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  • Study of acute and sub-acute effects of auditory training on the central auditory processing in older adults with hearing loss-a pilot study
    Publication . Silva, Carla Matos, 1975-; Fernandes, Carolina; Rocha, Clara; Pereira, Telmo
    Background: Impairment in speech perception is a common feature of older adults. This study aimed at evaluating the acute and sub-acute (after three months) effects of auditory training on central auditory processing in older people with hearing loss. Methods: A nonrandomized study was conducted enrolling 15 older adults with hearing loss and an average age of 78.6 +- 10.9 years. All participants underwent a baseline otoscopy, tympanogram, audiogram and speech-in-noise test with a signal-noise ratio (SNR) of 10 and 15 dB. Afterwards, auditory training intervention was implemented consisting of 10 training sessions over 5 weeks. Participants were divided into two groups: group 1 (G1) underwent auditory training based on a speech-in-noise test; group 2 (G2) underwent a filtered-speech test. Auditory processing was evaluated at baseline (T0) immediately after the intervention (T1) and 3 months after the intervention (T2). Results: Group 1 were quite efficient regardless of the SNR in the right ear with statistically significant differences from T0 to T1 (p = 0.003 and p = 0.006 for 10 dB and 15 dB, respectively) and T0 to T2 (p = 0.011 and 0.015 for 10 dB and 15 dB, respectively). As for the left ear, the increase of success was statistically significant for the SNR of 10 dB and 15 dB from T0 to T1 (p = 0.001 and p = 0.014, respectively) and from T0 to T2 (p = 0.016 and p = 0.003). In G2, there was a significant variation only from T0 for T1 in the left ear for an SNR of 10 dB (p = 0.001). Conclusion: Speech perception in noise significantly improved after auditory training in old adults.
  • Benefits of auditory training on elderly people with hearing loss
    Publication . Fernandes, Carolina; Silva, Carla Matos, 1975-; Rocha, Clara
  • Study of hearing processing in seniors before and after hearing training
    Publication . Fernandes, Carolina; Prata, Cláudia; Alves, Ana Rita; Rocha, Clara; Silva, Carla Matos, 1975-
    Introduction: The Central Auditory Processing (CAP) corresponds to the perception of the hearing information in the Central Nervous System and to the neurobiological activity involved and is carried out through a set of stages characterized by specific abilities on which the person depends to interpret what he hears. With aging, alterations at the level of perception and detection of the sound in the central and peripheral system occur and have effects on the senior’s communication process. The hearing process permits to minimize the difficulties in the information processing and to enhance the identification and discrimination of sound patterns. This study aims at evaluating the effect of hearing training on the seniors speaking comprehension skills. Methods: The sample consists of 16 people, aged from 58 to 91. All the people have undergone an otoscopy, a tympanogram, a pure tone audiogram screening and the speech in noise test. The people who presented otoscopy without alterations and tympanogram Type A have been included in the study. After the initial evaluation, all the people have undergone a hearing training programme of 10 sessions during 5 weeks, where 8 have undergone the speech in noise test (G1) and 8 have undergone the training with a filtered speech test (G2). Results: Comparing the results obtained before and after the hearing training, we can verify statistically significant differences in the speech in noise test in all the conditions of the test (relation signal/noise10dB, 15 dB and total) in both ears (p<0,05). As far as the training type is concerned, the G1 reveals statistically significant differences in all the conditions of the test (p<0,01). As far as the G2, only statistically significant differences are observed in the left ear in the condition signal/noise 10dB (p=0,006). Conclusion: The hearing training revealed improvement in the hearing processing abilities, namely in the discrimination of speaking in noisy ambiance in seniors.