In strong epiphenomenalism, epiphenomena that are mental phenomena can "only" be caused by physical phenomena, not by other mental phenomena.
In a reductionist framework, the phenomena that can be explained completely in terms of relations between other more fundamental phenomena, are called epiphenomena.
Unfortunately, the idea of epiphenomena in propositional theory is largely subjective and not falsifiable.
Hobson, for different reasons, also considers dreams epiphenomena.
In this theory, epiphenomena refer to images because they are merely products people conceptualize from their actual thought processes.
A particular x (with a corresponding physical particular y) could also have a mental particular that does not supervene on it (epiphenomena).
The ancients regarded organs and their placement as epiphenomena of a greater world order.
Busking is a sophisticated and complex business of appropriating, maintaining, and exploiting liminal space in which those epiphenomena that are not strictly musical have a clear performative and territorial function.