Related Experiment Video
Updated: Jun 1, 2026
09:44
Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss
Published on: January 25, 2016
Musical hallucination associated with hearing loss
Tanit Ganz Sanchez1, Savya Cybelle Milhomem Rocha, Keila Alessandra Baraldi Knobel
1Tinnitus Research Group, Medical School, São Paulo University, São Paulo, SP, Brazil. tanitsanchez@gmail.com
Arquivos De Neuro-Psiquiatria
|June 1, 2011
Summary
Musical hallucinations, often linked to hearing loss, may stem from auditory memory circuit disinhibition. Treatments like hearing aids show promise, but pharmacological interventions yield inconsistent results.
Area of Science:
- Neuroscience
- Otolaryngology
- Psychiatry
Background:
- Musical hallucinations significantly impact patients but lack expert attention.
- Current understanding suggests a combination of peripheral and central nervous system dysfunctions.
- Hearing loss is a key factor, potentially causing disinhibition of auditory memory circuits due to sensory deprivation.
Purpose of the Study:
- To explore the underlying mechanisms and potential treatments for musical hallucinations.
- To review the current evidence on the physiopathology and laterality of musical hallucinations.
- To assess the efficacy of various interventions, including hearing aids and pharmacological agents.
Main Methods:
- Review of existing literature on musical hallucinations.
- Analysis of functional studies on auditory perception and imagery.
- Examination of reported treatment outcomes for pharmacological interventions.
Main Results:
- Sensory deprivation from hearing loss may disinhibit auditory memory circuits.
- The superior temporal gyrus and auditory association cortex are implicated.
- Melodies activate the right temporal lobe, while songs with words activate bilaterally.
- Hearing aids can improve musical hallucinations by addressing hearing loss.
- Pharmacological treatments (carbamazepine, meclobemide, donepezil) show inconsistent efficacy.
Conclusions:
- Musical hallucinations involve complex auditory pathway dysfunctions.
- Hearing rehabilitation is a viable approach.
- Further research is needed to establish consistent and effective pharmacological treatments.
Related Concept Videos
01:31Hearing
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.
01:26Positive Symptoms Schizophrenia: Hallucinations and Delusions
Schizophrenia is a complex psychiatric disorder characterized by a range of symptoms that significantly impact cognition, behavior, and emotional regulation. Among these, the positive symptoms stand out as they involve the addition or exaggeration of normal mental functions, deviating markedly from typical behavior and perception. Hallucinations and delusions are prominent positive symptoms, each profoundly affecting the individual's experience of reality.
Hallucinations
Hallucinations in...
Hallucinations
Hallucinations in...
01:21Perceiving 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...
01:17Auditory 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...
01:15Auditory 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...
01:01Perception of Sound Waves
The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...