12. The method of claim 1 , wherein said presenting comprises conveying the stimulus information as part of a challenge-response authentication task.
1. A method for using grounded linguistic data, comprising: generating stimulus information having at least one stimulus component selected from an inventory of available stimulus components; presenting the stimulus information to a plurality of human recipients; receiving, from each human recipient, a linguistic description of the stimulus information, a plurality of received linguistic descriptions collectively comprising linguistic information expressed in one or more languages; storing the linguistic information in a data store, there being a nexus between the linguistic information and said at least one stimulus component that forms a part of the stimulus information, there being an additional nexus between each stimulus component and a feature of a target environment; detecting an event, the event constituting the feature of the target environment; determining whether the event is associated with an instance of the linguistic information; and performing, by one or more processing devices, an operation using the instance of the linguistic information, providing that said determining is answered in the affirmative.