Dataset Information

Age-by-Emotion Interactions in Memory Retrieval Processes: An Event-Related Potential Study.

ABSTRACT:

Objectives

Although research has identified age-by-emotion interactions in memory performance and in neural recruitment during retrieval, it remains unclear which retrieval processes are affected. The temporal resolution of event-related potentials (ERPs) provides a way to examine different component processes that operate during retrieval.

Methods

In the present study, younger and older adults encoded neutral and emotional images paired with neutral titles. ERPs were assessed during a recognition memory task in which participants viewed neutral titles and indicated whether each had been presented during encoding.

Results

An age-related posterior-to-anterior shift began in a time window typically associated with recollection-related processes (500-800 ms) while an age-by-emotion interaction occurred only during a later measurement window (800-1,200 ms).

Discussion

These findings suggest an effect of age on mechanisms supporting retrieval of episodic content, prior to post-retrieval processing. The potential relations to different types of detail retrieval are discussed. Further, the later age-by-emotion interactions suggest that age influences the effect of emotion on post-retrieval processes, specifically.

SUBMITTER: Ford JH

PROVIDER: S-EPMC7357959 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature

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Publications

Age-by-Emotion Interactions in Memory Retrieval Processes: An Event-Related Potential Study.

Ford Jaclyn H JH Kensinger Elizabeth A EA

The journals of gerontology. Series B, Psychological sciences and social sciences 20190901 7

<h4>Objectives</h4>Although research has identified age-by-emotion interactions in memory performance and in neural recruitment during retrieval, it remains unclear which retrieval processes are affected. The temporal resolution of event-related potentials (ERPs) provides a way to examine different component processes that operate during retrieval.<h4>Methods</h4>In the present study, younger and older adults encoded neutral and emotional images paired with neutral titles. ERPs were assessed dur ...[more]

PMID: 28958045

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Project description:Memories compete for retrieval when they are related to a common retrieval cue. Previous research has shown that retrieval of a target memory may lead to subsequent retrieval-induced forgetting (RIF) of currently irrelevant competing memories. In the present study, we investigated the time course of competitive semantic retrieval and examined the neurocognitive mechanisms underlying RIF. We contrasted two theoretical accounts of RIF by examining a critical aspect of this memory phenomenon, namely the extent to which it depends on successful retrieval of the target memory. Participants first studied category-exemplar word-pairs (e.g. Fruit-Apple). Next, we recorded electrophysiological measures of brain activity while the participants performed a competitive semantic cued-recall task. In this task, the participants were provided with the studied categories but they were instructed to retrieve other unstudied exemplars (e.g. Fruit-Ma__?). We investigated the event-related potential (ERP) correlates of retrieval success by comparing ERPs from successful and failed retrieval trials. To isolate the ERP correlates of continuous retrieval attempts from the ERP correlates of retrieval success, we included an impossible retrieval condition, with incompletable word-stem cues (Drinks-Wy__) and compared it with a non-retrieval presentation baseline condition (Occupation-Dentist). The participants' memory for all the studied exemplars was tested in the final phase of the experiment. Taken together, the behavioural results suggest that RIF is independent of target retrieval. Beyond investigating the mechanisms underlying RIF, the present study also elucidates the temporal dynamics of semantic cued-recall by isolating the ERP correlates of retrieval attempt and retrieval success. The ERP results revealed that retrieval attempt is reflected in a late posterior negativity, possibly indicating construction of candidates for completing the word-stem cue and retrieval monitoring whereas retrieval success was reflected in an anterior positive slow wave.

Dataset Information

Age-by-Emotion Interactions in Memory Retrieval Processes: An Event-Related Potential Study.

Objectives

Methods

Results

Discussion

Publications

Age-by-Emotion Interactions in Memory Retrieval Processes: An Event-Related Potential Study.

Similar Datasets

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