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  2. en.wikipedia.org › wiki › Summation_(neurophysiology)Summation (neurophysiology) - Wikipedia

    Spatial summation is a mechanism of eliciting an action potential in a neuron with input from multiple presynaptic cells. It is the algebraic summing of potentials from different areas of input, usually on the dendrites .

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  4. www.sciencedirect.com › spatial-summationSpatial Summation - an overview | ScienceDirect Topics

    Spatial summation. Spatial summation occurs when stimuli are applied at the same time, but in different areas, with a cumulative effect upon membrane potential. Spatial summation uses multiple synapses acting simultaneously. Each synapse brings sodium ions over the postsynaptic membrane, to cause a graded potential with localized effects.

  5. uen.pressbooks.pub › introneuro › chapterSpatial and Temporal Summation – Introduction to Neuroscience

    Imagine what happens to each of the PSPs shown as they travel over distance, or as time passes. The closer a postsynaptic potential is to the decision point, the greater the influence it has on the eventual decision being made. This concept is called spatial summation.

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  7. bio.libretexts.org › Bookshelves › Introductory_and35.7: How Neurons Communicate - Signal Summation

    Oct 31, 2023 · Spatial summation means that the effects of impulses received at different places on the neuron add up so that the neuron may fire when such impulses are received simultaneously, even if each impulse on its own would not be sufficient to cause firing.

  8. open.oregonstate.education › aandp › chapter12.4 Communication Between Neurons – Anatomy & Physiology

    Summation can be spatial or temporal, meaning it can be the result of multiple graded potentials occurring simultaneously at different locations on the neuron (spatial), or all at the same place but in rapid succession (temporal). Spatial and temporal summation can act together, as well.

    • Lindsay M. Biga, Sierra Dawson, Amy Harwell, Robin Hopkins, Joel Kaufmann, Mike LeMaster, Philip Mat...
    • 2019
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  9. openstax.org › 12-5-communication-between-neurons12.5 Communication Between Neurons - OpenStax

    Summation can be spatial or temporal, meaning it can be the result of multiple graded potentials at different locations on the neuron, or all at the same place but separated in time. Spatial summation is related to associating the activity of multiple inputs to a neuron with each other.

  10. www.nature.com › articles › nature11526A neural circuit for spatial summation in visual cortex | Nature

    Oct 10, 2012 · Neuron-type-specific spatial summation. We determined the tuning to the size of a visual stimulus for neurons in the superficial layers of the primary visual cortex (V1; depth ∼ 100–350...

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