Table 3

Test protocol for recording auditory brainstem responses and late latency responses

Parameter
Auditory brainstem responses
Late latency responses

Stimuli
Clicks
Clicks
Stimulus intensity
70 dBnHL
70 dBnHL
Transducer
TDH 39P headphones
TDH 39P headphones
Repetition rate
11.1/s
1.1/s
Stimulus polarity
Rarefaction
Rarefaction
Number of sweeps
1500
500
Filter setting
30–3000 Hz
1–30 Hz
Analysis window
-10 ms to +25 ms
-50 ms to +350 ms
Electrode montage
Vertical montage
Positive – Cz
Negative – M1, M2
Ground – Nasion
Vertical montage
Positive – Cz,
Negative – M1/M2
Ground – Nasion
Electrode impedance
< 5 kOhms
< 5 kOhms

Maruthy and Mannarukrishnaiah Behavioral and Brain Functions 2008 4:17   doi:10.1186/1744-9081-4-17