(Central) auditory processing in schoolers in initial literacy grades

Area of Science:

• Audiology
• Developmental Psychology
• Educational Neuroscience

Background:

• Central auditory processing (CAP) is crucial for academic success.
• Early identification of CAP deficits in school-aged children is essential.
• Behavioral tests provide a non-invasive method to assess CAP.

Purpose of the Study:

• To characterize and compare behavioral CAP tests in first and second graders across test-retest intervals.
• To correlate age and gender with CAP test outcomes.
• To identify specific CAP tests sensitive to changes over time.

Main Methods:

• A longitudinal, observational cohort study involving 36 schoolers (G1: 13 first graders, G2: 23 second graders).
• Audiological assessments and behavioral CAP tests administered at two time points, six months apart (test and retest).
• Inclusion criteria: normal audiological patterns; exclusion criteria: neurological, cognitive, or behavioral disorders.

Main Results:

• The Dichotic Digits test showed the highest prevalence of change between test and retest.
• Initial difficulties with the Rapidly Gatedావ Speech Test (RGDT) persisted in some children across both groups.
• A significant improvement in performance was observed in the retest stage for both groups.
• A correlation was found between age and performance on the left ear of the Dichotic Digits test.

Conclusions:

• Behavioral CAP tests revealed a high incidence of alterations in initial grades.
• A notable performance improvement occurred in the retest stage, particularly in sound localization, Dichotic Digits, and RGDT.
• The findings highlight the dynamic nature of CAP development and the utility of repeated testing.