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Does Joker have Pseudobulbar Affect? | Pathological Laughter & PBA
Pathological Laughter II (Pseudobulbar Affect)
Man Laughs Uncontrollably Like Joker
The real 'Joker': What happens if you can't stop laughing...or crying | 7NEWS Spotlight
Meet Scott Lotan
Caught My Pseudobulbar affect (PBA) Laughter On Camera Wearing Joker Makeup
PBA Is No Laughing Matter
Pseudobulbar Affect: An Emotional Mismatch
Why couldn't the Joker stop laughing? medical reason for jokers uncontrollable laugh [SPOILER ALERT]
What mental illness does the Joker have
Is the Joker's uncontrollable laugh a real thing? PBA and BPD?
Why is the Joker Laughing? - What is the Pseudobulbar Effect?