Impact Of Gruesome

Abstract

Two experiments were conducted to investigate the effects of gruesome evidence on mock jurors’ decisions in a simulated capital trial. The first experiment was designed as a replication and extension of Douglas, Lyon, and Ogloff (1997), who found that mock jurors who were presented with gruesome photographic evidence were nearly twice as likely to convict the defendant than participants who did not see the gruesome evidence. In Experiment 1, gruesome evidence was manipulated in two ways: photographic evidence (low gruesome, highly gruesome, or control photographs) and verbal testimony (low gruesome vs. highly gruesome). Neither photographic evidence nor testimony had an effect on mock jurors verdicts or sentence decisions. However, the manipulation check failed to indicate that participants perceived the evidence differently in terms of gruesomeness. Experiment 2 was designed to address whether inducing specific emotions in participants would produce similar biasing effects on their decisions as gruesome evidence. Previous research has eluded to emotional arousal as a potential mediator of