When the period between 1950 and 1980 brought everything from military conflict to social and political upheaval, artists responded by producing equally disorienting art. “Delirious: Art at the Limits of Reason, 1950–1980,” an exhibition at the Met Breuer in New York City, shows how 62 artists approached this era. The works are arranged in four sections—Vertigo, Excess, Nonsense and Twisted—and include Philip Guston’s cartoonlike paintings of garbage piles and Ana Mendieta’s 1972 self-portrait in which she presses her face against a plate of glass. It’s art at its absurd best, and it runs through Jan. 14, 2018.