the process of detecting a target visual stimulus among distractor stimuli. In experimental studies, the characteristics of the target and distractors are manipulated to explore the mental operations that underlie visual attention. See also feature-integration theory.
n. an inflammation of the pancreas, marked by severe abdominal pain and caused by biliary tract disorders (e.g., gallstones), alcoholism, viral infection, or reactions to certain drugs (e.g., some antipsychotic agents).