Dataset: "Importance of hue: color discrimination of three-dimensional objects and two-dimensional discs"

This dataset contains observer data and stimulus information for the below publication. Refer to this manuscript for more details.

Laysa Hedjar, Matteo Toscani, and Karl R. Gegenfurtner, "The importance of hue: color discrimination of three-dimensional objects and two-dimensional discs," Journal of the Optical Society of American A 42(5), 1-9 (2025), doi:10.1364/JOSAA.544380

Experimental participant data is available in thresholds.csv: 

ptID: participant ID number

JND (DT units): just-noticable difference threshold in detection threshold units

stimulus type: 3D blob stimulus or 2D disc stimulus

quadrant: quadrant of DKL color space

color dimension: dimension of color difference (hue or chroma)

direction: direction of color difference (increasing or decreasing for chroma, clockwise [cw] or counter-clockwise [ccw] for hue)

Participant data used to scale DKL color space is available in detection_thresholds.csv:

ptID: participant ID number

JND (arbitrary DKL units): just-noticable detection threshold

angle: angle measured in DKL color space (Angle 0 is the positive L-M axis, Angle 90 is the positive S-(L+M) axis)