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6 Cards in this Set
- Front
- Back
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Excitatory Neurotransmitters (+ examples) |
Acetylcholine and Noradrenaline Increase the likelihood that an Excitatory signal is sent to the post Synaptic cell, more likely to fire |
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Inhibitory Neurotransmitters (+ examples) |
Serotonin and GABA Decrease the likelihood of that neuron firing. Responsible for calming the mind and body, inducing sleep/ filtering out unnecessary signals |
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Excitatory Post-Synaptic Potential (EPSP) |
Binds w/ a post Synaptic receptor which causes an electrical charge |
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Inhibitory Post-Synaptic Potential (IPSP) |
Binds w/ a post Synaptic receptor which makes it less likely that the cell will fire |
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What determines the likelihood of a cell firing? |
Adds up Excitatory and Inhibitory Synaptic input The net result of this summation determines whether or not the cell fires |
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Two way which the strength of EPSP be increased? |
1. Spatial Summation - Large number of EPSPs are generated at many different synapses on the post Synaptic neuron at the same time 2. Temporal Summation - Large number EPSPa are generated at the same time by a series of high frequency actions potentials on the presynaptic neuron |
