scholarly journals Neural correlates of conceptual implicit memory and their contamination of putative neural correlates of explicit memory

2007 ◽  
Vol 14 (4) ◽  
pp. 259-267 ◽  
Author(s):  
J. L. Voss ◽  
K. A. Paller
Keyword(s):  
Implicit Memory ◽  
Explicit Memory ◽  
Neural Correlates

scholarly journals Conceptual Priming and Familiarity: Different Expressions of Memory during Recognition Testing with Distinct Neurophysiological Correlates

2010 ◽  
Vol 22 (11) ◽  
pp. 2638-2651 ◽  
Author(s):  
Joel L. Voss ◽  
Heather D. Lucas ◽  
Ken A. Paller
Keyword(s):  
Implicit Memory ◽  
Explicit Memory ◽  
Neural Correlates ◽  
Neural Responses ◽  
Neural Signals ◽  
Conceptual Information ◽  
Conceptual Priming ◽  
Familiarity And Recollection ◽  
Recognition Testing ◽  
Different Characteristics

Familiarity and recollection are qualitatively different explicit-memory phenomena evident during recognition testing. Investigations of the neurocognitive substrates of familiarity and recollection, however, have typically disregarded implicit-memory processes likely to be engaged during recognition tests. We reasoned that differential neural responses to old and new items in a recognition test may reflect either explicit or implicit memory. Putative neural correlates of familiarity in prior experiments, for example, may actually reflect contamination by implicit memory. In two experiments, we used obscure words that subjects could not formally define to tease apart electrophysiological correlates of familiarity and one form of implicit memory, conceptual priming. In Experiment 1, conceptual priming was observed for words only if they elicited meaningful associations. In Experiment 2, two distinct neural signals were observed in conjunction with familiarity-based recognition: late posterior potentials for words that both did and did not elicit meaningful associations and FN400 potentials only for the former. Given that symbolic meaning is a prerequisite for conceptual priming, the combined results specifically link late posterior potentials and FN400 potentials with familiarity and conceptual priming, respectively. These findings contradict previous interpretations of FN400 potentials as generic signals of familiarity and show that repeated stimuli in recognition tests can engender facilitated processing of conceptual information in addition to retrieval processing that leads to the awareness of memory retrieval. The different characteristics of the electrical markers of these two types of process further underscore the biological validity of the distinction between implicit memory and explicit memory.

Dissociation of the neural correlates of implicit and explicit memory

Nature ◽  
10.1038/33396 ◽  
1998 ◽  
Vol 392 (6676) ◽  
pp. 595-598 ◽  
Author(s):  
Michael D. Rugg ◽  
Ruth E. Mark ◽  
Peter Walla ◽  
Astrid M. Schloerscheidt ◽  
Claire S. Birch ◽  
...  
Keyword(s):  
Explicit Memory ◽  
Neural Correlates ◽  
Implicit And Explicit Memory ◽  
Implicit And Explicit

Implicit Memory and Aging

2013 ◽  
pp. 1-19
Author(s):  
Christopher A. Was ◽  
Dan J. Woltz
Keyword(s):  
Older Adults ◽  
Implicit Memory ◽  
Explicit Memory ◽  
Declarative Memory ◽  
Procedural Memory ◽  
Information And Communications Technologies ◽  
Memory And Learning ◽  
Memory Processes ◽  
Storage And Retrieval ◽  
Communications Technologies

There is clear evidence that aging has an effect on memory. However, not all memory processes suffer as one ages. In the current chapter, the authors review the distinctions between explicit memory (i.e., effortful storage and retrieval of information) and implicit memory (i.e., learning and memory that do not require conscious effort). They then review the evidence indicating that implicit memory does not decline at the same rate as explicit memory. They authors then discuss the possibility of using implicit memory processes (e.g. procedural memory), to aid explicit memory processes (e.g., declarative memory). Finally, they discuss the need and the opportunity to incorporate information and communications technologies into the lives of older adults in order to support memory and learning.

Evidence for long-term cross-language repetition priming in low fluency Chinese–English bilinguals

2009 ◽  
Vol 12 (1) ◽  
pp. 13-21 ◽  
Author(s):  
LI LI ◽  
LEI MO ◽  
RUIMING WANG ◽  
XUEYING LUO ◽  
ZHE CHEN
Keyword(s):  
Second Language ◽  
Implicit Memory ◽  
Explicit Memory ◽  
Repetition Priming ◽  
First Language ◽  
Memory Task ◽  
Lexical Representation ◽  
Priming Paradigm ◽  
Cross Language

Previous studies have found that proficiency in a second language affects how the meanings of words are accessed. Support for this hypothesis is based on data from explicit memory tasks with bilingual participants who know two languages that are relatively similar phonologically and orthographically (e.g., Dutch–English, French–English). The present study tested this hypothesis with Chinese–English bilinguals using an implicit memory task – the cross-language repetition priming paradigm. Consistent with the result of Zeelenberg, R. and Pecher, D. (2003), we obtained reliable effects of long-term cross-language repetition priming using a conceptual implicit memory task. Overall, the four experiments support the Revised Hierarchical Model as they demonstrate that low fluency bilinguals can only access the conceptual representation of the second language via the lexical representation of the first language.

scholarly journals Implicit Memory and Cognitive Aging

2018 ◽  
Author(s):  
Emma V. Ward ◽  
David R. Shanks
Keyword(s):  
Older Adults ◽  
Implicit Memory ◽  
Cognitive Aging ◽  
Explicit Memory ◽  
Human Memory ◽  
Memory Systems ◽  
Normal Aging ◽  
Future Research ◽  
Theoretical Understanding ◽  
Age Related

It is well documented that explicit (declarative, conscious) memory declines in normal aging. Studies have shown a progressive reduction in this form of memory with age, and healthy older adults (typically aged 65+ years) usually perform worse than younger adults (typically aged 18–30 years) on laboratory tests of explicit memory such as recall and recognition. In contrast, it is less clear whether implicit (procedural, unconscious) memory declines or remains stable in normal aging. Implicit memory is evident when previous experiences affect (e.g., facilitate) performance on tasks that do not require conscious recollection of those experiences. This can manifest in rehearsed motor skills, such as playing a musical instrument, but is typically indexed in the laboratory by the greater ease with which previously studied information is processed relative to non-studied information (e.g., repetition priming). While a vast amount of research has accumulated to suggest that implicit memory remains relatively stable over the adult lifespan, and is similar in samples of young and older adults, other studies have in contrast revealed that implicit memory is subject to age-related decline. Improving methods for determining whether implicit memory declines or remains stable with age is an important goal for future research, as the issue not only has significant implications for an aging society regarding interventions likely to ameliorate the effects of age-related explicit memory decline, but can also inform our theoretical understanding of human memory systems.

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