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Perceptual asymmetries and auditory processing of Estonian quantities

Kask, Liis; Lippus, Pärtel; Põldver, Nele; Kreegipuu, Kairi
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NameSizeDescription
Level ST Falling DEV.zip47.13MbDATA Level ST Falling DEV
Falling ST Level DEV.zip46.98MbDATA Falling ST Level DEV
Short ST Long DEV.zip44.34MbDATA Short ST Long DEV
Long ST Short DEV.zip45.33MbDATA Long ST Short DEV
GAMM_AF3.pdf39.32KbGAMM_AF3
GAMM_AF4.pdf38.61KbGAMM_AF4
GAMM_C3.pdf37.85KbGAMM_C3
GAMM_C4.pdf37.96KbGAMM_C4
gamm_model_summaries_1_1_LongST-ShortDEV_SATA.txt4.366Kb
gamm_model_summaries_1_2_ShortST-LongDEV_SAKI.txt4.347Kb
gamm_model_summaries_2-1_LongST-ShortDEV_SATA.txt4.357Kb
gamm_model_summaries_2-2_LongST-ShortDEV_SAKI.txt4.335Kb
gamm_model_summaries_3-1_LevelST-FallingDEV_SATA.txt4.381Kb
gamm_model_summaries_3-2_LevelST-FallingDEV_SAKI.txt4.325Kb
gamm_model_summaries_4-1_FallingST-LevelDEV_SATA.txt4.346Kb
gamm_model_summaries_4-2_FallingST-LevelDEV_SAKI.txt4.331Kb
gamm_smooth_effects_plots.pdf83.07Kb
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Date
2021
URI
https://datadoi.ee/handle/33/322
https://doi.org/10.23673/re-267
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Abstract
Similar to visual perception, auditory perception also has a clearly described “pop-out” effect, where an element with some extra feature is easier to detect among elements without an extra feature. This phenomenon is better known as auditory perceptual asymmetry. We investigated such asymmetry between shorter or longer duration, and level or falling of pitch, of linguistic stimuli that carry a meaning in one language (Estonian), but not in another (Russian). For the mismatch negativity (MMN) exxperiment, we created four different types of stimuli by modifying the duration of the first vowel [ɑ] (170, 290 ms) and pitch contour (level vs. falling pitch) of the stimuli words (‘SATA’, ‘SAKI’). The stimuli were synthesized from Estonian words (‘SATA’, ‘SAKI’) and follow the Estonian language three-way quantity system, which incorporates tonal features (falling pitch contour) together with temporal patterns. This made the meaning of the word dependent on the combination of both features and allows us to compare the relative contribution of duration and pitch contour in discrimination of language stimuli in the brain via MMN generation. The participants of the experiment were 12 Russian native speakers with little or no experience in Estonian and living in Estonia short-term, and 12 Estonian native speakers (age 18-27 years). We found that participants’ perception of the linguistic stimuli differed according to their native language, confirming that the meaning of the word interferes with the early automatic processing of phonological features and thus illustrating the effect of language background on language perception and also on auditory asymmetry. The GAMM and ANOVA analysis of the reversed design results showed that the deviant with longer duration among shorter standards elicited a MMN response with greater amplitude than the short deviant among long standards, while changes in pitch contour (falling vs. level pitch) produced neither strong MMN or asymmetry. Our results align with those of previous studies (Jaramillo et al., 2000), and contribute to the growing body of knowledge supporting auditory perceptual asymmetry....  Show more  Show less
Keyword
auditory perceptional asymmetry; mismatch negativity; speech perception; duration change; pitch change; quantity stimuli; language processing; underspecification
Item type
info:eu-repo/semantics/dataset
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