Reijo Johansson

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OBJECTIVE Tinnitus is known to have an association with depression and other psychiatric disorders. As part of a larger epidemiological survey, we evaluated the associations among tinnitus, depression and alexithymia in a group of elderly people. METHODS A survey of hearing loss, audiological rehabilitation and associated morbidity in a senior population(More)
CONCLUSION Plasticity of auditory pitch discrimination driven by cochlear implant (CI) use uring a 2.5-year follow-up was indicated by an enhancement of the amplitude of mismatch negativity (MMN) event-related brain potential (ERP) to pure tone frequency changes. OBJECTIVES To follow up changes in MMN elicited to frequency and duration changes in tones(More)
BACKGROUND Preterm and low-birth-weight infants have an increased risk of sensorineural hearing loss. Brainstem auditory-evoked potentials (BAEP) are an effective method to detect subtle deficits in impulse conduction in the auditory pathway. Abnormalities on diffusion tensor imaging (DTI) have been shown to be associated with perinatal white-matter injury(More)
Speech-discrimination performance and the mismatch negativity (MMN) response elicited by vowel changes were used to track vowel-perception improvement of 5 adult cochlear-implant (CI) recipients. The MMN was recorded several times during the first 3 years after CI activation. Artefacts, presumably caused by CI, contaminated most of the brain responses until(More)
OBJECTIVE Repetitive transcranial magnetic stimulation (rTMS) has shown potential in reducing tinnitus symptoms. We evaluated effects of electric field (E-field) navigated rTMS targeted neuroanatomically according to tinnitus pitch. DESIGN In this open methodological pilot study, the patients received E-field navigated 1-Hz rTMS in daily treatment(More)
BACKGROUND Usher syndrome Type 3 (USH3) is an autosomal recessive disorder characterized by variable type and degree of progressive sensorineural hearing loss and retinitis pigmentosa. Cochlear implants are widely used among these patients. OBJECTIVES To evaluate the results and benefits of cochlear implantation in patients with USH3. STUDY DESIGN A(More)
For this study, we examined the perception and production of vowels by postlingually deafened patients with cochlear implant. Four patients and one normally hearing subject produced typical vowel sounds of Finnish by using a speech synthesizer. Also acoustic analyses of the pronounced vowels were made. The first (F1) and the second (F2) formant frequencies(More)
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