Publications by authors named "Yolanda Penaloza-Lopez"
Objective: To evaluate the central auditory processing disorders in patients with multiple sclerosis, emphasizing auditory laterality by applying psychoacoustic tests and to identify their relationship with the Multiple Sclerosis Disability Scale (EDSS) functions.
Method: Depression scales (HADS), EDSS, and 9 psychoacoustic tests to study CAPD were applied to 26 individuals with multiple sclerosis and 26 controls. Correlation tests were performed between the EDSS and psychoacoustic tests.
Objective: Dyslexia is the difficulty of children in learning to read and write as results of neurological deficiencies. The objective was to test the Phonological awareness (PA) and Sinusoidal amplitude modulation (SAM) threshold in children with Phonological dyslexia (PD).
Methods: We performed a case-control, analytic, cross sectional study.
Objective: Compare if localization of sounds and words discrimination in reverberant environment is different between children with dyslexia and controls.
Method: We studied 30 children with dyslexia and 30 controls. Sound and word localization and discrimination was studied in five angles from left to right auditory fields (-90o, -45o, 0o, +45o, +90o), under reverberant and no-reverberant conditions; correct answers were compared.
Objective: We hypothesized that if the right hemisphere auditory processing abilities can be altered in children with developmental dyslexia (DD), we can detect dysfunction using specific tests.
Method: We performed an analytical comparative cross-sectional study. We studied 20 right-handed children with DD and 20 healthy right-handed control subjects (CS).
Introduction And Objectives: Hyperhomocysteinemia as a risk factor for hearing impairment, neuronal damage and cognitive impairment in elderly patients is controversial and is limited by the small number of studies. The aim of this work was determine if elderly patients detected with hyperhomocysteinemia have an increased risk of developing abnormalities in the central auditory processes as compared with a group of patients with appropriate homocysteine levels, and to define the behaviour of psychoacoustic tests and long latency potentials (P300) in these patients.
Methods: This was a cross-sectional, comparative and analytical study.
Objective: To identify the natural tendencies of hits and calculate the cutoff for a test group of central auditory processes (CAP): binaural fusion, filtered words, dichotic digits, frequency patterns and duration patterns and ambient sounds in normal 5-, 7-, 9- and 11-year-old children.
Material And Methods: We studied 369 children (738 ears) who attend public schools in Puebla City, administering 6 CAP tests (two binaural and four monaural); we used an audiometer at 50dB SL re-threshold at 1 kHz, from a CD recorded at the CCECADET-UNAM-INR (Centre for Applied Science and Technological Development at the National Autonomous University of Mexico and the National Institute for Rehabilitation).
Results: We determined the cutoff points for the six tests.
[Sjögren's syndrome: Audiological and clinical behaviour in terms of age].
Acta Otorrinolaringol Esp
February 2011
Introduction And Objective: To determine the clinical and audiological behaviour per age group in Sjögren's Syndrome (SS), considering that it is the second most frequent autoimmune rheumatic disease.
Material And Method: The study included 29 patients with SS with clinical history and audiological studies. The design was prospective, descriptive and transversal.
[Assessment of central auditory processes in Spanish in children with dyslexia and controls. Binaural Fusion Test and Filtered Word Test].
Acta Otorrinolaringol Esp
July 2010
Objectives: The aim is to assess the ability to discriminate words, using two psychoacoustic verbal tests of central auditory processes in Spanish: Binaural Fusion Test (BFT in its Spanish version) and Filtered Word Test (FWT in its Spanish version) in children with dyslexia and controls.
Methods: One group of 40 dyslexic children was receiving therapy for dyslexia at the time of the tests. 40 children without dyslexia were selected as controls, out of 298 children who attended a public school.
Objective: To identify and describe vestibular abnormalities in patients with Vogt-Koyanagi-Harada syndrome (VKH).
Materials And Method: Prospective, cross-sectional, observational and descriptive study. Patients with VKH referred by an ophthalmological center, were interrogated and physically examined in search of signs of vestibular abnormalities, and if positive, they underwent videonystagmography, computerized dynamic posturography, tonal audiometry and tympanometry.
Objective: To identify and describe peripheral and central audiological abnormalities of patients with Vogt Koyanagi Harada syndrome.
Materials And Methods: Prospective, cross-sectional, observational, descriptive study. Vogt Koyanagi Harada patients referred from an ophthalmologic centre were assessed for signs and symptoms of auditory pathology.
Introduction And Objective: To identify the auditory or clinical test that has the best correlation with the ear in which we apply the monaural hearing aid in symmetric bilateral hearing loss.
Material And Method: A total of 37 adult patients with symmetric bilateral hearing loss were examined regarding the correlation between the best score in speech discrimination test, corporal laterality, auditory laterality with dichotic digits in Spanish and score for filtered words with monaural hearing aid.
Results: The best correlation was obtained between auditory laterality and gain with hearing aid (0.