What is the other name of gender identity disorder?
Gender dysphoria
What is the ratio of people affected by gender dysphoria?
1 and 11000
What is DSM-5 diagnosis of gender dysphoria?
Biological explanation for gender dysphoria:
This is the perception that dysphoria is physiologically determined
Define Gender Dysphoria:
Strong, persistent feelings of identification with opposite gender and discomfort with assigned gender
What does the Brain sex theory suggest?
-Dysphoria is caused by specific brain structures that are incompatible with a person’s biological sex.
Zhou (1995):
studied the bed nucleus of the stria terminalis (BSTc) which is assumed to be fully developed at age 5 and around 40% larger in males than females
Have postmortem studies provided any support for biological explanation of dysphoria?
Yes
How have post postmortems provided support for biological explanation?
Six male-to-female transgender individuals who had received feminising hormones, the BSTc was found to be a similar size to as heterosexual women
Kruijiver et al (2000):
Focused on number of neurons in the BSTc rather than the volume.
Findings of Kruijiver et al (2000):
six transgender individuals showed a similar number of neurons in the BSTc to those found in heterosexual women
Contradicatory evidence for BSTc
Is there a genetic basis for gender dysphoria?
Yes
Method of Heylens et al (2012):
-23 MZ twins with 21 DZ twins where one of each pair was diagnosed with GID
Findings of Heylens et al (2012):
9 (39%) of the MZ twins was concordant for GID compared to none of the DZs which would indicate a role for genetic factors in the development of GID
Evaluation of twin studies:
Why are biological explanations inconclusive?
-Reduce complex conditions and behaviours to a simpler genetic, neuroanatomical and/or hormonal level
Social-psychological explanation:
-GID is a condition learned via socialisation processes
Psychoanalytic theory:
Stoller (1973)
Interviews with GID males, they were seen to display overly close mother-son relationships that would lead to greater female identification and confused gender identity in the long-term
What explanation does Stoller (1973)?
Psychoanalytic theory
Who proposed a cognitive theory for gender dysphoria?
Liben and Bigler (2002)
What was Liben and Bigler (2002) an extension of?
Gender schema theory
What is the dual pathway theory (by Liben and Bigler)
?