Novelty monitoring, metacognition, and control in a composite holographic associative recall model: implications for Korsakoff amnesia.
This article stems from a technical problem in composite-trace distributed models of human memory and particularly in the Composite Holographic Associative Recall Memory (CHARM) model. Briefly, the composite trace--used as a central construct in such models--can become catastrophically out of control. To solve the problem, a prestorage novelty-familiarity monitor and a simple control procedure need to be implemented. Eight lines of experimental evidence converge on the idea that output from such a novelty-familiarity monitor underlies people's metacognitive judgments of feeling of knowing. Breakdown of the monitoring-control mechanism produces Korsakoff-like symptoms in the model. Impairments in feeling-of-knowing judgments and the failure to release from proactive inhibition, both characteristic of Korsakoff amnesia, are thus attributed to a monitoring-control failure rather than to deficits in the basic memory system.
Metcalfe
J
J
Department of Psychology, Dartmouth College, Hanover, New Hampshire 03755.
D000425:Alcohol Amnestic Disorder / Q000523:psychology*; D001245:Association Learning; D001288:Attention; D003198:Computer Simulation; D006801:Humans; D011939:Mental Recall; D011334:Proactive Inhibition; D011340:Problem Solving; D011930:Reaction Time