Table 2 Distribution of melodic structure and articulatory activity (ART) in vocalisations by hearing impaired and normal hearing groups.
From: Melodic and articulatory development is delayed in deaf infants aged 2–4 months
Hearing impaired (HI) | Normal hearing (NH) | Total | |||||
|---|---|---|---|---|---|---|---|
n | (%) | n | (%) | n | (%) | ||
Melodic structure (laryngeal activity with or without ART) | |||||||
Simple | 760 | (65.5) | 460 | (39.7) | 1,220 | (52.6) | |
Complex | 400 | (34.5) | 700 | (60.3) | 1,100 | (47.4) | |
Articulatory activity (with either simple or complex melody) | |||||||
No | 830 | (71.6) | 546 | (47.1) | 1,376 | (59.3) | |
Yes | 330 | (28.4) | 614 | (52.9) | 944 | (40.7) | |
Melodic structure and articulatory activity | |||||||
Otherwise | 970 | (83.6) | 684 | (59.0) | 1,654 | (71.3) | |
Both* | 190 | (16.4) | 476 | (41.0) | 666 | (28.7) | |
