Long-Term Memory: Do Incremental Signals Reflect Engagement of Cognitive Processes?

2005 ◽  
pp. 257-277
Author(s):  
Jed A. Meltzer ◽  
R. Todd Constable
2020 ◽  
Vol 24 (8) ◽  
pp. 885-896
Author(s):  
L. N. Grinkevich

The mechanisms of long-term memory formation and ways to improve it (in the case of its impairment) remain an extremely difficult problem yet to be solved. Over the recent years, much attention has been paid to microRNAs in this regard. MicroRNAs are unique endogenous non-coding RNAs about 22 nucleotides in length; each can regulate translation of hundreds of messenger RNA targets, thereby controlling entire gene networks. MicroRNAs are widely represented in the central nervous system. A large number of studies are currently being conducted to investigate the role of microRNAs in the brain functioning. A number of microRNAs have been shown to be involved in the process of synaptic plasticity, as well as in the long-term memory formation. Disruption of microRNA biogenesis leads to significant cognitive dysfunctions. Moreover, impaired microRNA biogenesis is one of the causes of the pathogenesis of mental disorders, neurodegenerative illnesses and senile dementia, which are often accompanied by deterioration in the learning ability and by memory impairment. Optimistic predictions are made that microRNAs can be used as targets for therapeutic treatment and for diagnosing the above pathologies. The importance of applications related to microRNAs significantly raises interest in studying their functions in the brain. Thus, this review is focused on the role of microRNAs in cognitive processes. It describes microRNA biogenesis and the role of miRNAs in the regulation of gene expression, as well as the latest achievements in studying the functional role of microRNAs in learning and in long-term memory formation, depending on the activation or inhibition of their expression. The review presents summarized data on the effect of impaired microRNA biogenesis on long-term memory formation, including those associated with sleep deprivation. In addition, analysis is provided of the current literature related to the prospects of improving cognitive processes by influencing microRNA biogenesis via the use of CRISPR/Cas9 technologies and active mental and physical exercises.


2021 ◽  
Vol 10 (2) ◽  
pp. 204-217
Author(s):  
Khoirotul Ni'amah ◽  
Hafidzulloh S M

Learning theory will make easier for educators to carry out the form of learning that will be implemented. This article will review the theory of cognitive learning and will provide a complete understanding and explanation so that it can be applied in learning activities. This study uses a qualitative approach and includes library research. The author tries and strives to collect library data related to the cognitive theory of J. Bruner, Ausubel, and Robert M. Gagne and their actualization in Islamic Education learning enriched from several academic sources both from books, scientific articles, previous studies and other scientific writings that related to the topic of this article. The results of this study are the cognitive theory developed by J. Bruner states cognitive processes are enactive, iconic, and symbolic; Ausubel said cognitive processes occur. Advanced organizer (initial arrangement), progressive differentiation, Reconciliation reconciliation (integrative reconciliation), consolidation; Robert M. Gagne states that cognitive processes are through receptors, sensory registers, short-term memory, long-term memory, and response generators. The learning process according to cognitivism is through the stages of assimilation, accommodation, and equilibration, namely the learning process is more directed. This is adjusted to the age of the students, so the stages are enactive, econic, and symbolic.


Author(s):  
Paul Eggen

Information processing is a cognitive learning theory that helps explain how individuals acquire, process, store, and retrieve information from memory. The cognitive architecture that facilitates the processing of information consists of three components: memory stores, cognitive processes, and metacognition. The memory stores are sensory memory, a virtually unlimited store that briefly holds stimuli from the environment in an unprocessed form until processing begins; working memory, the conscious component of our information processing system, limited in both capacity and duration, where knowledge is organized and constructed in a form that makes sense to the individual; and long-term memory, a vast and durable store that holds an individual’s lifetime of acquired information. Information is moved from sensory memory to working memory using the cognitive processes attention, selectively focusing on a single stimulus, and perception, the process of attaching meaning to stimuli. After information is organized in working memory so it makes sense to the individual, it is represented in long-term memory through the process of encoding, where it can later be retrieved and connected to new information from the environment. Metacognition is a regulatory mechanism that facilitates the use of strategies, such as chunking, automaticity, and distributed processing, that help accommodate the limitations of working memory, and schema activation, organization, elaboration, and imagery that promote the efficient encoding of information into long-term memory. Information processing theory has implications for our daily living ranging from tasks as simple as shopping at a supermarket to those as sophisticated as solving complex problems.


2016 ◽  
Vol 39 ◽  
Author(s):  
Mary C. Potter

AbstractRapid serial visual presentation (RSVP) of words or pictured scenes provides evidence for a large-capacity conceptual short-term memory (CSTM) that momentarily provides rich associated material from long-term memory, permitting rapid chunking (Potter 1993; 2009; 2012). In perception of scenes as well as language comprehension, we make use of knowledge that briefly exceeds the supposed limits of working memory.


2020 ◽  
Vol 29 (4) ◽  
pp. 710-727
Author(s):  
Beula M. Magimairaj ◽  
Naveen K. Nagaraj ◽  
Alexander V. Sergeev ◽  
Natalie J. Benafield

Objectives School-age children with and without parent-reported listening difficulties (LiD) were compared on auditory processing, language, memory, and attention abilities. The objective was to extend what is known so far in the literature about children with LiD by using multiple measures and selective novel measures across the above areas. Design Twenty-six children who were reported by their parents as having LiD and 26 age-matched typically developing children completed clinical tests of auditory processing and multiple measures of language, attention, and memory. All children had normal-range pure-tone hearing thresholds bilaterally. Group differences were examined. Results In addition to significantly poorer speech-perception-in-noise scores, children with LiD had reduced speed and accuracy of word retrieval from long-term memory, poorer short-term memory, sentence recall, and inferencing ability. Statistically significant group differences were of moderate effect size; however, standard test scores of children with LiD were not clinically poor. No statistically significant group differences were observed in attention, working memory capacity, vocabulary, and nonverbal IQ. Conclusions Mild signal-to-noise ratio loss, as reflected by the group mean of children with LiD, supported the children's functional listening problems. In addition, children's relative weakness in select areas of language performance, short-term memory, and long-term memory lexical retrieval speed and accuracy added to previous research on evidence-based areas that need to be evaluated in children with LiD who almost always have heterogenous profiles. Importantly, the functional difficulties faced by children with LiD in relation to their test results indicated, to some extent, that commonly used assessments may not be adequately capturing the children's listening challenges. Supplemental Material https://doi.org/10.23641/asha.12808607


2011 ◽  
Vol 70 (1) ◽  
pp. 35-39 ◽  
Author(s):  
Muriel Fanget ◽  
Catherine Thevenot ◽  
Caroline Castel ◽  
Michel Fayol

In this study, we used a paradigm recently developed ( Thevenot, Fanget, & Fayol, 2007 ) to determine whether 10-year-old children solve simple addition problems by retrieval of the answer from long-term memory or by calculation procedures. Our paradigm is unique in that it does not rely on reaction times or verbal reports, which are known to potentially bias the results, especially in children. Rather, it takes advantage of the fact that calculation procedures degrade the memory traces of the operands, so that it is more difficult to recognize them when they have been involved in the solution of an addition problem by calculation rather than by retrieval. The present study sharpens the current conclusions in the literature and shows that, when the sum of addition problems is up to 10, children mainly use retrieval, but when it is greater than 10, they mainly use calculation procedures.


2010 ◽  
Vol 24 (4) ◽  
pp. 249-252 ◽  
Author(s):  
Márk Molnár ◽  
Roland Boha ◽  
Balázs Czigler ◽  
Zsófia Anna Gaál

This review surveys relevant and recent data of the pertinent literature regarding the acute effect of alcohol on various kinds of memory processes with special emphasis on working memory. The characteristics of different types of long-term memory (LTM) and short-term memory (STM) processes are summarized with an attempt to relate these to various structures in the brain. LTM is typically impaired by chronic alcohol intake but according to some data a single dose of ethanol may have long lasting effects if administered at a critically important age. The most commonly seen deleterious acute effect of alcohol to STM appears following large doses of ethanol in conditions of “binge drinking” causing the “blackout” phenomenon. However, with the application of various techniques and well-structured behavioral paradigms it is possible to detect, albeit occasionally, subtle changes of cognitive processes even as a result of a low dose of alcohol. These data may be important for the consideration of legal consequences of low-dose ethanol intake in conditions such as driving, etc.


Author(s):  
Ian Neath ◽  
Jean Saint-Aubin ◽  
Tamra J. Bireta ◽  
Andrew J. Gabel ◽  
Chelsea G. Hudson ◽  
...  

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