The posited phenomenon that any shoal member that stands out in appearance will be preferentially targeted by predators, which may explain why fish prefer to shoal with individuals that resemble themselves.

plural of Perky effect

plural of Droste effect

The phenomenon whereby sensory input, or perceptions, can be mistaken for a mental image when perceptual processes and mental imagery interfere with each other.

plural of gyromagnetic effect

The psychophysical phenomenon that an intentional or willed movement is slower than an automatic or reactive one.

plural of hothouse effect

(psychology) The phenomenon that students who teach others learn at a better quality than students who don't teach.

plural of Nordtvedt effect

Nitrogen narcosis.