Özet:

Introduction: To determine normal values of the latencies and amplitudes of auditory late latency responses for older adults and to investigate whether there was any difference between individuals in terms of the ear tested and gender. Materials and Method: A total of 31 older adults (17 females and 14 males) between age of 65 to 85 years old participated. All were right-handed with normal hearing (pure-tone average ? 25 decibels). The auditory late latency responses test was performed with 1 kilohertz tone burst stimuli at 70 dB normal hearing level. The mean latencies and amplitudes of the P1, N1, P2 and N2 waves were recorded. Gender and tested-ear effects were investigated. Results: The mean latencies of the N1 and P2 waves in males were longer than in females for the right ears (p < 0.05). The mean latencies of the N1 and N2 waves were also longer in males than in females for the left ears (p < 0.05). In addition, the mean amplitudes of the P1- N1 and N1-P2 waves were smaller in males than in females for the left ears (p < 0.05). Conclusion: This study has revealed normative values for auditory late latency responses in healthy older adults. The data belonging to the right and left ears have been provided. Furthermore, a difference has been observed between the genders in terms of latency (right N1 and P2; left N1 and N2) and amplitude (left P1- N1- and N1-P2) values.

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