Session 11 - Lecture 1: Psychiatry

Question 1

Define neurology.

Answer 1

Disorders of the nervous system with established aetiologies, demonstrable anatomical pathology and physical symptoms e.g. PD, stroke, epilepsy, etc.

Question 2

Define psychiatry.

Answer 2

Disorders of mood, thought and behaviour with no/minor physical signs and no/minor visible pathology can be functional or organic.

Question 3

What are hallucinations?

Answer 3

Perceptions without external stimuli.

Question 4

Name three types of study designs.

Answer 4

Family study, twin study and adoption study.

Question 5

Describe the environmental and genetic factors involved in schizophrenia.

Answer 5

Increased risk in siblings (8-10%), for monozygotic twins (45%). However, this also means that over 50% of monozygotic twins are unaffected despite being genetically identical which means there are significant non-inherited risk factors which are also important.