Note: E.g., inside data processing, the response time perceived by the end user is the interval between Around a information rules, a system response instance is the interval between the receipt of the prevent of transmission of an inquiry message and a beginning of the transmission of the response message to the station originating the inquiry.

Source: from either Federal Standard 1037C and from MIL-STD-188

Response Instance is an attribute that applies to LCD monitors. It translates to the total of instance it hold the liquid crystal cell to last from either active (black) to inactive (white) & back to active (black) over again. These are measured within milliseconds (ms). Moo totals mean sooner transitions & so less seeable image artefact.