This booklet is a guide to help you study for the Unit 3 Biological Psychology section of the Pearson Edexcel A Level Psychology exam. These notes are my personal notes which I used to achieve an A* in my own A Level Psychology exam. Of course, this is only a guide – the notes made here are a sta...
Cognitive Psychology Issues & Debates Model Answers
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PEARSON (PEARSON)
Psychology 2015
Unit 3 - Biological psychology
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Considers MECHANISMS WITHIN THE BODY and
how they affect behaviour
E.G. BRAIN STRUCTURE, NEUROTRANSMISSION,
HORMONES
BIOLOGICAL
LIMBIC SYSTEM Hypothalamus, basal ganglia and prefrontal cortex are linked with aggression
PREFRONTAL CORTEX Linked with aggression and impulsivity
THEORIES
NEUROTRANSMISSION Suggests drug addiction occurs due to altered neurotransmission
HORMONES Suggests testosterone is linked with competitive aggression
Suggests aggression is a result of evolutionary adaptation that had a purpose in our
EVOLUTION ancestral past
RAINE ET AL (1997) Found that NGRIs had subtle brain damage to areas of the brain associated with impulse control STUDIES
OLDS AND MILNER (1954) Found a pleasure centre in the brains of rats
DOWNER (1961) Removed an amygdala in monkeys
Found that lack of aggression is linked with absence of amygdala
BRENDGEN ET AL (2005) Found that physical aggression is linked with genetic factors (nature) and social aggression is
linked with environmental factors (nurture)
METHODS
CORRELATION BRAIN SCANS
TWIN STUDIES ADOPTION
STUDIES
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