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| 6.5a
Sexually inappropriate behaviour after TBI |
This section includes an outline of:
- Types of inappropriate
sexual behaviour after TBI
- Causes of inappropriate
sexual behaviour after TBI
Types
of inappropriate sexual behaviour
Common
types of inappropriate sexual behaviour encountered by staff after
TBI include:
- exhibitionism
- genital
touching
- non-genital
touching
- coercive
sexual assault
Touching
genital areas refers to breast, buttocks or penis.
Touching
non-genital areas refers to anywhere else on the body including patting
a person
on the knee, touching a person's shoulder, arm, back etc.
Coercive
sexual assault refers to the forcible grabbing of a person, attempting
to undress a person, attempting to have non-consenting intercourse
with a person.
The
following chart shows the relative incidents of these behaviours
after TBI.

Simpson et al. 1999
Staff are a significant
target group for inappropriate sexual behaviour encountered by people
after TBI.

Simpson et al. 1999
Causes of sexually inappropriate behaviour
Most
commonly, sexually inappropriate behaviour is the result of disinhibition
not hypersexuality. We know this because low sex drive is far more common
than increased sex drive after TBI. So a person can have low sex drive
but still act in a sexually disinhibited way. This is because different
mechanisms within the brain are involved. This is an important distinction.
Some forms
of brain damage may lead to "loss of moral-ethical restraints
and to gross sexual misconduct without any hypersexuality,
i.e. without
increased frequency of sexual arousal."
Walker,
1976. The neurological basis of sex. Neuorology India, 24, p.7.
"Injury
to the older baso-orbital region may produce disinhibited, sexually
inappropriate behaviour, which may be verbal and devoid of any true
sexual arousal."
Horn & Zasler, 1990. Neuro-anatomy and the neurophysiology
of sexual function. Journal of Head Trauma Rehabilitation, 5(2),
p. 5.
"...make
a distinction between disinhibited sexual behaviour and hypersexual
behaviour. According to this view, true hypersexuality is more common
with damage to the limbic system of the brain, whereas disinhibited
sexual behaviour, as a part of general disinhibition, seems to be
related to involvement of the frontal lobes and associated structures."
Miller, 1994. Sex and the brain injured patient. Journal of
Cognitive
Rehabilitation, May/June, p.14.

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