Centre for Addictive Behaviours Research, Division of Psychology, London South Bank University, 103, Borough Road, London, SE1 0AA, UK.
Division of Psychology and Forensic Science, Abertay University, Dundee, UK.
Psychopharmacology (Berl). 2021 Jun;238(6):1485-1493. doi: 10.1007/s00213-021-05776-0. Epub 2021 Feb 10.
Co-witness discussion is common and often witnesses are under the influence of alcohol. As such, it is important to understand how such factors may influence eyewitness testimony.
We combined a co-witness memory paradigm with an alcohol administration paradigm to examine the influence of alcohol and dyadic discussion on remembering a mock crime.
Intoxicated and sober dyads discussed a previously seen video, whilst in a control condition sober and intoxicated individuals recalled the event on their own. Unknown to the dyads, each discussion partner saw a different version of the video including unique details not present in the other video version. All participants then engaged in a second individual recall attempt.
Dyads were more likely to recall misleading details in their individual recall attempts compared to the control group. Intoxicated and sober dyads were equally likely to report misleading information. Alcohol intoxication had no negative impact on individuals' ability to correctly identify the source of their responses. Intoxicated participants recalled fewer details under free recall conditions. Alcohol had a detrimental effect on participants' confidence in their free recall accounts.
Possible alcohol-related and social-cognitive mechanisms are discussed which may contribute to the current findings as well as applied implications for interviewing intoxicated witnesses.
共同见证者讨论很常见，且经常有证人处于饮酒状态。因此，了解这些因素如何影响目击者的证词非常重要。
我们将共同见证者记忆范式与酒精给药范式相结合，以检查酒精和对偶讨论对模拟犯罪记忆的影响。
醉酒和清醒的对偶组讨论之前看过的视频，而在对照条件下，清醒和醉酒的个体独自回忆事件。不知道对偶组，每个讨论伙伴看到的视频版本不同，包括其他视频版本中没有的独特细节。然后，所有参与者都进行了第二次单独的回忆尝试。
与对照组相比，对偶组在单独回忆尝试中更有可能回忆出误导性细节。醉酒和清醒的对偶组同样有可能报告误导性信息。酒精中毒对个体正确识别其反应来源的能力没有负面影响。醉酒参与者在自由回忆条件下回忆的细节较少。酒精对参与者对自由回忆的信心产生了不利影响。
讨论了可能与酒精相关的和社会认知的机制，这些机制可能导致当前的发现，以及对询问醉酒证人的应用影响。
