Synapses and neurotransmitters
- Created by: 11pyoung
- Created on: 14-04-17 11:41
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- Synapses and Neurtransmitters
- Synapses
- Parts of the Synapse
- Vesicle
- Neurotransmitters
- Re-uptake port
- receptors
- Post-synaptic membrane
- Synaptic knob
- Types of Synapse
- Excitatory
- Makes something happen
- Form action potential in the second nerve
- Inhibitory
- Stops something happening
- Switch off second nerve
- Excitatory
- Parts of the Synapse
- Neurotransmitters
- Excitatory
- Dopamine
- Brain
- Serotonin
- Brain
- Acetylcoline
- Peripheral nervous system
- Spinal cord to muscles
- Peripheral nervous system
- Dopamine
- Inhibitory
- GABA
- Brain
- GABA
- Evaluation
- Strengths
- PET scanning by Jovanovic
- Investigated serotonin in women
- Low levels associated with depression more in women
- Found differences in the synaptice receptors related to serotonin of women with premenstrual dysphoric disorder (PMDD)
- Suggests the role of serotonin in the disorder
- Shows the role of neurotransmitters in affecting people's emotions and behaviour
- Shows the role of neurotransmitters in affecting people's emotions and behaviour
- Suggests the role of serotonin in the disorder
- Investigated serotonin in women
- Human brain scans are a positive as humans, not animals are tested
- It has scientific credibility as more than one person can check the result, leading to high reliability
- PET scanning by Jovanovic
- Weaknesses
- Allen and Stevens
- Found less than half the neurotransmitters in synapses in the hippocampus arrived from the presynaptic membrane
- Shows synaptic transmission is not straightforward and may not be involved in behaviour as first thought
- Found less than half the neurotransmitters in synapses in the hippocampus arrived from the presynaptic membrane
- Most evidence comes from animal lesion studies
- Leads to generalisability issues as generalising from animals to humans might not be credible and may lack population validity
- Allen and Stevens
- Strengths
- Excitatory
- Synapses
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