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Palinacousis, Palinacousis: Seven New Cases.
Madeline C Fields1, Lara V Marcuse1, Ji-Yeoun Yoo1
1Departments of Neurology and.
Summary
Palinacousis, an auditory illusion, may originate from the superior temporal gyrus due to seizure activity or postictal dysfunction. This study details seven new cases, enhancing our understanding of auditory processing.
Area of Science:
- Neuroscience
- Auditory Perception
- Neurology
Background:
- Palinacousis is a rare auditory illusion where sounds persist or repeat after stimulation ceases.
- Approximately 32 cases of palinacousis have been documented in medical literature.
Purpose of the Study:
- To describe seven new cases of palinacousis.
- To enhance the understanding of auditory processing and the phenomenon of palinacousis.
Main Methods:
- Patients experiencing palinacousis were identified from epilepsy clinic and Epilepsy Monitoring Unit (EMU) settings.
- Electroencephalography (EEG) and Magnetic Resonance Imaging (MRI) were conducted for all included patients.
Main Results:
- One case involved palinacousis triggered by stimulation of the superior temporal gyrus during brain mapping.
- Two cases presented palinacousis during seizures captured on video EEG.
- Four cases reported palinacousis in the peri- or postictal periods.
Conclusions:
- Palinacousis is proposed to originate from the superior temporal gyrus, linked to seizure activity or postictal dysfunction.
- Studying palinacousis in these pathological states offers insights into auditory information processing.
- This research contributes to understanding the neural basis of auditory perception.
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