Dear listers, Could you help me with an advice or some literature references? I’ve 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 won’t be noticed and won’t 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? Thanks! Daniel -------------------------------- Daniel Kislyuk, St.Petersburg State University Russia mail-to: scrofa(at)yandex.ru