Previous studies have linked Presbycusis (PC) to cognitive impairment and incident Alzheimer’s disease. However, the neural mechanisms of cognitive impairment in patients with PC remain unclear. Although resting-state functional MRI studies have explored low-frequency oscillation (LFO) connectivity or amplitude of PC-related neural activity, it remains unclear whether the abnormalities occur within all frequency bands or within specific frequency bands. Therefore, we applied ALFF to examine changes in LFO amplitudes in PC patients at different frequency bands (slow-4 and slow-5). Then, we used brain regions showing altered ALFF as seeds to explore FC between these regions and all other brain voxels.
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