Posner's cueing paradigm

Posner's cueing paradigm is a psychological experiment used to study attention. It involves showing participants a visual cue—like a brief flash—to indicate where a target, such as a dot or letter, will appear on a screen. Sometimes the cue correctly predicts the location (valid cue), speeding up response times, while other times it is incorrect (invalid cue), causing delays. This setup helps researchers understand how our attention shifts based on expectations and cues, revealing how effectively we can quickly focus on the relevant location in our environment.