Pseudobulbar affect is an emotional lability produced by degradation of the corticobulbar tracts in ALS that manifests as laughing, weeping, or yawning that is unrelated to a person’s real mood or cognitive state.
Reference: https://medium.com/@alsdeanna0209/treatments-for-amyotrophic-lateral-sclerosis-als-symptoms-467e2be55d4b
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