Differences Between Temporal and Spatial Summation

The main difference between temporal and spatial summation is that temporal summation occurs when one presynaptic neuron releases neurotransmitters over a period of time to fire an action potential whereas spatial summation occurs when multiple presynaptic neurons release neurotransmitters together to fire an action ...

1. What is the difference between temporal and spatial summation quizlet?
2. What is an example of temporal summation?
3. Which is an example of spatial summation?
4. What is meant by spatial summation?
5. Can temporal and spatial summation occur simultaneously?
6. Which is a similarity between spatial summation and temporal summation?
7. What is the difference between temporal and spatial?
8. Which best describes temporal summation?
9. What is the mechanism of temporal summation?
10. What is the importance of spatial and temporal summation?
11. What causes EPSPs and IPSPs?
12. What change in a neuron is being measured in the graph?

What is the difference between temporal and spatial summation quizlet?

Temporal summation occurs when a single pre-synaptic neuron fires many times in succession, causing the post-synaptic neuron to reach its threshold and fire. Spatial summation occurs when excitatory potentials from many different pre-synaptic neurons cause the post-synaptic neuron to reach its threshold and fire.

What is an example of temporal summation?

Temporal summation can be illustrated by firing action potentials in a presynaptic neuron and monitoring the resultant EPSPs. For example, in Figs. 16.14A and 16.14B, a single action potential in sensory neuron 1 produces a 1-mV EPSP in the motor neuron. ... This summation is strictly a passive property of the cell.

Which is an example of spatial summation?

The animation to the left is another example of spatial summation. When the letters are big, the stripes of different color are easily discriminated and the differences in color stay distinct. The "H" is red and green, the "I" is red and blue and the "!" is green and blue.

What is meant by spatial summation?

Definition. Spatial summation is when progressively larger numbers of primary afferent (presynaptic) neurons are activated simultaneously, until sufficient neurotransmitter is released to activate an action potential in the spinal cord (postsynaptic) neuron.

Can temporal and spatial summation occur simultaneously?

Temporal and spatial summation can occur simultaneously, and may involve both IPSPs and EPSPs. allowing the post-synaptic neuron to act as an information processor (an 'integrator').

Which is a similarity between spatial summation and temporal summation?

The main difference between temporal and spatial summation is that temporal summation occurs when one presynaptic neuron releases neurotransmitters over a period of time to fire an action potential whereas spatial summation occurs when multiple presynaptic neurons release neurotransmitters together to fire an action ...

What is the difference between temporal and spatial?

Spatial refers to space. Temporal refers to time. ... It describes a phenomenon in a certain location and time — for example, shipping movements across a geographic area over time (see above example image).

Which best describes temporal summation?

Which best describes temporal summation? Two synapses on different regions of a cell are stimulated at the same time. The density of receptors in a receptive field is usually greatest in the periphery of the field.

What is the mechanism of temporal summation?

a neural mechanism in which an impulse is propagated by two successive postsynaptic potentials (PSPs), neither of which alone is of sufficient intensity to cause a response.

What is the importance of spatial and temporal summation?

Summation, which includes both spatial and temporal summation, is the process that determines whether or not an action potential will be generated by the combined effects of excitatory and inhibitory signals, both from multiple simultaneous inputs (spatial summation), and from repeated inputs (temporal summation).

What causes EPSPs and IPSPs?

An EPSP is received when an excitatory presynaptic cell, connected to the dendrite, fires an action potential. ... An inhibitory postsynaptic potentials (IPSP) is a temporary hyperpolarization of postsynaptic membrane caused by the flow of negatively charged ions into the postsynaptic cell.

What change in a neuron is being measured in the graph?

What change in a neuron is being measured in the graph? The voltage measured across the axon membrane at a specific point as an action potential travels past.