Koop Gregory J, Criss Amy H
Department of Psychology, Syracuse University.
J Exp Psychol Learn Mem Cogn. 2016 May;42(5):671-85. doi: 10.1037/xlm0000202. Epub 2015 Nov 23.
Advances in theories of memory are hampered by insufficient metrics for measuring memory. The goal of this paper is to further the development of model-independent, sensitive empirical measures of the recognition decision process. We evaluate whether metrics from continuous mouse tracking, or response dynamics, uniquely identify response bias and mnemonic evidence, and demonstrate 1 application of these metrics to the strength-based mirror-effect paradigm. In 4 studies, we show that response dynamics can augment our current analytic repertoire in a way that speaks to the psychological mechanisms underlying recognition memory. We manipulated familiarity and response bias via encoding strength and the proportion of targets at test (Experiment 1) and found that the initial degree of deviation of the mouse movement toward a response is a robust indicator of response bias. In order to better isolate measures of memory strength, we next minimized response bias through the use of 2-alternative forced-choice tests (Experiments 2 and 3). Changes in the direction of movement along the x-axis provided an indication of encoding strength. We conclude by applying these metrics to the typical strength-based mirror effect design (Experiment 4) in an attempt to further discriminate between differentiation and criterion-shift accounts. (PsycINFO Database Record
记忆理论的进展受到测量记忆的指标不足的阻碍。本文的目的是进一步发展独立于模型的、对识别决策过程敏感的实证测量方法。我们评估连续鼠标追踪或反应动态指标是否能唯一地识别反应偏差和记忆证据，并展示这些指标在基于强度的镜像效应范式中的一种应用。在四项研究中，我们表明反应动态可以以一种与识别记忆背后的心理机制相关的方式扩展我们当前的分析方法。我们通过编码强度和测试中目标的比例来操纵熟悉度和反应偏差（实验1），发现鼠标向反应方向移动的初始偏差程度是反应偏差的有力指标。为了更好地分离记忆强度的测量方法，我们接下来通过使用二选一强制选择测试（实验2和3）来最小化反应偏差。沿x轴运动方向的变化表明了编码强度。我们通过将这些指标应用于典型的基于强度的镜像效应设计（实验4）来得出结论，试图进一步区分辨别和标准转移解释。（PsycINFO数据库记录）
