Behavioural genetics; approach used to understand disorders/ the study of individual
differences in behaviours that are attributable in part differences in genetic make-up.
o Genotype; what you’re born with/inherited/unobservable genetic constitution
o Phenotype; individuals observable behavioural characteristics
o Twin Method; To the extent that a predisposition for a mental disorder can be inherited,
concordance to the disorder should be greater genetically in monozygotic pairs than
o Family Method; if a predisposition for a mental disorder can be inherited, a study of the
family should show a relationship between the number of shared genes in the index
case and the prevalence of the disorder in relatives.
o Adoptees Method; Twins born and raised not with their biological parent. Rules out
o Linkage analysis; researchers try to understand exactly how phenotype plays a role in
genetic disorder. Researchers look for biological/genetic samples where some family
members have a disorder and some don’t.
Frontal Lobe; responsible for executive functioning such as motor movement, planning,
o Right side; when scared can give rise to manic like episodes
o Left Side; when scared can give rise to depressed like states
o Right side;
Responsible for retrieval of information
Comprehension for non-verbal sounds
o Left Side;
Responsible for learning
Vernike’s area; comprehension of verbal sounds/language
o Hippocampus; allows information to be retrieved (affected gravely in Alzheimer’s
Parietal Lobes; responsible for visual/special functioning/constructional functioning