Benchmarks for the Dichotic Sentence Identification test in Brazilian Portuguese for ear and age.
BACKGROUND
Dichotic listening tests should be used in local languages and adapted for the population.


OBJECTIVE
Standardize the Brazilian Portuguese version of the Dichotic Sentence Identification test in normal listeners, comparing the performance for age and ear.


METHODS
This prospective study included 200 normal listeners divided into four groups according to age: 13-19 years (GI), 20-29 years (GII), 30-39 years (GIII), and 40-49 years (GIV). The Dichotic Sentence Identification was applied in four stages: training, binaural integration and directed sound from right and left.


RESULTS
Better results for the right ear were observed in the stages of binaural integration in all assessed groups. There was a negative correlation between age and percentage of correct responses in both ears for free report and training. The worst performance in all stages of the test was observed for the age group 40-49 years old.


CONCLUSIONS
Reference values for the Brazilian Portuguese version of the Dichotic Sentence Identification test in normal listeners aged 13-49 years were established according to age, ear, and test stage; they should be used as benchmarks when evaluating individuals with these characteristics.
Department of Speech Therapy, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil. Electronic address: adriandrad@hotmail.com.
Adriana Neves de
AN
Andrade
Department of Speech Therapy, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil.
Daniela
D
Gil
Department of Speech Therapy, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil.
Maria Cecilia Martinelli
MC
Iorio
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001307:Auditory Perception / Q000502:physiology*; D019985:Benchmarking; D001938:Brazil; D002648:Child; D004007:Dichotic Listening Tests / Q000379:methods / Q000592:standards*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012015:Reference Standards; D013067:Speech Perception / Q000502:physiology*; D055815:Young Adult
Auditory cortex; Audição; Córtex auditivo; Hearing; Hearing tests; Processamento espacial; Spatial processing; Speech discrimination test; Testes auditivos; Testes de discriminação da fala; Validade dos testes; Validity of tests