Detonation is MORE likely to lead to pre-ignition than pre-ignition leading to detonation, but it does also go the other way sometimes!
The fact is, that you often wouldn't notice it as the engine has just eaten itself due to pre-ignition!
Pre-ignition is classified as anything that causes the mixture to ignite before the spark goes off, this usually around 20 deg BTDC and peak pressure being at 14 deg ATDC.
If the mixture ignites before the spark plug fires, then it is pre-ignition. Detonation is usually the "end gas" from a normal burn exploding due to lack of octane and causing a pressure spike.(one that doesn't last that long)
This "end gas" could for instance be ignited by a hot spot on something like a hot exhaust valve, so the hotter the engine, the hotter the end gas, the more likely it is to detonate and as you get detonation, you get more heat, so the cyle continues until something breaks.