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Articles 1 - 2 of 2
Full-Text Articles in Neuroscience and Neurobiology
The Electrophysiological And Neuropsychological Organization Of Long Term Memory, Richard J. Addante
The Electrophysiological And Neuropsychological Organization Of Long Term Memory, Richard J. Addante
Psychology Faculty Publications
The electrophysiological correlates of recognition memory retrieval were examined in order to identify the neural conditions that precede accurate memory retrieval, characterize the processes that contribute to high and low confidence memory responses, and determine which memory processes are impaired after brain injury. Human electroencephalogram (EEG) was recorded during recognition confidence and source memory judgments in three experiments. In Experiment 1, mid-frontal pre-stimulus theta oscillations were found to precede the stimulus presentation of items that were successfully recollected, but they were not found to be predictive of item familiarity. Moreover, during stimulus presentation, recollection was associated with an increase in …
Prestimulus Theta Activity Predicts Correct Source Memory Retrieval, Richard J. Addante, Andrew J. Watrous, Andrew P. Yonelinas, Arne D. Ekstrom, Charan Ranganath
Prestimulus Theta Activity Predicts Correct Source Memory Retrieval, Richard J. Addante, Andrew J. Watrous, Andrew P. Yonelinas, Arne D. Ekstrom, Charan Ranganath
Psychology Faculty Publications
Recent evidence indicates that the processing of a stimulus can be influenced by preceding patterns of brain activity. Here we examine whether prestimulus oscillatory brain activity can influence the ability to retrieve episodic memories. Neural activity in the theta-frequency band (4-8 Hz) was enhanced before presentation of test items which elicited accurate recollection of contextual details of the prior study episode ("source retrieval"), relative to trials for which item recognition was successful but source retrieval failed. Poststimulus theta activity was also related to source retrieval, and the magnitude of poststimulus theta was predicted by the magnitude of the prestimulus theta …