Across
- 2. Two behavioural characteristics of depression are lack of enjoyment in activities a person with depression enjoys/enjoyed and low energy levels and may be lethargic.
- 6. A part of the brain associated with processing unpleasant emotions that functions abnormally in OCD
- 8. Identical twins
- 9. A type of study that provides evidence for the role of genetics in OCD
- 10. Low levels of this neurotransmitter may be associated with OCD
Down
- 1. A type of biological explanation of OCD that is concerned with genes
- 3. A type of biological explanation of that is concerned with neurotransmitters and brain structures
- 4. Non identical twins
- 5. OCD may be the result of genes and the environment
- 7. Several genes are likely to be involved