No matter how abstract your topic ... though they don't think of them as examples, but as objects. They don't understand why this bias toward the physical matters nor why it works.

Abstract thought is usually defined alongside its opposite: concrete thinking. Concrete thinking is connected closely to objects and experiences that can be directly observed. An example of a task ...

The ducklings might follow two identical spheres after being primed with two identical pyramids, for example. Next, they tried it with pairs of identical objects that had either matching or ...