The Quantitative Measurement of Explicit and Implicit Memory and its Application to an Aging Population.
Sloboda, Lara.
2017-04-18T14:04:00.741Z
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Abstract: A new model was developed to measure separately the influence of the fundamental memory states of explicit memory, implicit memory, fractional storage and non-storage, called the Implicit Explicit Separation (IES) model. The IES was used in five experiments to analyze the dynamics of the fundamental memory types over various retention intervals in younger and older adults. The storage va... read morelues from the IES model were fit to an existing memory model, the Two-Trace Hazard Model, which estimates the rate of memory loss in the retention interval. The results indicate that explicit memory degrades at a rate faster than implicit memory in younger adults. While explicit memory degrades at a similar rate in older adults as younger adults, implicit memory rises in the short term, and then remains stable in older adults. The rate parameters in the Two-Trace Hazard Model indicate that memory loss in older adults is much faster in the seconds immediately following item presentation than younger adults. Finally, in younger adults, very short term implicit memory increases to a point and then decreases across the retention interval, indicating that implicit storage is rising as a direct result of the degrading explicit storage system, supporting a single-memory system. Further, when these data are analyzed through a hazard function analysis, the conjunction of the two memory traces was peaked-shaped supporting the basis of the Two-Trace Hazard Model.
Thesis (Ph.D.)--Tufts University, 2012.
Submitted to the Dept. of Psychology.
Advisor: Richard Chechile.
Committee: Ayanna Thomas, Robert Cook, and Jessica Chamberland.
Keyword: Cognitive psychology.read less - ID:
- m900p621p
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