Rotating image of human brain, illustrating the lateral sulcus in the brain. The term sulcus (pl. sulci) is a general descriptive term for a furrow or fissure.
Halo may refer to: 1  Halo (religious iconography), a glow or ring of light around a head or person in art. 2  Halo (series), video game franchise.
Halo Effect Definition Halo effect refer to the widespread human tendency in impression formation to assume that once a person possesses some positive or negative characteristic, other as yet unknown qualities will also be positive or negative, in other words, consistent with the existing impression.