A lack of S-cones is known as ______.

The Seattle Longitudinal Study is best described as a study that uses which of the following methods to study how adult cognition changes with age?

a. only cross-sectional methods b. only longitudinal methods c. neither cross-sectional nor longitudinal methods d. both cross-sectional and longitudinal methods

Which of the following statements describes our current understanding of differences in the structure of human female and human male brains?

A) Male and female brains are identical. B) Some suggestions of differences have been reported, but none of the differences has proven to be replicable. C) Many structural differences have been documented. D) The female frontal cortex is substantially larger than the male counterpart. E) The male frontal cortex has an extra layer.