attentional capture
Summary
Attentional capture is the involuntary pull of attention toward a stimulus, a form of bottom-up (stimulus-driven) processing, even when you were focused on something else. Sudden, intense or personally relevant stimuli, like a loud noise or your own name, often capture attention, though current goals can modulate it.
Detail
Meaning: Attentional capture is the involuntary shifting of attention to a stimulus because of its properties or personal importance, not because of the observer's current goal. It is bottom-up (stimulus-driven) processing. Stimuli that often capture attention include sudden onsets, loud sounds, motion, high contrast, novelty, and personally relevant items such as your own name. Top-down (goal-driven) attention is the contrast: you choose where to attend based on your task. Capture can draw resources away from the task at hand.
On the MCAT: A passage describes a person doing a task, such as reading or visual search, while a distractor appears, such as a flashing pop-up or their name in another conversation (the cocktail party effect). Predict slower reaction times or more errors on the main task. Questions may ask you to label a process as bottom-up or top-down.
Common confusion: Capture is not attention in general. Attention you direct on purpose is top-down. It also differs from divided attention, which means doing two tasks at once. Goals still matter: stimuli that match what you are searching for tend to capture attention more readily, so capture is not fully independent of top-down influence.
Sources
- Psychology (Myers)
- Cognitive Psychology (Goldstein)
- Sensation and Perception (Wolfe et al.)
Written for the MCAT and checked before it was published. For study reference only. Spotted an error? Let us know.