sex
is a biological status (innate)
biologically determined by their genetic make-up.
chromosomes influence hormonal and anatomical differences that distinguish males and females (e.g reproductive organs, body shape and hair growth)
gender
is a psychosocial status (nurture)
gender, described as masculine or feminine reflects all the attitudes, behaviours and roles we associate with being male or female.
whilst biological sex cannot change despite sex change surgery, gender is more fluid and an individual can also become more masculine or feminine.
GID
gender identity disorder
for most people their biological sex and gender identity correspond.
for others their biological sex does not reflect the way they feel inside and the gender they identify themselves as being.
gender reassignment surgery allows people to bring their sexual identity in line with their gender identity.
sex-role stereotypes
social expectations
are shared by a culture or group and consist of expectations regarding how males and females should behave.
these expectations are transmitted through a society and reinforced by members if it.
are sex role stereotypes valid
some expectations have some basis in reality
e.g in many cases it might be the male in a heterosexual couple who is responsible for DIY whilst the female buys and sends the birthday cards from both of them
however their is no biological reason for this to be the case
many sex role stereotypes are incorrect assumptions and can lead to sexist and damaging attitudes
e.g the stereotype that women are too emotional to cope with high powered jobs.
sex role stereotypes in the media
a study of TV adverts found that men were more likely to be shown in autonomous roles within professional contexts, whereas women were often seen occupying familial roles within domestic settings
this along with other studies demonstrates both the existence of sex role stereotypes and the role the media has in reinforcing them
androgyny
is a balance of masculine and feminine characteristics
everyday understanding relates to appearance as being neither male or female
psychologically it refers to the presence of a balance of masculine and feminine traits, behaviours and attitudes.
androgyny as a positive attribute
Bem
Bem suggested that high androgyny is associated with psychological well being
individuals who have balance of masculine and feminine traits are better equipped to adapt to a range of situations
androgyny needs to be distinguished from over representation of opposite sex characteristics
e.g a female who is very masculine would not exhibit the necessary balance of male and female traits.
measuring androgyny
Bem sex role inventory (BSM)
different item categories
items in the BSRI are masculine, feminine or neutral.
masculine items include dominant, competitive and athletic
female items include gentle, affectionate and sympathetic
neutral items are characteristics which do not apply more specifically to one sex than another, including sincere, friendly and unpredictable.
BSRI number of questions and how the answer is rated
BSRI has 60 questions
20 feminine, 20 masculine, 20 neutral
participants use a 7 point scale to rate each trait
where 1 is never true and 7 is always true
BSRI
4 categories
evaluations of androgyny and BSRI
chromosome 23
determines biological sex
female is XX
male is XY
a baby’s sex is determined by whether the sperm to fertilise the egg is an X or a Y chromosome
Y chromosome
carries a gene called the sex determining region Y (SRY).
this causes the testes to develop and androgens to be produced in a male embryo.
without androgens the embryo develops into a female.
what controls gender development
hormones
prenatally hormones act upon brain development and cause development of the reproductive organs.
at puberty a burst of hormonal activity triggers the development of secondary sexual characteristics such as pubic hair.
male and females produce the same hormones but in different concentrations
testosterone
controls the development of male sex organs from the 5th month of fetal development.
testosterone is also linked to aggressive behaviour in both genders, in humans and animals.
e.g Van de Poll et al showed that female rats injected with testosterone became more physically and sexually aggressive.
oestrogen
controls female sexual characteristics including menstruation.
during the menstrual cycle some women experienced heightened emotional and irritability pre menstrual syndrome
in extreme cases PMS has been used as a defence for violent behaviour in women.
oxytocin
women typically produce oxytocin in larger amounts than men
evaluation of role of chromosomes and hormones
Klinefelter’s syndrome
XXY chromosomal structure
about 1 in 750 males have this.
individuals who have this condition are biological males with male anatomy but an additional X chromosome
10% of cases are identified prenatally but up to 66% may not be aware of it.
diagnosis often comes about accidentally via a medical examination for some unrelated condition
Klinefelter’s syndrome
physical characteristics
Klinefelter’s syndrome
psychological characteristics
Turners syndrome
XO chromosomal structure
1 in 5000 females have this.
caused by an absence of one of the 2 X chromosomes leading to 45 rather than 46 chromosomes
Turner’s syndrome
physical characteristics