Well, if that didn't make you yawn, maybe this will:
I started yawning when I clicked that SoTT link and saw that picture of a guy yawning. I wasn't able to stop for quite awhile.
I've been noticing since High School, that my yawning was related to interest and attention as well as being contagious from others. When I was forced to pay attention to something I was (no longer, or not in any way) interested in, my energy drained out noticeably and I would start yawning.
And then Ouspensky unintentionally provides an example that is common in everyday life:
[quote author=ISOTM]
[...]
I am bound to say that all these attempts came to nothing. Some said too much, others said too little. Some went into unnecessary details or into descriptions of what they considered were their particular and original characteristics; others concentrated on their "sins" and errors. But everything taken together failed to produce what G. evidently expected.
The result was anecdotes, or chronological memoirs which interested nobody, and family recollections which made people yawn.
ISOTM, 254
[/quote]
The empathy connection isn't mentioned explicitly, but Gurdjieff states that yawning is the pumping of energy into the small accumulators and the fact of it being contagious shows that it is essentially a function of the instinctive and the moving centers - an idea which might connect to Sheldrake's hypothesis of formative causation - which would likely be an empathic level connection, OSIT
But would that be bodily empathy or emotional empathy or both, as far as it might relate to psychopaths?
As an aside, the three most contagious things I 'catch' from others is yawning, genuine belly laughter and when someone turns their head to look at something I tend to automatically follow them.
Are ya yawning yet? :P