Related Experiment Video
Updated: Jun 13, 2026

06:04
Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
[How do results in BAKO 1-4 and H-LAD-test correlate with auditory processing?].
S Brosch1, R Reiter, J Imgrunt
1Sektion für Phoniatrie und Pädaudiologie der HNO Univ.-Klinik, Ulm. sibylle.brosch@uniklinik-ulm.de
Laryngo- Rhino- Otologie
|April 14, 2010
Summary
Phonological awareness tests reliably identify reading and writing difficulties (RWD) and attention deficit disorder (ADD) in children. However, auditory tests alone cannot distinguish these conditions or pinpoint central auditory processing deficits.
Area of Science:
- Pediatric audiology
- Developmental psychology
- Educational neuroscience
Context:
- Children with reading and writing difficulties (RWD) and attention deficit disorder (ADD) often exhibit delayed phonological awareness.
- Distinguishing these conditions and identifying underlying central processing deficits is challenging.
Purpose:
- To evaluate the efficacy of phonological awareness tests (BAKO 1-4, H-LAD) and central auditory tests in differentiating children with RWD and ADD.
- To determine if phonological competence correlates with central auditory processing functions.
Summary:
- Phonological awareness tests (BAKO 1-4, H-LAD) demonstrated reliability in assessing phonological competence.
- No significant gender-specific differences were observed.
- Auditory tests alone were insufficient to distinguish between central auditory processing disorder, RWD, ADD, delayed speech acquisition, and phonological consciousness delays.
Impact:
- Phoneme discrimination capacity is not directly correlated with central auditory functions.
- Not all children with RWD or ADD have central auditory processing deficits requiring therapy.
- An interdisciplinary, individualized management approach is crucial for children with these complex needs.
Related Concept Videos
Auditory Pathway
Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...
Auditory Perception
The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the cochlea, a...
Hearing
When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
The Cochlea
The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
Perceiving Loudness, Pitch, and Location
The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by identifying...
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by identifying...

