Neurotransmitters
Which neurotransmitter has a different structure?
Acetylcholine
Define neuromodulators
Chemical that alter responses of local neurons
Four types of neuronal circuits
Converging, diverging, reverberating, parallel-after-discharge
What are the two types of biogenic amines?
Catecholamines (dopamine) and Indolamines (seratonin)
Modulation that causes greater response in postsynaptic neuron
Facilitation
Spreads information from one presynaptic neuron to several postsynaptic neurons
Diverging circuit
Which acids include common transmitters glutamate, glycine, GABA?
Amino acids
Modulation that causes weaker response
Inhibition
Use feedback to produce repeated, cyclical activity
Reverberating
Chains of amino acids, including endorphins, substance P
Neuropeptides
What can be both a neurotransmitter and a modulator?
Nitric oxide
Input transmitted simultaneously along several paths to a postsynaptic cell
Parallel after discharge
Excitatory transmitters cause _____; inhibitory transmitters cause _____
EPSP and IPSP
What has the same influence as marijuana?
Endocannabinoids
Input converges at a single postsynaptic neuron
Converging