EYEWITNESS TESTIMONY
EYEWITNESS TESTIMONY
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DOI:
10.1038/scientificamerican1274-23
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发表时间:
1974-01-01
影响因子:
3
通讯作者:
BUCKHOUT, R
中科院分区:
文献类型:
--
作者:
BUCKHOUT, R
Perhaps she has, but she may be wrong. Eyewitness testimony is unreli able. Research and courtroom experi ence provide ample evidence that an eyewitness to a crime is being asked to be something and do something that a normal human being was not created to be or do. Human perception is sloppy by Robert Buckhout and uneven, albeit remarkably effective in serving our need to create structure out of experience. In an investigation or in court, however, a witness is often asked to play the role of a kind of tape recorder on whose tape the events of the crime have left an impression. The pros ecution probes for stored facts and scenes and tries to establish that the wit ness's recording equipment was and still is in perfect running order. The defense cross-examines the witness to show that there are defects in the recorder and gaps in the tape. Both sides, and usually the witness too, succumb to the fallacy that everything was recorded and can be played back later through questioning. Those of us who have done research in eyewitness identificat. ion reject that fallacy. It reflects a 19th-century view of man as perceiver, which asserted a paral lel between the mechanisms of the physi cal world and those of the brain. Human perception is a more complex informa tion-processing mechanism. So is mem ory. The person who sees an accident or witnesses a crime and is then asked to describe what he saw cannot call up an" instant replay." He must depend on his memory, with all its limitations. The limitations may be unimportant in ordi nary daily activities. If someone is a little