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fluttering hearts

a visual illusion in which figures of one color (typically red), presented on a background of the same brightness but a different color (typically blue), will appear to dance when the whole image is moved. The different response speeds of the retinal cones encoding the two colors is thought to be the basis of this illusion.

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Psychology term of the day

January 26th 2025

blind

blind

adj.

1. denoting a lack of sight. See blindness.

2. denoting a lack of awareness. In research, a blind procedure may be employed deliberately to enhance experimental control: A single blind is a procedure in which participants are unaware of the experimental conditions under which they are operating; a double blind is a procedure in which both the participants and the experimenters interacting with them are unaware of the particular experimental conditions; and a triple blind is a procedure in which the participants, experimenters, and data analysts are all unaware of the particular experimental conditions.