GO:0007614 short-term memory: Cognitive Mechanism, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0007614 short-term memory is defined as the memory process that deals with the storage, retrieval and modification of information received a short time (up to about 30 minutes) ago, typically dependent on direct, transient effects of second messenger activation.
• Short-term memory is a core component of the modal model of memory, bridging sensory input and long-term storage through a limited-capacity short-term store.
• Persistent neural activity has traditionally been viewed as the neural substrate of short-term memory, but recent work calls for reevaluation of its precise role.
• Short-term memory capacity is influenced by chunking and data compression mechanisms, particularly in verbal short-term memory.
• Impairments in short-term memory are observed in developmental language disorder, highlighting its clinical relevance.
• Research into short-term memory employs behavioral paradigms, neuroimaging, electrophysiology, and genetic models to dissect its molecular and circuit basis.
Description
Short-term memory (GO:0007614) is a fundamental cognitive process that enables the temporary storage and manipulation of information over brief periods, typically up to about 30 minutes. It is distinguished from long-term memory by its transient nature and its reliance on second messenger signaling rather than enduring structural changes. The concept has been central to memory research since the mid-20th century, with early work by Brown (1964) outlining its behavioral characteristics. Modern cognitive psychology has integrated short-term memory into broader frameworks such as the multicomponent working memory model, which posits a limited-capacity short-term store interacting with other subsystems. Researchers study short-term memory to understand how the brain encodes, maintains, and retrieves information on short timescales, and to identify the molecular and circuit mechanisms that support these operations. Dysfunction in short-term memory is associated with various neurological and developmental conditions, making it a key target for both basic and translational neuroscience.
short-term memory At A Glance
| GO ID | GO:0007614 |
|---|---|
| GO term | short-term memory |
| Ontology | biological_process |
| Synonym | None |
| Definition | The memory process that deals with the storage, retrieval and modification of information received a short time (up to about 30 minutes) ago. This type of memory is typically dependent on direct, transient effects of second messenger activation. |
| Major function | Temporary storage and manipulation of information over brief periods, supporting cognitive operations such as verbal recall and visual object memory. |
| Related concepts | Working memory, short-term store, chunking, persistent neural activity. |
| Clinical relevance | Impairments observed in developmental language disorder and other cognitive disorders. |
What Is GO:0007614?
According to the Gene Ontology, short-term memory (GO:0007614) is the memory process that deals with the storage, retrieval and modification of information received a short time (up to about 30 minutes) ago. This type of memory is typically dependent on direct, transient effects of second messenger activation, rather than on long-lasting changes in gene expression or synaptic structure.
Why Is short-term memory Important in Cell Biology?
Short-term memory is essential for everyday cognitive functioning, enabling individuals to hold and process information momentarily for tasks such as conversation, reading, and problem-solving. It serves as a gateway to long-term memory, and its capacity limits shape higher-order cognition. Understanding the neural and molecular underpinnings of short-term memory is crucial for deciphering how the brain manages information flow and for developing interventions for memory-related disorders.
• Short-term memory is a core component of working memory, which underpins complex cognitive tasks.
• It allows temporary maintenance of information for immediate use, such as remembering a phone number.
• Capacity limitations in short-term memory influence language comprehension and production.
• Chunking mechanisms expand effective short-term memory capacity by compressing information.
• Persistent neural activity is a candidate mechanism for short-term memory maintenance.
• Short-term memory deficits are associated with developmental language disorder in children.
• It is a key area of study in cognitive neuroscience and psychology.
• Animal models and genetic tools are used to dissect the molecular basis of short-term memory.
• Short-term memory research informs educational and clinical practices.
• Understanding short-term memory can aid in early detection of cognitive decline.
What Happens During short-term memory?
Encoding of Information
In simple terms: When you see or hear something, your brain quickly takes it in.
The initial step in short-term memory involves the encoding of sensory information into a transient neural representation. This process is rapid and can occur for verbal, visual, or spatial stimuli. For example, very short-term conceptual memory allows retention of visual objects for brief periods. Encoding is thought to rely on direct, transient effects of second messenger activation, which modulate neuronal excitability and synaptic efficacy.
Maintenance through Persistent Activity
In simple terms: Your brain keeps the information active by firing neurons in a loop.
Maintenance of short-term memory has traditionally been attributed to persistent neural activity, where neurons continue to fire during the delay period after stimulus offset. This sustained activity is believed to hold the information online. However, recent reevaluation suggests that persistent activity may not be the sole mechanism, and other dynamic processes such as synaptic short-term plasticity could contribute. The exact neural code for maintenance remains an active area of research.
Retrieval and Modification
In simple terms: You recall the information and can change it if needed.
Retrieval involves accessing the stored information for immediate use, while modification allows updating or manipulating the contents of short-term memory. This flexibility is essential for tasks like mental arithmetic or following a conversation. The process is supported by attention and executive control mechanisms that interact with short-term storage. Cowan (1993) emphasized the role of activation and attention in short-term memory, suggesting that memory contents are activated representations within a limited-capacity system.
Capacity Limits and Chunking
In simple terms: You can only hold a few items at once, but grouping helps.
Short-term memory is characterized by a limited capacity, often described as about four chunks of information. Chunking and data compression mechanisms allow individuals to overcome these limits by grouping items into meaningful units. Norris et al. (2021) proposed that verbal short-term memory operates through chunking and compression, which can explain various empirical phenomena. This capacity limitation is a fundamental constraint on cognitive performance.
Relationship to Working Memory
In simple terms: Short-term memory is part of a larger system that also works on the information.
Short-term memory is a component of the multicomponent working memory model, which includes a central executive and specialized stores for verbal and visuospatial information. Baddeley et al. (2019) traced the evolution from the concept of a short-term store to the working memory model, highlighting the interplay between temporary storage and active processing. This framework has been influential in guiding research on memory and its neural basis.
Key Genes Involved in GO:0007614 short-term memory
While short-term memory is a cognitive process, it is underpinned by numerous genes and proteins that regulate synaptic transmission, second messenger signaling, and neuronal excitability. The following table lists key genes and proteins implicated in short-term memory based on the cited literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| BDNF | Supports synaptic plasticity and neuronal survival | Implicated in memory formation and cognitive function |
| CREB1 | Transcription factor activated by second messengers | Regulates genes involved in memory consolidation |
| CAMK2A | Calcium/calmodulin-dependent protein kinase | Critical for synaptic plasticity and short-term memory |
| PRKACA | Catalytic subunit of protein kinase A | Mediates second messenger effects in short-term memory |
| GRIN1 | NMDA receptor subunit | Essential for synaptic transmission and plasticity |
| GRIN2A | NMDA receptor subunit | Modulates receptor properties and memory |
| GRIN2B | NMDA receptor subunit | Involved in synaptic plasticity and memory |
| DRD1 | Dopamine receptor D1 | Modulates prefrontal cortex activity during working memory |
| DRD2 | Dopamine receptor D2 | Influences cognitive flexibility and memory |
| ADRA2A | Alpha-2A adrenergic receptor | Regulates attention and working memory |
| CHRNA7 | Nicotinic acetylcholine receptor subunit | Modulates attention and short-term memory |
| GABRA1 | GABA-A receptor subunit | Controls inhibitory tone and network oscillations |
| SLC6A4 | Serotonin transporter | Regulates serotonin levels affecting memory |
| COMT | Catechol-O-methyltransferase | Degrades dopamine, influencing prefrontal function |
| ARC | Activity-regulated cytoskeleton-associated protein | Required for synaptic plasticity and memory consolidation |
| FMR1 | Fragile X mental retardation protein | RNA-binding protein linked to cognitive impairment |
| FOXP2 | Forkhead box protein P2 | Implicated in language and verbal short-term memory |
How Is short-term memory Regulated?
Short-term memory is regulated by second messenger signaling cascades, including cAMP-PKA, calcium-Calmodulin kinase, and MAPK pathways, which transiently modify synaptic efficacy. Attention and arousal systems, involving dopaminergic and noradrenergic inputs, modulate the activation state of short-term memory representations. Additionally, capacity limits are influenced by chunking and compression mechanisms that are subject to strategic control. The interplay between persistent activity and synaptic plasticity provides a dynamic regulatory landscape for short-term memory maintenance.
short-term memory and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| FMR1 | Fragile X syndrome, developmental language disorder | Fmr1 knockout mouse, patient-derived iPSCs |
| FOXP2 | Speech and language disorders | Foxp2 knockout mouse, knock-in of humanized Foxp2 |
| BDNF | Alzheimer's disease, depression | Bdnf conditional knockout mouse, overexpression models |
| COMT | Schizophrenia, cognitive deficits | Comt knockout mouse, human COMT Val/Met knock-in |
| DRD1 | Schizophrenia, working memory deficits | Drd1 knockout mouse, D1 receptor overexpression |
Developmental Language Disorder
Children with developmental language disorder exhibit selective short-term memory impairment for verbalizable visual objects, suggesting a link between short-term memory deficits and language difficulties. This impairment may reflect underlying neural abnormalities in regions supporting verbal short-term memory, such as the left inferior frontal gyrus and posterior parietal cortex. Understanding these deficits can inform targeted interventions.
Neurodegenerative and Psychiatric Conditions
Short-term memory deficits are common in neurodegenerative diseases such as Alzheimer's disease and in psychiatric disorders like schizophrenia. Although the cited literature does not directly address these conditions, the mechanisms of short-term memory maintenance, including persistent activity, are relevant to understanding cognitive decline. Research into short-term memory may aid in early detection and monitoring of these disorders.
Attention and Learning Disorders
Impairments in short-term memory are often comorbid with attention deficit hyperactivity disorder (ADHD) and specific learning disabilities. The interplay between attention and short-term memory, as described by Cowan (1993), suggests that attentional deficits can exacerbate memory problems. Studying these interactions can guide educational and clinical strategies.
From short-term memory-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does gene X affect short-term memory maintenance? | Conditional knockout mouse with behavioral testing (e.g., delayed non-match to sample) |
| Does a point mutation in gene Y alter second messenger signaling? | Knock-in mouse carrying the point mutation, combined with electrophysiology |
| Does overexpression of gene Z enhance short-term memory? | Transgenic overexpression mouse, tested in radial arm maze |
| What is the role of gene W in specific neuronal populations? | Cre-lox conditional knockout or overexpression in targeted brain regions |
| Can CRISPR activation rescue short-term memory deficits? | dCas9-VP64 activation in disease model mice |
| How does a human variant in gene V affect short-term memory? | Humanized knock-in mouse carrying the variant |
How to Study the short-term memory Process
| Method | What It Measures | Typical Application |
|---|---|---|
| Delayed non-match to sample | Short-term memory retention | Rodent models of memory |
| Digit span task | Verbal short-term memory capacity | Human cognitive testing |
| Single-unit recording | Persistent neural activity | Non-human primate prefrontal cortex |
| fMRI | Brain activation patterns | Human working memory studies |
| EEG | Temporal dynamics of memory | Human short-term memory research |
| Optogenetics | Causal role of specific circuits | Rodent memory manipulation |
| CRISPR-Cas9 knockout | Gene function in memory | Mouse models |
| RNA-seq | Gene expression changes | Molecular profiling of memory-related brain regions |
Behavioral Paradigms
Short-term memory is typically assessed using delayed response tasks, such as the delayed non-match to sample, radial arm maze, and novel object recognition. These tasks require the animal to hold information online during a delay period. In humans, verbal short-term memory is measured with digit span and word recall tasks. These paradigms are essential for quantifying memory performance and identifying deficits.
Electrophysiology
Electrophysiological recordings, including single-unit and local field potential recordings, are used to measure persistent activity during delay periods in tasks requiring short-term memory. These recordings can reveal whether neurons maintain stimulus-specific firing, a hallmark of short-term memory maintenance. In vitro slice electrophysiology can assess synaptic plasticity mechanisms that may contribute to short-term memory.
Molecular and Genetic Tools
Genetic tools such as knockout, knock-in, and transgenic mice allow researchers to manipulate specific genes and assess their impact on short-term memory. Second messenger pathways can be targeted using pharmacological agents or optogenetic/chemogenetic approaches. CRISPR-Cas9 genome editing enables precise introduction of mutations to study gene function in memory.
Neuroimaging
Functional magnetic resonance imaging (fMRI) and electroencephalography (EEG) are used in humans to identify brain regions active during short-term memory tasks. These methods can reveal the neural correlates of encoding, maintenance, and retrieval. They are particularly useful for studying working memory components and their interactions.
How CRISPR Can Be Used to Study GO:0007614 short-term memory
Knockout
CRISPR-Cas9 knockout is used to delete genes hypothesized to be involved in short-term memory, such as BDNF, CREB1, or CAMK2A, in mice or cell models. Knockout models help determine whether a gene is necessary for memory formation or maintenance. Behavioral testing then assesses deficits in short-term memory tasks.
Point Mutation
Point mutations can be introduced via CRISPR-Cas9 homology-directed repair to model specific amino acid changes in proteins like NMDA receptor subunits or kinases. These models allow precise interrogation of molecular mechanisms, such as phosphorylation sites or ligand-binding residues, in short-term memory.
Knock-in
Knock-in strategies are used to insert reporter tags (e.g., GFP) or human disease variants into endogenous loci. Tagged knock-in mice enable visualization of protein localization and dynamics during short-term memory tasks. Disease-variant knock-ins model human genetic contributions to memory disorders.
Overexpression
CRISPR activation (CRISPRa) or transgenic overexpression can increase expression of genes like BDNF or CREB1 to test whether enhanced signaling improves short-term memory. Overexpression models are valuable for gain-of-function studies and for validating therapeutic targets.
How EDITGENE Supports short-term memory Research
Researchers studying short-term memory-related genes often need to determine whether a candidate gene is causally involved in memory processes or merely correlated with them. This requires precise genetic manipulation, which can be achieved through CRISPR-based genome editing. EDITGENE provides a comprehensive suite of services to support such investigations, from knockout to knock-in and overexpression models, as well as library screening and bioinformatics.
Contact EDITGENE today to design your custom CRISPR model for short-term memory research.
Frequently Asked Questions About short-term memory
What is short-term memory (GO:0007614)?
Short-term memory (GO:0007614) is the memory process that deals with the storage, retrieval and modification of information received a short time (up to about 30 minutes) ago, typically dependent on direct, transient effects of second messenger activation.
What genes are involved in short-term memory?
Genes such as BDNF, CREB1, CAMK2A, and NMDA receptor subunits (GRIN1, GRIN2A, GRIN2B) are involved in short-term memory through their roles in synaptic plasticity and second messenger signaling.
How is short-term memory different from working memory?
Short-term memory refers to the temporary storage of information, while working memory includes both storage and active manipulation of information, as described in the multicomponent model.
What is the capacity of short-term memory?
Short-term memory capacity is limited, often estimated at about four chunks of information, but chunking and compression can increase effective capacity.
What brain regions are involved in short-term memory?
The prefrontal cortex, parietal cortex, and temporal lobe are key regions, with persistent neural activity often observed during delay periods.
How is short-term memory studied in the lab?
Researchers use behavioral tasks (e.g., delayed non-match to sample), electrophysiology, neuroimaging, and genetic models including CRISPR knockouts.
What is the role of persistent neural activity in short-term memory?
Persistent neural activity is a candidate mechanism for maintaining information in short-term memory, though its precise role is under reevaluation.
Can short-term memory be improved?
Some studies suggest that strategies like chunking can enhance short-term memory performance, and genetic or pharmacological interventions are being explored in animal models.
What disorders are associated with short-term memory deficits?
Developmental language disorder, Alzheimer's disease, schizophrenia, and ADHD are associated with short-term memory impairments.
How can CRISPR help study short-term memory?
CRISPR enables precise knockout, knock-in, or overexpression of genes to test their causal role in short-term memory, as well as library screening to discover new players.
Conclusion
Short-term memory (GO:0007614) is a fundamental cognitive process that enables the temporary storage and manipulation of information over brief periods. It relies on transient second messenger signaling and is supported by neural mechanisms such as persistent activity, though its precise basis remains an active area of research. Genetic and molecular studies, facilitated by CRISPR technologies, continue to uncover the genes and pathways that underlie short-term memory, with implications for understanding developmental and neurodegenerative disorders. EDITGENE provides essential tools and services to accelerate this research, from custom knockout and knock-in models to high-throughput screening and bioinformatics support.
References
- 1. BROWN J. 1964. SHORT-TERM MEMORY.. Br Med Bull 20:8-11 PMID: 14104103
- 2. Norris D et al.. 2021. Chunking and data compression in verbal short-term memory.. Cognition 208:104534 PMID: 33360054
- 3. Baddeley AD et al.. 2019. From short-term store to multicomponent working memory: The role of the modal model.. Mem Cognit 47(4):575-588 PMID: 30478520
- 4. Potter MC. 1993. Very short-term conceptual memory.. Mem Cognit 21(2):156-61 PMID: 8469123
- 5. Crowder RG. 1993. Short-term memory: where do we stand?. Mem Cognit 21(2):142-5 PMID: 8469121
- 6. Cowan N. 1993. Activation, attention, and short-term memory.. Mem Cognit 21(2):162-7 PMID: 8469124
- 7. Masse NY et al.. 2020. Reevaluating the Role of Persistent Neural Activity in Short-Term Memory.. Trends Cogn Sci 24(3):242-258 PMID: 32007384
- 8. Bryłka M et al.. 2024. Selective short-term memory impairment for verbalizable visual objects in children with Developmental Language Disorder.. Res Dev Disabil 144:104637 PMID: 38035638
