Heath Wendy P, Grannemann Bruce D
University of Texas-Southwestern Medical Center, Department of Psychiatry.
Behav Sci Law. 2014 Jul-Aug;32(4):496-507. doi: 10.1002/bsl.2120. Epub 2014 Apr 8.
Courtroom video presentations can range from images on small screens installed in the jury box to images on courtroom video monitors or projection screens. Does video image size affect jurors' perceptions of information presented during trials? To investigate this we manipulated video image size as well as defendant emotion level presented during testimony (low, moderate), the defendant-victim relationship (spouses, strangers), and the strength of the evidence (weak, strong). Participants (N=263) read a case and trial summary, watched video of defendant testimony, and then answered a questionnaire. Larger screens generally accentuated what was presented (e.g., made stronger evidence seem stronger and weaker evidence seem weaker), acting mainly upon trial outcome variables (e.g., verdict). Non-trial outcomes (e.g., defendant credibility) were generally affected by defendant emotion level and the defendant-victim relationship. Researchers and attorneys presenting video images need to recognize that respondents may evaluate videotaped trial evidence differently as a function of how video evidence is presented.
法庭视频展示的范围可以从安装在陪审席的小屏幕上的图像到法庭视频监视器或投影屏幕上的图像。视频图像大小会影响陪审员对审判期间所呈现信息的认知吗？为了对此进行调查，我们操纵了视频图像大小以及证人作证期间呈现的被告情绪水平（低、中等）、被告与受害者的关系（配偶、陌生人）以及证据的力度（弱、强）。参与者（N = 263）阅读了一个案件及审判摘要，观看了被告作证的视频，然后回答了一份问卷。较大的屏幕通常会突出所呈现的内容（例如，使有力的证据看起来更有力，薄弱的证据看起来更薄弱），主要作用于审判结果变量（例如，裁决）。非审判结果（例如，被告的可信度）通常受被告情绪水平和被告与受害者关系的影响。展示视频图像的研究人员和律师需要认识到，受访者可能会根据视频证据的呈现方式对录像审判证据进行不同的评估。
