Log rules in Wireless Debug logging mode.

Who can tell me what the different types of rules do in the Log rules of de Wireless logging mode? The RouterOS reference manual doesn´t seem to mention this option at all (I can´t find it) and de WiKi is very limited.
Searched this forum for relating treads but no succes so far.

I want to know what all the different ´topics´ mean in the log rules.
Some examples:
info
warning
error
critical
debug
packet
etc
etc