Chapter 2: Theoretical Approaches to Gender Development
I. Theories are ways of explaining, interpreting, or describing relationships among phenomena
in our everyday lives.
A. A theory represents a particular viewpoint as an attempt to understand phenomena.
B. Theories offer more than explanations. They also influence attitudes and behaviors.
C. One theory should not be considered the theory on gender development; theories
work together to create a fuller picture.
II. Biological Theories of Gender
A. Biological theories focus on how sex chromosomes, hormones, and brain
specialization account for gender differences.
B. Sex chromosomes are the X and Y chromosomes that determine if a person is male
or female.
1. Most people inherit one sex chromosome from each parent.
2. Different genes (such as those that influence intelligence and social skills) are
thought to reside on different chromosomes. Because men and women have
different chromosomal makeup, they have different possibilities for gene
expression.
C. Hormonal activity also plays an important role in biological theories. Sex hormones
affect the development of the body and the brain.
1. Estrogen, the primary female hormone, has been shown to have a positive
influence on cardiovascular functioning, to strengthen the immune system, to
create greater deposits of fat around the hips and breasts, and to slow liver
processing of alcohol.
2. Testosterone, the primary male hormone, has been shown to have a hormonal
cycle and has been linked to violence, aggression, and changes in cognitive
functioning. One study shows that men’s testosterone levels decrease when
they become fathers which may increase their nurturing tendencies.
3. Both men and women experiences changes in their hormonal levels over time.
Men’s testosterone levels begin gradually decreasing around age 30 while
women’s hormonal levels change during menopause.
D. The structure of the brain is also said to be responsible for differences in men and
women.
1. While research has shown that women and men use both the right and left
lobes of their brains, the sexes tend to specialize in using different lobes.
a. Men tend to emphasize left brain functioning, responsible for
traditionally linear, logical thought, and abstract, analytical thinking.
b. Women tend to emphasize right brain functioning, responsible for
imaginative, artistic, and intuitive thinking and some visual and spatial
functions.
c. The prefrontal cortex, which restrains aggression, is larger and
develops earlier in women than men. For women, the insula, which
affects intuition and empathy, is larger, while for men, the amygdala,
which is the center for emotions such as anger and fear, is larger.