0
How can decision-making in the CNS result from the interaction between the activities of excitatory and inhibitory presynaptic neurons at synapses?
Wiki User
∙ 9y ago
During decision-making, information is processed to choose between two or more alternatives. This involves the interaction of excitatory and inhibitory neurons. This process also involves excitatory and inhibitory neurotransmitters. The post-synaptic action potential is determined by the sum of all signals.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
What is the difference between EPSP and an IPSP?
An EPSP is an excitatory postsynaptic potential, which represent input coming from excitatory cells, whereas an inhibitory postsynaptic potential represents input driven by inhibitory presynaptic cells.
What is the action of dopamine on the postsynaptic membrane?
All neurotransmitters have an effect on the post synaptic membrane of either inhibition or excitation. Dopamine is an Excitatory NT so if a Excitatory Neuron meets with another Excitatory Neuron it creates Excitation. However if it meets with an Inhibitory Neuron Dopamine and the other Excitatory NT's wll only create Inhibition. Only GABA and Glycine are considered Inhhibitory NTransmitters.
What determines if an action potential is initiated in the postsynaptic neuron?
Every time neurotransmitter is released from the presynaptic neuron it generates an excitatory post synaptic potential(EPSP) in the postsynaptic neuron. When the EPSP is greater than the threshold for excitation an action potential is generated.
What are the excitatory neurotranmitters?
Glutamic acid (glutamate) is probably the most abundant excitatory transmitter. Others can be excitatory, such as acetylcholine, and some peptides. Aspartate is also excitatory. Finally, serotonin is often found to be exctitatory.
What is excitatory messages?
There are two kinds of neurotransmitters - INHIBITORY and EXCITATORY. Excitatory neurotransmitters are not necessarily exciting - they are what stimulate the brain. Those that calm the brain and help create balance are called inhibitory. Inhibitory neurotransmitters balance mood and are easily depleted when the excitatory neurotransmitters are overactive.
What factor decreases the excitatory level of the spinal cord?
Fatigue decreases the excitatory level of the spinal cord
What neurotransmitter is always excitatory?
Glutamate is the primary excitatory neurotransmitter in the central nervous system. It enhances the transmission of signals between neurons by promoting the depolarization of postsynaptic neurons.
If a neurotransmitter depolarizes the postsynaptic membrane it is referred to as?
Excitatory
What causes the receiving cell the fire?
Excitatory neurotransmitter
What factor decreases the excitatory level of the muscles?
fatigue
Is serotonin excitatory or inhibtory?
It's mainly inhibitory
Do all excitatory neurotransmitters have the same effect on organs?
no
