PsychologyAugust 29, 2026
occluder
uh-KLOO-der
Definition
An object in a visual scene that blocks or hides another object from view.
Etymology
Derived from the Latin 'occludere,' meaning to shut up or close. It entered English via the verb 'occlude,' with the suffix '-er' denoting an agent or device that performs that action.
In the news
The article uses the term to describe a screen or obstruction that hid the balls from sight, testing whether the participants could continue to mentally track the objects even when they were no longer visible.
A Harvard psychologist and his colleague set out to discover how many moving objects the human imagination can track simultaneously. After nine experiments involving 313 people, their 2025 Nature Communications paper delivered an answer that surprise
Read the full article ↗ScienceBlog.com