Helen Frankenthaler, the great abstract painter (and legendary party-thrower) died today "after a long illness." She was 83. Frankenthaler's big abstract paintings—made by staining canvas with thin paint—were among the best-known of the "second generation" of abstract expressionism. And even if you don't like them…

Psychologists at Boston University paired paintings by famous abstract expressionists with paintings by a child, monkey, chimpanzee, gorilla, and elephant. They presented the images side by side and asked students to judge which painting was of higher quality. One-third of the time, the art students chose the work of…