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. Author manuscript; available in PMC: 2015 Jan 1.
Published in final edited form as: J Exp Psychol Learn Mem Cogn. 2013 Aug 19;40(1):66–85. doi: 10.1037/a0034059

Figure 4.

Figure 4

Continuous Dual Process Model Mapping of Recollection and Familiarity to Confidence. A sample of 200 total target strengths were generated by summing random samples drawn from normal distributions representing a familiarity channel (μ = 0.8 and σ = 1) and recollection channel (μ = 1.0 and σ = 1.4). The separate Recollection (gray) and Familiarity (black) values are plotted against the y-axis and are then summed to represent the total recognition strength (x-axis). The vertical lines are illustrative confidence criterion and the ellipses are 95% confidence regions around the Recollection and Familiarity channel target values. Due to the highly overlapping Recollection and Familiarity values across low, medium, and high confidence old reports, this model is unlikely to give rise to our obtained Support Vector Machine results of high sensitivity and specificity for high vs. medium confidence hit classification.