Audio-aero tactile integration in speech perception using an open choice paradigm.
Thesis DisciplineSpeech and Language Sciences
Degree GrantorUniversity of Canterbury
Degree NameMasters of Science
Purpose: The purpose of this study was to investigate the influence of AT integration during speech perception measured using an open choice response elicitation.
Methods: 34 untrained native English speakers received puffs of air (aero tactile stimuli) on their neck while simultaneously hearing aspirated or unaspirated English plosives (i.e., /pa/, /ba/, /ka/ and /ga/). These monosyllables were presented in congruent and incongruent stimulus conditions at different SNRs, following an adaptive staircase to get 80% accuracy. Participant responses for the monosyllabic identification task was recorded by asking them to type down the syllable they heard.
Results: Air puffs did not have a statistically significant influence on SNR 80% accuracy thresholds. However, there was a significant effect of both place of articulation and the interaction of place and manner of articulation. Conclusion: The study found no evidence of benefit from aero tactile stimuli on speech perception in open choice tasks. However, the results suggest a place and manner dependency in speech perception, as demonstrated in previous studies.