“…Although incidental handling might be expected to reduce TI durations (Ratner & Thompson, 1960), Nash and Gallup (1976) have shown that it is the TI-induction procedure that is most important in reduction of TI durations from habituation. In addition, Tortora and Borchelt (1972) have found that escape responses elicited prior to testing for TI will prolong the response. One might expect the stress of the chase to both produce larger adrenals and prolong TI durations.…”