L8 - Biological Approach

Question 1

What are Neurotransmitters?

Answer 1

They release chemicals that allow neurons to communicate with each other

Psychologists say that neurotransmitter levels can affect behaviour

e.g low serotonin = depression

Question 2

What are Hormones?

Answer 2

• Released as part of the endocrine system via glands
• Biopsychologists argue that hormone levels can affect behaviour

e.g high testosterone = aggressive behaviour

Question 3

Evaluation (+)

Answer 3

+ Uses scientific methods + highly controlled methods = replicable + reliable
+ Has practical applications e.g drugs for depression like SSRIs for low serotonin
+ If people know they have a genetic predisposition to a certain disorder, then they know not to trigger it environmentally, or how to develop coping skills

Question 4

Evaluation (-)

Answer 4

• Biologically reductionist: you cannot break it down without taking into account other factors like cognitive, emotional and cultural factors.
• Some studies suggest a genetic basis for criminal behaviour, and could lead to genetic screening of populations and subsequent discrimination.