Phonological assessment for Greek (PAel) test: Reliability and validity in 4-to 6-year-old preschool children.

Single-word phonological tests are widely used for detecting children at risk for Speech Sound Disorders (SSDs). However, specific conceptual and operational criteria should be evaluated to ensure that these assessments are valid and reliable and can serve as diagnostic tools. The current study aimed to investigate the validity and reliability of the screener of a phonological Greek instrument, named the Phonological Assessment for Greek (PAel) comparing the phonological performance of typically developing (TD) children and children with SSDs, aged 4 to 6 years. The participants were 20 TD children and 40 children with SSDs. All participants completed the screener of PAel, the 70-word list of the standardised Test of Phonetic and Phonological Development (TPPD), and a language test, namely the Action Picture Test. Participants who scored below the 25th percentile on the language test were excluded. Phonological analysis revealed that PAel has high content validity. The participants who had received a diagnosis of SSDs presented restricted consonant and cluster inventories and significantly lower whole-word match levels in comparison to their TD peers. The overall Spearman's correlation coefficients between PAel and TPPD were 0.611 for TD children (p < 0.001) and 0.875 for children with SSDs (p < 0.001), indicating good criterion validity. The tool demonstrated strong test-retest reliability and inter-rater reliability with Spearman values exceeding 0.85, and Intra-class correlation coefficients over 0.90. Overall, the results suggest that PAel has satisfactory reliability and validity and can be used as an assessment tool to detect children at risk for SSDs.

Hearing loss in Sjögren's syndrome patients. A comparative study.

OBJECTIVE: In an attempt to investigate the presence of hearing loss in primary Sjögren's syndrome (SS) patients and to determine the factors that might be involved in its pathogenesis, we prospectively evaluated 45 female SS patients with a mean age of 56.8 +/- 9.23 years and a mean disease duration of 8.32 +/- 5.39 years. METHODS: Forty patients underwent a complete ear-nose-throat physical examination and audiological evaluation with: (a) pure tone audiometry thresholds at octave frequencies of 250 to 8000 Hz; (b) impedance audiometry (tympanogram, static compliance, acoustic reflexes, reflex decay; and (c) speech audiometry and auditory brainstem response where indicated. In addition, glandular and extraglandular manifestations of the disease and drug therapy were recorded. Finally, all patients were tested for the presence of autoantibodies, including: rheumatoid factor, antinuclear antibodies, antibodies to Ro(SSA), La(SSB) nuclear antigens, anticardiolipin antibodies and antineutrophil cytoplasmatic antibodies. The results were compared with those of 40 healthy, age-matched women. RESULTS: We found sensorineural hearing loss (SNHL) in 9 patients (22.5%): 4 patients bilaterally, 4 patients in the left ear only and one in the right ear only. In all cases the site of the ear damage was cochlear. A correlation between SNHL and the duration of the disease was found, while there was no correlation with age, systemic manifestations of the disease or the presence of autoantibodies. In addition, no correlation was found between SNHL and drug therapy. CONCLUSION: Approximately one-fourth of our SS patients presented SNHL of cochlear origin affecting mainly the high frequencies. This prevalence was lower than that reported by other investigators. SNHL was associated only with disease duration. Further investigation is needed to attain a better understanding of the mechanism of inner ear involvement in SS patients.

Hearing loss in progressive systemic sclerosis patients: a comparative study.

OBJECTIVE: To investigate the middle and inner ear involvement in patients with progressive systemic sclerosis (PSS). STUDY DESIGN AND SETTINGS: We prospectively evaluated 34 PSS patients. All patients underwent a complete ear-nose-throat physical examination and audiological evaluation with pure tone, impedance, and speech audiometry. In addition, systemic manifestations of the disease and drug therapy were recorded. Finally, all patients were tested for the presence of autoantibodies. The results were compared with those of 45 age-matched healthy subjects. RESULTS: We found a sensorineural hearing loss in 20% and mixed type hearing loss in 3.3% of the patients. There was no correlation of hearing loss with age, systemic manifestations of the disease, presence of autoantibodies, and drug therapy. Ten percent of the patients had patulous eustachian tubes. CONCLUSION: One fourth of PSS patients had a hearing loss affecting the middle and mainly the high frequencies. This is a lower percentage than that reported by other investigators. A significant prevalence of bilateral patulous eustachian tubes was noticed as well. Further investigation is needed for a better understanding of the mechanism of ear damage in PSS patients.

Foot rotation contribution to trunk and gaze stability during whole-body mediated gaze shifts: a principal component analysis study.

Large gaze displacements are mediated by combined motion of the eye, head, trunk, and foot. We applied principal component analysis (PCA) to examine the degree of variability and linearity in the angular velocity pattern of the various segments involved that participate in this task. Ten normal subjects stood up and had to visually fixate and realign their bodies with LED targets separated 45 degrees apart, ranging from +/-45 to 360 degrees. The outbound movement in this paradigm is unpredictable whereas the return (inbound) movement occurs under spatially predictable conditions. Under such predictable conditions, subjects generate in approximately 15% of the trials gaze shifts, with periods of fairly constant high gaze velocity (single-step gaze shifts). PCA showed that gaze velocity variability did not change if the feet were rotating or not. Foot velocity was variable and showed additional PCs suggestive of non-linear motion components. Trunk and head-in-space velocity showed intermediate levels of variability but its variability decreased during the foot stepping movements. The results suggest that the feet, trunk, and head are less tightly controlled by the central nervous system than gaze velocity. Movements of the feet seem to aid trunk stability and motion rather than gaze control.