Which contemporary artistic principle emphasizes emotional expression and spontaneity?

Abstract-expressionism is centered around the idea of conveying emotional experience rather than physical reality. This movement, which emerged in the mid-20th century, is characterized by its use of gestural brush strokes, vivid colors, and an emphasis on the act of painting itself as a spontaneous and individual expression of the artist’s innermost thoughts and feelings. The movement champions the notion that art should be a reflection of the artist's own emotional state, allowing for a raw and immediate connection between the artwork and the viewer.

In contrast, Minimalism focuses on simplicity and the elimination of personal expression in favor of geometric forms and limited color palettes, while Pop Art draws upon popular culture and consumerism, often with a sense of irony. Conceptual Art prioritizes ideas and concepts over the aesthetic value of the artwork, emphasizing meaning over emotional expression. Therefore, when considering emotional expression and spontaneity, abstract-expressionism stands out as the dominant principle among the choices provided.