Maturation Of Audiotory Response - Interacoustics PA5 Gebrauchsanweisung

3.4
Maturation of auditory response
1 Minimum response level, dB HL. The MRL levels are recorded in sound cabins. In noisy surroundings the levels will have to be
correspondingly higher.
PA5 Instructions for Use - EN
New-born to 2 months of age
Arousal from sleep. MRL
MRL in noisy surroundings: 90 d 3-4 months of age
Rudimentary head turn, horizontally.
MRL: 50-60 dB.
4-7 months of age
Sound localisation to the side only, not above or below eye level.
MRL: 40-50 dB.
7-9 months of age
Sound localisation to the side and Indirect below. (Not above).
MRL: 30-40 dB.
9-13 months of age
Sound localisation to the side and direct below.
MRL: 25-35 dB.
in quiet surroundings 50-70 dB.
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