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10 Cards in this Set
- Front
- Back
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Neurotransmitter implicated in Parkinson’s |
Dopamine (low lvls) |
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Neurotransmitter implicated in depression |
Serotonin (low lvls) |
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What causes disorders |
Imbalance in neurotransmitters |
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What are neurotransmitters |
Chemicals that transmit impulses across synapses |
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What are symptoms of Parkinson’s disease (minimum 2) |
Poor motor skills e.g. tremors (shaking), slow movement, stiff muscles, poor balance, walking problems |
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What drug treats people with Parkinson’s disease? What is the purpose of these? |
L dopa > increases lvls of dopamine |
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What causes depression |
1) low lvl of serotonin 2) nerve impulses across synapses in parts of the brain that control mood |
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What drug treats people with depression? What is the purpose of this? |
Antidepressant drugs e.g. SSRIs ^ lvl of serotonin |
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L dopa |
1) absorbed by the brain & converted into dopamine by enzyme dopa-decarboxylase 2) ^ lvl of dopamine in the brain 3) ^ nerve impulses transmitted across synapses in part of brain controlling movement (motor/frontal cortex) 4) sufferers of Parkinson’s has ^ control over their movement |
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MDMA (Ecstacy) |
1) ^ lvl of serotonin by inhibiting the reuptake of serotonin into presynaptic neurones 2) triggers the release of serotonin from presynaptic neurones 3) so ^ serotonin in the synaptic cleft 4) causes depolarisation of the postsynaptic neurones in parts of the brain that control mood 5) effect of MDMA is to elevate mood |
