Ferrinne Spector

The Colour of Os: Naturally Biased Associations between Shape and Colour

Daphne Maurer, D. Maurer, F. Spector, 2008, Perception.

The colors of the alphabet: naturally-biased associations between shape and color.

Daphne Maurer, D. Maurer, F. Spector, 2011, Journal of experimental psychology. Human perception and performance.