| environmental stimulation and changes in testosterone level, 20
|
| focus single-minded, and testosterone, 42, 4446
|
| glial cells, 65
|
| learning disabilities, 47
|
| limbic system and amygdala, 21, 121
|
| metaphors for functioning of, 2122
|
| "Need for Cognition" scores, men and women, 50
|
| spatial skills, 5158
|
| testosterone and, 10, 2021, 4172
|
| testosterone, optimal level in, 59
|
| testosterone, size of and, 6465
|
| verbal skills, 42, 47
|
| web thinking versus step thinking, 43
|
|