Effects Of Eyewitness Testimony

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Despite seemingly confident, eyewitness testimony may not be as reliable as is commonly believed; oftentimes perception and attention work on the memory to create inaccurate recollection. The cognitive processes of perception and attention in turn, affect the cognitive process of memory, often influencing the resulting accuracy. Many people equate the confidence level of eyewitness statements as unwavering evidence, yet there are factors that make this a fallacy. Testimony of events after the fact, are often prone to a variety of errors. “Confidence” of a witness does not always equate to “veracity”.
Perception as a cognitive function incorporates external sensory input with internal knowledge gained from experience. In the act of perceiving, …show more content…

When we see something incomplete, our brains will complete the picture for us; this is not always infallible. Items held in working memory typically last thirty seconds if not used and then are discarded, leaving many details about a time and place lost to recall. Additionally, memory accuracy has been shown to wane during times of witnessing aggression and violence in media (and likely so in real life.) The level of processing being performed can affect memory as well. Shallow, sensory processing has been shown to be less reliable than processing that is deep and meaningful (Matlin, …show more content…

Jurors, with no better information to go on, are more compelled by witness testimony if the eyewitness seems certain. In most studies, the correlation between eyewitness confidence and eyewitness accuracy is poor (Matlin, 2013). Most eyewitnesses are strongly confident in their memories, even when they are not based entirely on actual recall. This translates to jurors equating that displayed confidence as an accurate gauge of validity and form their decisions accordingly. The more confident the eyewitness, the more assured the juror is, and subsequently has more confidence in the testimony. Some people believe the eyewitness testimony of one individual should be enough to convict and sentence

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