null
US
Sign In
Sign Up for Free
Sign Up
We have detected that Javascript is not enabled in your browser. The dynamic nature of our site means that Javascript must be enabled to function properly. Please read our
terms and conditions
for more information.
Next up
Copy and Edit
You need to log in to complete this action!
Register for Free
4378601
the biological approach to explaining OCD
Description
AS - Level psychology (chapter 5 - psychopathology ) Mind Map on the biological approach to explaining OCD, created by Daisy U on 27/01/2016.
No tags specified
psychology
chapter 5 - psychopathology
as - level
Mind Map by
Daisy U
, updated more than 1 year ago
More
Less
Created by
Daisy U
over 8 years ago
63
2
0
Resource summary
the biological approach to explaining OCD
genetic explanations
Lewis - OCD runs in families
37% have parents with it
21% have siblings with it
diathesis stress model
some people are more likely to suffer
may need an experience to trigger it
candidate genes
vulnerability for OCD
the gene 5HT1-D
responsible for the efficiency of transporting serotonin
OCD is polygenic
many genes involved
up to 230 genes may be involved
e.g. dopamine, serotonin, neurotransmitters
different types of OCD
the origin of OCD has different causes for each case
evaluation - genetic explanation
good supporting evidence
twin studies
Nestadt
68% of identical twins
31% of non identical twins
therefore genetic evidence
too many candidate genes
genetic explanations are unlikely to ever be useful
little predictive value
environmental risk hours
traumatic events can cause not just genes
Cromer found over half of patients had a traumatic event
neural explanations
the role of serotonin
neurotransmitters of serotonin
help regulate mood
neurotransmitters - rely information
low levels of serotonin
mood relevant info doesn't take place
can affect mental processes
decision making systems
abnormal functioning of the frontal lobes
these are responsible for logical thinking
abnormal functioning with the part that processes unpleasant emotions
evaluation - neural explanation
some supporting evidence
some antidepressants work purely on the serotonin system
therefore serotonin is involved in OCD
some OCD symptoms in Parkinson's disease
biological processes cause symptoms also responsible for OCD
not clear what neural mechanisms are involved
some studies found decision making systems are responsible
however no system has always been involved
we should not assume that neural mechanisms are involved
same neurotransmitters and structures function abnormally in OCD patients
but abnormal functioning does not cause OCD
evaluation +
the serotonin OCD link may be co - morbidity with depression
many people who have OCD also have depression
the depression probably involves disruption to the serotonin system
twin studies are flawed
twins grow up in the same environment
influences
may also experience different things
influences
Show full summary
Hide full summary
Want to create your own
Mind Maps
for
free
with GoConqr?
Learn more
.
Similar
History of Psychology
mia.rigby
Biological Psychology - Stress
Gurdev Manchanda
Bowlby's Theory of Attachment
Jessica Phillips
Psychology subject map
Jake Pickup
Psychology A1
Ellie Hughes
Memory Key words
Sammy :P
Psychology | Unit 4 | Addiction - Explanations
showmestarlight
The Biological Approach to Psychology
Gabby Wood
Chapter 5: Short-term and Working Memory
krupa8711
Cognitive Psychology - Capacity and encoding
T W
Nervous Systems and the Brain - Lecture 1
Georgina Burchell
Browse Library