<prompt> True about summation is?Temporal summation is the application of 2 stimulitogetherSpatial summation is the application of two stimuli oneafter anotherSubthreshold stimuli are usedAll are true  <response>: Subthreshold stimuli are used.SummationA subthreshold stimulus does not produce a response, but when more than one subthreshold stimuli are applied in response is produced.The application of two subthreshold stimuli may be sufficiently quickly, one by another temporal summation or two subthreshold stimuli together at different placesSpatial summation.The summation is due summation of EpsP in synapses at post-synaptic neuron. 