Institute for Integrative Medicine, University of Witten/Herdecke, Herdecke, Germany.
Department of Organic Farming and Cropping Systems, University of Kassel, Witzenhausen, Germany.
PLoS One. 2021 Mar 15;16(3):e0248124. doi: 10.1371/journal.pone.0248124. eCollection 2021.
There is an increasing interest in a systemic approach to food quality. From this perspective, the copper chloride crystallization method is an interesting asset as it enables an estimation of a sample's 'resilience' in response to controlled degradation. In previous studies, we showed that an ISO-standardized visual evaluation panel could correctly rank crystallization images of diverse agricultural products according to their degree of induced degradation. In this paper we examined the role of contextual sensitivity herein, with the aim to further improve the visual evaluation. To this end, we compared subjects' performance in ranking tests, while primed according to two perceptional strategies (levels: analytical vs. kinesthetic engagement), according to a within-subject design. The ranking test consisted out of wheat and rocket lettuce crystallization images, exhibiting four levels of induced degradation. The perceptual strategy imbuing kinesthetic engagement improved the performance of the ranking test in both samples tested. To the best of our knowledge, this is the first report on the training and application of such a perceptual strategy in visual evaluation.
人们越来越关注食品质量的系统性方法。从这个角度来看，氯化铜结晶法是一种很有趣的方法，因为它可以估计样品对受控降解的“弹性”。在之前的研究中，我们表明，一个经过 ISO 标准化的视觉评估小组可以根据不同农产品的诱导降解程度正确地对结晶图像进行排序。在本文中，我们研究了上下文敏感性在此处的作用，旨在进一步改进视觉评估。为此，我们根据两个感知策略（水平：分析与动觉参与），在被试者中进行了比较，根据被试内设计进行了排名测试。排名测试由小麦和火箭生菜结晶图像组成，表现出四个不同的诱导降解水平。在这两种测试样本中，赋予动觉参与的感知策略都提高了排名测试的性能。据我们所知，这是首次在视觉评估中报告这种感知策略的训练和应用。
