Tunnel vision (metaphor)
Tunnel vision metaphorically denotes the reluctance to consider alternatives to one's preferred line of thought; instances include physicians treating patients, detectives considering crime suspects, or anyone predisposed to a favored outcome. The common way to solve this problem is a second opinion, that is, getting somebody unrelated to the original investigation to look at it from the beginning, without the same biases and preconceptions. This is generally due to bias from preceding incidents. One key example of "tunnel vision" is racial profiling in the United States.
- "Merriam Webster dictionary". Retrieved 27 April 2016.
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