Auditory Tone
Auditory Tone - Related Videos
02:38
Recording Auditory Brainstem Responses in a Rat Pup
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2025
This video demonstrates a method for recording auditory brainstem responses (ABRs) from rat pups. It outlines the steps for electrode placement, sound stimulus application, and signal processing analysis in the brainstem to assess neural responses.
10:41
Method to Measure Tone of Axial and Proximal Muscle
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Cited by 5 •
2011
We have developed a device (Twister) to study the regulation of tonic muscle activity during active postural maintenance. Twister measures torsional resistance and muscular responses in standing subjects during twisting of the body axis. The device can be flexibly configured to study various aspects of tonic control across the neck, trunk, and/or hips.
06:34
Infant Auditory Processing and Event-related Brain Oscillations
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Cited by 30 •
2015
High-density electroencephalography (dEEG) is being used increasingly to study brain development and plasticity in the early years of life. Here we present an application of sophisticated analysis techniques that builds on traditional EEG recording to understand the oscillatory dynamics of rapid auditory processing in the infant brain.
01:12
Alterations in Muscle Tone ll
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2026
Alterations in muscle tone are common manifestations of neurological disorders and reflect dysfunction within different nervous system regions. Spasticity, paratonia, and dystonia represent distinct forms of hypertonia, each with unique mechanisms, clinical features, and diagnostic importance.CharacteristicsSpasticity happens from upper motor neuron lesions and is characterized by velocity-dependent resistance to passive movement. Clinical features include:Exaggerated deep tendon reflexesClonus...
10:14
In Ovo Electroporation in the Chicken Auditory Brainstem
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Cited by 6 •
2017
Auditory brainstem neurons of avians and mammals are specialized for fast neural encoding, a fundamental process for normal hearing functions. These neurons arise from distinct precursors of embryonic hindbrain. We present techniques utilizing electroporation to express genes in the hindbrain of chicken embryos to study gene function during auditory development.
FAQs
These dimensions influence different aspects of the auditory experience and can therefore produce different behavioral effects. Frequency is closely associated with perceived pitch, while intensity and duration alter how the stimulus is experienced over time. Varying one property while holding the others constant helps researchers determine whether an organism responds to pitch-related information, sound strength, stimulus persistence, or their combination.
Precise frequency control allows investigators to present tones that differ systematically in pitch-related information. This makes it possible to test whether an organism detects a sound, distinguishes one frequency from another, or changes its response when the stimulus changes. Such control links measurable behavioral patterns to sensory processing rather than to uncontrolled differences between sound stimuli.
Cochlear hair cells provide the conversion step between sound-related mechanical movement and neural signaling. When vibrations reach the cochlea, movement of these cells contributes to signals that the nervous system can process as auditory information. Behavioral experiments depend on this pathway because detection, discrimination, attention, and learning responses ultimately reflect how sensory signals are transformed and interpreted.
A controlled tone provides a consistent event against which an organism’s response can be measured. Differences in responding may indicate changes in detection, discrimination, attention, learning, or sensory processing. Because the stimulus properties can be adjusted independently, researchers can examine how an auditory experience becomes a behavioral response, including responses associated with communication or conditioning.
A typical approach begins by selecting a tone with defined stimulus properties, including frequency and, when relevant, intensity and duration. The tone is then presented as a controlled cue or stimulus while researchers observe a targeted behavior. They can compare responses across tone conditions to evaluate detection, discrimination, attention, learning, or other response patterns.
Frequency is the relevant variable when the research question concerns pitch-related perception or the ability to distinguish sounds by frequency. Duration is more appropriate when stimulus persistence matters, whereas intensity addresses differences in sound strength. Separating these manipulations helps researchers identify which acoustic property influences a behavioral outcome instead of treating every change as a general difference in sound.
Controlled tones can support measurements of whether an organism detects a sound, discriminates between stimuli, attends to an auditory cue, or changes behavior through learning. They can also be used in studies of conditioning, communication, and sensory processing. The resulting response patterns help connect specific auditory stimulus properties with observable behavior in a controlled experimental setting.