emotion enchantment mental 

Traditions arcane, occult

Cast [>>] somatic, verbal

Range 30 feet; Targets 1 living creature

Saving Throw Will; Duration sustained

The target is overtaken with uncontrollable laughter. It must attempt a Will save.

Critical Success The target is unaffected.Success The target is plagued with uncontrollable laugher. It can't use reactions.Failure The target is slowed 1 and can't use reactions.Critical Failure The target falls prone and can't use actions or reactions for 1 round. It then suffers the failure effects.

Core Rulebook, page 343.