Drug-Sniffing Dog Performance Massively Affected by Handlers' Beliefs
A new study by researchers at UC Davis has found that drug-sniffing dog/handler teams' performance is affected by human handlers' beliefs, possibly in response to subtle, unintentional handler cues. The study found that detection-dog/handler teams erroneously 'alerted,' or identified a scent, when there was no scent present more than 200 times-particularly when the handler believed that there was scent present.
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