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Language and Cognition01:27

Language and Cognition

Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
Higher Mental Functions of the Brain: Language01:10

Higher Mental Functions of the Brain: Language

Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
The Cochlea01:13

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.
Auditory Pathway01:15

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...
Hearing01:31

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.
Perceiving Loudness, Pitch, and Location01:21

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...

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Related Experiment Video

Updated: Jun 22, 2026

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
06:04

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages

Published on: March 24, 2023

[Is cochlear processing involved in language disorders?].

J A Durand-Rivera1, E Manzano-Martínez, R González-Piña

  • 1Laboratorio de Neuroprotección, Instituto Nacional de Rehabilitación (INR-SSA), México DF, México. jdurand@inr.gob.mx

Revista De Neurologia
|June 10, 2009
PubMed
Summary
This summary is machine-generated.

Outer hair cell function, measured by otoacoustic emissions, is crucial for language processing. Malfunctioning outer hair cells can lead to impaired language development in children.

More Related Videos

Infant Auditory Processing and Event-related Brain Oscillations
06:34

Infant Auditory Processing and Event-related Brain Oscillations

Published on: July 1, 2015

Related Experiment Videos

Last Updated: Jun 22, 2026

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
06:04

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages

Published on: March 24, 2023

Infant Auditory Processing and Event-related Brain Oscillations
06:34

Infant Auditory Processing and Event-related Brain Oscillations

Published on: July 1, 2015

Area of Science:

  • Auditory Neuroscience
  • Speech and Language Pathology
  • Otoacoustic Emissions

Context:

  • Otoacoustic emissions (OAEs) demonstrate the cochlea's active processes and outer hair cell motility.
  • Outer hair cell dysfunction is hypothesized to impair cochlear sound processing and subsequent language development.
  • Understanding the peripheral auditory system's role is key to diagnosing and treating language disorders.

Purpose:

  • To investigate the relationship between outer hair cell function and language processing abilities.
  • To determine if otoacoustic emissions can serve as an indicator of language impairment.
  • To explore potential laterality in peripheral auditory processing related to language.

Summary:

  • This study analyzed otoacoustic emissions (OAEs) and language test results from children, categorized into control, pathological, and pathological with normal initial language test (ILT) groups.
  • While brainstem auditory evoked potentials (BAEPs) showed normal responses across all groups, transient OAEs revealed some differences in reproducibility at specific frequencies in the right ear between groups.
  • Despite some peripheral laterality observed in OAEs, no significant differences in overall OAE reproducibility were found between the groups.

Impact:

  • Findings suggest that peripheral auditory processing, specifically outer hair cell function, plays a role in language development.
  • Otoacoustic emissions may offer insights into the subclinical auditory deficits that could underlie language impairments.
  • This research highlights the importance of considering peripheral auditory mechanisms in the context of language disorders, potentially informing early diagnostic and intervention strategies.