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Related Concept Videos

Masking and Demasking Agents01:19

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EDTA titrations may necessitate masking and demasking agents to temporarily protect a particular metal ion in a mixture from the EDTA reaction. These agents facilitate the sequential analysis of the metal ions by forming stable complexes with some—but not all—metal ions during certain steps.
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Related Experiment Video

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Masking Level Difference in schoolchildren: environmental analysis.

Quemile Pribs Martins1, Vivian Amaral Faccin1, Mirtes Brückmann1

  • 1Departamento de Fonoaudiologia, Universidade Federal de Santa Maria - UFSM - Santa Maria (RS), Brasil.

Codas
|June 14, 2018
PubMed
Summary
This summary is machine-generated.

The Masking Level Difference (MLD) in children aged 7-10 years is 7.65 dB. This auditory ability is not influenced by gender, parental education, or family income.

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Area of Science:

  • Auditory neuroscience
  • Pediatric audiology

Background:

  • Selective auditory attention is crucial for academic success.
  • Establishing normative data for auditory tests in children is essential for early identification of hearing difficulties.

Purpose of the Study:

  • To determine reference values for the Masking Level Difference (MLD) test in children aged 7-10 years.
  • To investigate the influence of gender, parental education, and family income on MLD performance in schoolchildren.

Main Methods:

  • Thirty-one schoolchildren (20 female, 11 male) aged 7-10 years participated.
  • Standard audiological assessments including Pure Tone Audiometry, Speech Audiometry, and the Dichotic Digits Test were performed.
  • The Masking Level Difference (MLD) test was administered to assess auditory selective attention.

Main Results:

  • The mean MLD value for the study group was 7.65 dB (SD = 2.51 dB).
  • No significant differences in MLD performance were found based on gender or age within the evaluated range.
  • Parental education level and family income did not correlate with children's MLD test results.

Conclusions:

  • The normative MLD value for schoolchildren aged 7-10 years is established at 7.65 dB.
  • MLD performance in this age group appears to be independent of gender, parental education, and socioeconomic status.