More like color perception

A recent motivation for this work is the realization that the genetics of the cone pigments is more variable in females who might be heterozygous for normal or anomalous variants of the L and M genes.

Females have been reported to make finer categorical distinctions across the spectrum, dividing it into more than the seven traditional bands of the rainbow described by Newton.

Jameson, K. A., Highnote, S. M., & Wasserman, L. M. (2001). Richer color experience in observers with multiple photopigment opsin genes. Psychon Bull Rev, 8(2), 244-261.

Recent analysis of female carriers of deuteranomaly, who should express four distinct pigments, found only one of 24 tested showed evidence for greater dimensionality in both her color discrimination and color experience as assessed by multidimensional scaling.

Jordan, G., Deeb, S. S., Bosten, J. M., & Mollon, J. D. (2010). The dimensionality of color vision in carriers of anomalous trichromacy. J Vis, 10(8), 12.

Further studies based on multidimensional scaling have revealed gender differences in color experience in which a red-green dimension has greater salience for females while lightness variations are more salient for males.

Bimler, D. L., Kirkland, J., & Jameson, K. A. (2004). Quantifying variations in personal color spaces: Are there sex differences in color vision? Color Research & Application, 29(2), 128-134.