Atraso sináptico
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
~0.5ms + dist/200
About this calculator
The synaptic delay calculator estimates the time it takes for a nerve impulse to travel between neurons. Typical delays range from 0.5 to 2 milliseconds, depending on the distance and transmission speed. The formula used is ~0.5 ms (base delay) plus distance divided by 200 (average transmission speed).
It is useful in neuroscience studies, signal transmission analysis, or reflex arc timing. For example, calculating response times in reflex arcs or predicting delays in complex neural circuits. The calculation requires measuring neuron distance in millimeters, assuming constant transmission speed between synapses.
Cautions: delays can vary based on synapse type (electrical vs. chemical), body temperature, and physiological conditions. The formula is a general approximation; specific cases may require adjustments. Do not use for direct (electrical) synapses, where delay is nearly zero.
Frequently asked questions
What causes synaptic delay?
The delay occurs due to the time required for neurotransmitters to cross the synaptic cleft and activate receptors on the next neuron. Chemical synapses have greater delay than electrical synapses.
How does temperature affect delay?
Lower temperatures slow neurotransmitter release, increasing synaptic delay. This is common in hypothermia or neurological injuries.
Why use 200 in the formula?
The 200 represents an average synaptic transmission speed in mm/ms, based on studies of sensory neurons. It varies depending on neuron type.
Does this tool account for myelination?
No. The formula does not include axon conduction speed, only synaptic delay. Myelination affects impulse speed, not synaptic delay.