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Auditory Perception

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...

Perceiving Loudness, Pitch, and Location

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...

Auditory Pathway

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...

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Related Experiment Video

Updated: Jul 4, 2026

Making Sense of Listening: The IMAP Test Battery

Making Sense of Listening: The IMAP Test Battery

Published on: October 11, 2010

APEX 3: a multi-purpose test platform for auditory psychophysical experiments.

Tom Francart¹, Astrid van Wieringen, Jan Wouters

¹ExpORL, Department of Neurosciences, Katholieke Universiteit Leuven, O & N 2, Herestraat 49 Bus 721, Leuven, Belgium. Tom.Francart@med.kuleuven.be

Journal of Neuroscience Methods

|June 10, 2008

Summary

This summary is machine-generated.

APEX 3 is a free software platform for auditory experiments. It enables easy setup of behavioral tests with various output devices, including cochlear implants, without programming.

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Last Updated: Jul 4, 2026

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Area of Science:

Auditory Neuroscience
Psychophysics
Software Engineering

Background:

Auditory behavioral experiments require specialized software platforms.
Existing platforms may lack flexibility or require programming expertise.
APEX 3 aims to address these limitations.

Purpose of the Study:

To introduce APEX 3, a versatile software test platform for auditory research.
To highlight its user-friendly, no-programming interface for experiment setup.
To detail its compatibility with various auditory output devices and customization options.

Main Methods:

APEX 3 provides a generic setup for auditory experiments.
It supports sound cards and cochlear implants (Cochlear Corporation, Advanced Bionics Corporation).
Features include pre-built psychophysical procedures and custom procedure integration via plug-ins.

Main Results:

APEX 3 offers a flexible and accessible platform for auditory research.
It simplifies the creation and execution of behavioral experiments.
The software is compatible with Linux and Windows operating systems.

Conclusions:

APEX 3 is a valuable, free resource for researchers in auditory science.
Its design facilitates the study of auditory perception and behavior.
The platform enhances experimental efficiency and accessibility.