Conveying a message through noise: A study on speech, gesture and multimodal productions in noisy environments
We investigate to what extent different noise levels influence the productions of speech and gestures, and what differences can be found in the different communicative attempts. An experiment was conducted in which twenty Dutch action verbs were conveyed in three noise conditions: either no noise, 4-talker babble noise or 8-talker babble noise. The results showed that the change in noise level had no significant influence on the production of gestures, nor on the production of speech. Comparing the first and second attempt, irrespective of noise level, the results showed that there was a significant change between the two communicative attempts only for the variables strokes, change in referent and change in hand: strokes were produced more often in the second attempt as compared to the first, the other two variables were produced less often. Noise level thus did not significantly influence the production of gestures, the number of attempts did.
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