...as noted by Rhizome (but not described as such):
In coordination with Saks Fifth Avenue and the PS1 Greater New York Exhibition, Brody Condon was invited to contribute a project to be displayed in the Saks window on 50th St. Brody’s proposal was to film a performance inside Saks itself. To his surprise Saks was familiar with his work and agreed.
The piece, a modification of the Trisha Brown work Accumulation (1971), is a floor-based dance performance based on various seizure-like movements choreographed by Stephen Lichty, who is himself familiar with movement disorders.
-- DESCRIPTION FROM DIS MAGAZINE
In the accompanying photos the "seizure-like movements" are all by attractive female models, of course.
Why is Saks' green light for this a "surprise"? Guess everyone's forgotten heroin chic and Diesel's "dead teenagers" campaign. And name-checking Trisha Brown, how wonderfully correct.