Long-term Adaptation
Long-term Adaptation - Related Videos
11:30
A Molecular Readout of Long-term Olfactory Adaptation in C. elegans
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Cited by 2 •
2012
Here we describe a molecular readout of long-term olfactory adaptation in Caenorhabditis elegans. The Protein Kinase G, EGL-4, is necessary for stable adaptation responses in the primary sensory neuron pair called AWC. During prolonged odor exposure EGL-4 translocates from the cytosol to nucleus of the AWC.
02:18
Isolation of Stress-Adapted Bacteria through Single Colony Selection
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2025
Source: Jeong, H., et. al. Procedure for Adaptive Laboratory Evolution of Microorganisms Using a Chemostat. J. Vis. Exp. (2016).This video demonstrates the selective isolation and growth of stress-adapted bacteria from a culture exposed to prolonged stress conditions. The culture is plated on stressor-containing agar, and a single colony is selected to inoculate a liquid medium with the stressor. Absorbance is measured at regular intervals to monitor the growth and confirm the successful...
01:05
Long-term Depression
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2019
Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory. Calcium Ion Concentration Mechanism If over time, all...
03:41
In Vitro Calcium Imaging in Short-Term and Long-Term Rat Hippocampal Cultures
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2025
Source: Calvo-Rodríguez, et al. Fluorescence and Bioluminescence Imaging of Subcellular Ca2+ in Aged Hippocampal Neurons. J. Vis. Exp. (2015). This video demonstrates the use of fluorescence imaging to measure cytosolic calcium levels in short-term and long-term rat hippocampal cultures. By comparing young and aged neurons, it highlights how increased L-type voltage-gated calcium channel density and prolonged activation in aged neurons result in calcium overloading, a hallmark of neuronal aging.
09:58
C. elegans Positive Butanone Learning, Short-term, and Long-term Associative Memory Assays
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Cited by 99 •
2011
Here we describe methods to test C. elegans associative learning and short- and long-term associative memory. These population assays employ the worms abilities to chemotax toward volatile odorants, and form positive associations upon pairing food with the chemoattractant butanone. Increasing the number of conditioning periods induces long-term memory.
FAQs
Repeated neural activity can convert an initially temporary response into a more stable functional adjustment by changing synaptic strength, circuit connectivity, and gene expression. These changes operate at different levels: synapses alter communication, connectivity reshapes how circuits interact, and gene expression supports longer-lasting cellular states. Together, they provide a mechanism for persistent adaptation rather than a momentary reaction.
Gene expression matters because it can help ongoing neural activity outlast the stimulus pattern that first produced it. While altered synaptic strength and circuit connectivity change how neurons communicate, changes in which genes are expressed can stabilize those adjustments over time. This makes gene regulation a key link between repeated activity and durable changes in neural function.
Short-lived responses primarily reflect the immediate effect of a stimulus, whereas long-term adaptation reflects a more persistent adjustment after repeated stimulation or continuing conditions. The distinction is therefore based on durability and underlying change, not simply on whether neural activity increases or decreases. Examining synaptic strength, circuit connectivity, and gene expression helps connect an observed response with its longer-term neural basis.
When environmental conditions or sensory input remain altered, neural adjustments can recalibrate system function to those demands. Long-term adaptation provides a framework for relating the continuing condition to changes in synaptic strength, circuit connectivity, and gene expression. In neuroscience, this makes sensory recalibration a central example of how persistent input can reshape neural processing.
By linking repeated neural activity with stable changes in synaptic strength, connectivity, and gene expression, long-term adaptation offers a cellular and circuit basis for why some effects of experience persist. In learning and memory research, this framework connects immediate neural responses to enduring functional changes, helping relate plasticity at the cellular level to retained behavioral consequences.
Long-term adaptation is relevant to research on development, rehabilitation, neurological disease, and interventions intended to restore or reshape neural function. It also organizes investigation of chronic stress, pain, and altered sensory input by asking how persistent conditions become reflected in neural systems. This perspective links cellular plasticity with behavior, allowing studies to examine both neural change and functional outcome.