Encoding contexts are incidentally reinstated during competitive retrieval and track the temporal dynamics of memory
Inês Bramão1, Jiefeng Jiang2, Anthony D Wagner3,4
1Department of Psychology, Lund University, Lund SE-221 00, Sweden.
Cerebral Cortex (New York, N.Y. : 1991)
|February 2, 2022
Summary
Memory retrieval is challenged by similar events. This study shows that competitor context is reinstated during memory recall, impacting performance and aiding interference resolution.
Area of Science:
- Cognitive Neuroscience
- Memory Research
Background:
- Memory recall is often impaired by interference from similar events.
- Understanding how the brain resolves such competition is crucial for memory research.
Purpose of the Study:
- To investigate the incidental reinstatement of encoding contexts during competitive memory retrieval.
- To determine if neural reactivation of context plays a role in memory interference and resolution.
Main Methods:
- Utilized the AB/AC interference paradigm to create memory competition.
- Employed multivariate pattern analysis (MVPA) on high-temporal-resolution electroencephalographic (EEG) data.
- Analyzed behavioral performance and neural activity during memory retrieval.
Main Results:
- Observed proactive interference, where AC retrieval was impaired compared to noncompetitive DE retrieval.
- Found that early neural reinstatement of the competitor context accompanied proactive interference.
- Demonstrated that interference resolution was linked to the subsequent reinstatement of the target context.
Conclusions:
- Encoding contexts of competing memories are incidentally reinstated during retrieval.
- Contextual reinstatement patterns correlate with memory competition and resolution.
- Provides novel neural evidence for the role of context in resolving memory interference.
Related Concept Videos
01:16Interference and Decay
237
Forgetting is a complex cognitive phenomenon influenced by several factors, among which interference and decay are particularly prominent. These processes explain why individuals often struggle to retrieve specific information from memory, leading to lapses in recall that can be observed in everyday situations.
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
237
01:12Retrieval
196
Retrieval is the process of getting information out of memory storage and back into conscious awareness. This ability is essential for daily tasks like brushing hair and teeth, driving to work, and performing job duties. Retrieval occurs in three ways: recall, recognition, and relearning.
Recall involves accessing information without cues, such as during an essay test, where individuals must retrieve facts and concepts from memory unaided. Another example is remembering the name of a colleague...
Recall involves accessing information without cues, such as during an essay test, where individuals must retrieve facts and concepts from memory unaided. Another example is remembering the name of a colleague...
196
01:21Forgetting
144
Forgetting is an intrinsic aspect of human memory, characterized by the gradual loss or inaccessibility of information over time. Hermann Ebbinghaus, a pioneering psychologist, extensively studied this phenomenon and formulated the forgetting curve. This curve illustrates that memory loss occurs rapidly immediately after learning and then decelerates over time. Several mechanisms contribute to forgetting, including encoding failure, storage decay, retrieval failure, and interference.
Encoding...
Encoding...
144
01:24Implicit Memories
211
Implicit memories, also known as non-declarative memories, are long-term memories that function outside of conscious awareness. These memories influence behavior and skills without explicit knowledge. This type of memory is evident in tasks like playing tennis, snowboarding, and texting. Implicit memory has three subsystems: procedural memory, conditioning, and priming. This type of memory is essential in various activities, from everyday tasks to specialized skills.
One key aspect of implicit...
One key aspect of implicit...
211
01:24Working Memory
468
Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...
468
01:19Understanding Memory
679
Memory is the retention of information or experiences over time, facilitated through three main processes: encoding, storage, and retrieval. Encoding is the process of inputting information into the memory system. For instance, when listening to a lecture, watching a play, reading a book, or having a conversation, the brain is actively encoding information. This initial stage involves transforming sensory input into a form that can be processed and stored by the brain. Various factors, such as...
679