Imaginary sensations, such as seeing, hearing, or smelling things that do not exist in the real world, are known as

Fragile X syndrome

A) is an example of polygenic inheritance. B) occurs when there is a sudden but permanent change in a segment of DNA. C) is the most common inherited cause of intellectual disability. D) occurs more often in females than males because the disorder is X-linked.

The realization that an object's actual size remains the same despite changes in the size of its retinal image is referred to as

a. retinal disparity. c. object permanence. b. size constancy. d. shape constancy.