Artificial neural networks reveal individual differences in metacognitive monitoring of memory.

ABSTRACT: Previous work supports an age-specific impairment for recognition memory of pairs of words and other stimuli. The present study tested the generalization of an associative deficit across word, name, and nonword stimulus types in younger and older adults. Participants completed associative and item memory tests in one of three stimulus conditions and made metacognitive ratings of perceptions of self-efficacy, task success ("postdictions"), strategy success, task effort, difficulty, fatigue, and stamina. Surprisingly, no support was found for an age-related associative deficit on any of the stimulus types. We analyzed our data further using a multilayer perceptron artificial neural network. The network was trained to classify individuals as younger or older and its hidden unit activities wer

SUBMITTER: Zakrzewski AC 

PROVIDER: S-EPMC6668824 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature