This page contains the images and details of the stimulus presentation for the experiments reported in:

• DA Kahn, AM Harris, DA Wolk, GK Aguirre. (2010) Temporally distinct neural coding of perceptual similarity and prototype bias. Journal of Vision, 10(10):12, 1-12.

The face images used were derived from the NimStim Face Stimulus Set.

Morphs were created using Gryphon Morph 2.5 in 25% increments between the two endpoint faces. Resulting faces were cropped using the same 3-pixel feathered elliptical outline in Photoshop and saved as grayscale bitmaps.

The stimuli may be downloaded as a zipped file of BMP images from our public file repository: