Related Experiment Video
Updated: Jul 12, 2026
07:14
A Method to Study Adaptation to Left-Right Reversed Audition
Published on: October 29, 2018
Evidence for functional abnormality in the right auditory cortex during musical hallucinations
Lancet (London, England)
|November 24, 1999
Summary
Musical hallucinations in an elderly woman were linked to dysfunction in the right auditory cortex. Neuromagnetic and blood-flow imaging confirmed this auditory cortex abnormality.
Area of Science:
- Neuroscience
- Auditory Neuroscience
- Clinical Neurology
Background:
- Musical hallucinations are complex auditory phenomena.
- Understanding the neural correlates of musical hallucinations is crucial for diagnosis and treatment.
- Cognitive integrity is often preserved in individuals experiencing musical hallucinations.
Observation:
- An 88-year-old woman experienced musical hallucinations.
- The patient remained cognitively intact throughout the observation period.
- Neuromagnetic and cerebral blood-flow measurements were utilized to investigate the phenomenon.
Findings:
- Dysfunction was localized to the right auditory cortex during episodes of musical hallucination.
- Neuroimaging data revealed specific patterns of altered brain activity in the auditory cortex.
- These findings suggest a distinct neural basis for musical hallucinations in this patient.
Implications:
- The study highlights the role of the right auditory cortex in musical hallucinations.
- This research may inform future diagnostic approaches for auditory disorders.
- Further investigation into auditory cortex function could reveal new therapeutic targets.
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.
01:13The 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.
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...
01:31Respiratory System Abnormal Finding II: Palpation and Auscultation
In assessing respiratory abnormalities, palpation and auscultation are critical tools for detecting and interpreting various pathophysiological changes. These techniques provide insight into underlying disorders by evaluating tactile sensations and sounds produced by the respiratory system.
Palpation Findings
During a respiratory assessment, palpation can reveal several vital abnormalities:
Palpation Findings
During a respiratory assessment, palpation can reveal several vital abnormalities:
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...
01:21Perceiving 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...