ABSTRACT
For an animal, an object is a cognitive achievement, the outcome of a process that
segments sensory/perceptual input into regions as it attends to the sensory/perceptual
dimensions that have proven useful in making predictions, dimensions such as color,
texture, size, and (the multiple dimensions that make up) shape. An object can be seen in
part as the co-occurrence of a set of values on these dimensions, that is, as a feature
vector.