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  2. Summation (neurophysiology) - Wikipedia

    en.wikipedia.org/wiki/Summation_(neurophysiology)

    Summation, which includes both spatial summation 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).

  3. Synaptic potential - Wikipedia

    en.wikipedia.org/wiki/Synaptic_potential

    The two ways that synaptic potentials can add up to potentially form an action potential are spatial summation and temporal summation. [5] Spatial summation refers to several excitatory stimuli from different synapses converging on the same postsynaptic neuron at the same time to reach the threshold needed to reach an action potential.

  4. Coincidence detection in neurobiology - Wikipedia

    en.wikipedia.org/wiki/Coincidence_detection_in...

    Fig. 1: Spatial and temporal summation. Two EPSPs innervated in rapid succession sum to produce a larger EPSP, or an action potential in the postsynaptic cell. Coincidence detection relies on separate inputs converging on a common target.

  5. Excitatory synapse - Wikipedia

    en.wikipedia.org/wiki/Excitatory_synapse

    Therefore, in order to achieve threshold and generate an action potential, the postsynaptic neuron has the capacity to add up all of the incoming EPSPs based on the mechanism of summation, which can occur in time and space. Temporal summation occurs when a particular synapse is stimulated at a high frequency, which causes the postsynaptic ...

  6. A Logical Calculus of the Ideas Immanent in Nervous Activity

    en.wikipedia.org/wiki/A_logical_calculus_of_the...

    "A Logical Calculus of the Ideas Immanent to Nervous Activity" is a 1943 article written by Warren McCulloch and Walter Pitts. [1] The paper, published in the journal The Bulletin of Mathematical Biophysics, proposed a mathematical model of the nervous system as a network of simple logical elements, later known as artificial neurons, or McCulloch-Pitts neurons.

  7. Electrotonic potential - Wikipedia

    en.wikipedia.org/wiki/Electrotonic_potential

    Electrotonic potentials can sum spatially or temporally. Spatial summation is the combination of multiple sources of ion influx (multiple channels within a dendrite, or channels within multiple dendrites), whereas temporal summation is a gradual increase in overall charge due to repeated influxes in the same location. Because the ionic charge ...

  8. Neurotransmission - Wikipedia

    en.wikipedia.org/wiki/Neurotransmission

    Summation is the adding together of these impulses at the axon hillock. If the neuron only gets excitatory impulses, it will generate an action potential. If the neuron only gets excitatory impulses, it will generate an action potential.

  9. Biological neuron model - Wikipedia

    en.wikipedia.org/wiki/Biological_neuron_model

    The detection scheme is similar to a radar-like "energy detection" because it includes signal squaring, temporal summation, and a threshold switch mechanism, just like the energy detector, but it also includes a unit that emphasizes stimulus edges and a variable memory length (variable memory).