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Published on: June 26, 2013
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Using electrophysiology to demonstrate that cueing affects long-term memory storage over the short term
Ashleigh M Maxcey1, Keisuke Fukuda2, Won S Song2
1Department of Psychology, Manchester University, 604 E. College Avenue, North Manchester, IN, 46962, USA. AMMaxcey@manchester.edu.
Psychonomic Bulletin & Review
|January 22, 2015
Summary
Cues in working memory studies may influence long-term memory, not just working memory storage. Frontal brain activity suggests cues alter how information is processed for long-term recall.
Area of Science:
- Cognitive Neuroscience
- Psychology
Background:
- Working memory research often assumes cues solely enhance working memory storage.
- This assumption may overlook other memory system interactions.
Purpose of the Study:
- To test if cues during object streams affect long-term memory handling.
- To investigate the influence of task relevance on memory processes.
Main Methods:
- Utilized auditory cues within object streams followed by memory tests.
- Measured frontal event-related potentials (ERPs) associated with long-term memory storage.
- Examined memory performance under high proactive interference conditions.
Main Results:
- Frontal ERPs indicated sensitivity to task-relevant objects signaled by cues.
- This effect persisted despite frequent stimulus repetitions and high interference.
- Superior memory for cued items may not solely stem from working memory storage.
Conclusions:
- The assumption of process purity in working memory studies is questioned.
- Cues can modulate long-term memory processes, complicating the isolation of working memory mechanisms.
- Frequent stimulus repetitions do not effectively isolate working memory functions.
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