Tunnel vision (metaphor)

Tunnel vision metaphorically denotes a collection of common heuristics and logical fallacies that lead individuals to focus on cues that are consistent with their opinion and filter out cues that are inconsistent with their viewpoint. It is a phenomenon mostly widely observed and researched in the field of criminology due to its prevalence and dangerous potential to create incorrect convictions. Tunnel vision is also related to confirmation bias. Confirmation bias is over-reliance on external sources that may be inaccurate yet supports an individual’s opinion, whereas tunnel vision is over-reliance on internal information whilst ignoring correct external information.

This article is about a metaphorical characterization of narrow-mindedness. For the physical condition, see Tunnel vision.

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.

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