Dive into the fascinating world of the biological approach in psychology with these concise notes. Uncovering the intricate connections between biology and behaviour, this document explores how genetics, neuroscience, and physiology shape our experiences and mental processes. Discover the role of n...
Investigates how biological structures +
processes impact behaviour
-
Much of human behaviour has a
physiological may be genetically /
cause
-
environmentally altered
-
Genes affect behaviour + influence
individual differences in behaviour
-
The mind lives in the brain
Genetic Basis of behaviour
-
Psychologists try to determine + provide
evidence for the extent to which
behaviours are the product of inheritance,
or environmental factors
Twin studies
-
Psychologists study twins to investigate
the genetic basis of behaviour
→ Monozygotic these twins are formed
=
when a fertilised egg cell splits in two
→
Dizygotic these twins
=
are formed when
two separate eggs become fertilised by
different sperm cells
-
Concordance rates the extent to which
=
a pair of twins share similar traits or
characteristics
, family studies
-
family studies research on
relatives are compared
where = close
certain traits
such as IQ in order to determine
whether genetic factors underlie these
traits
Adoption studies
-
Involve comparing a trait or characteristic
between adopted
children their +
biological or adoptive parents
selective breeding
-
Involves artificially selecting male +
female animals for a particular trait
-
Demonstrates how behavioural
characteristics may have a genetic
basis
Genotype + Phenotype
Genotype genes only determine the
-
-
.
potential for characteristics
•
Phenotype Observable characteristics
=
of an individual
-
The phenotype depends on the
interaction of genetic environmental +
factors
Genotype
•
The actual set of genes an individual
has, or is made up of
•
Genetic material is made up of DNA
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