Forced Abstinence
Forced Abstinence - Related Videos
10:35
A Procedure to Study the Effect of Prolonged Food Restriction on Heroin Seeking in Abstinent Rats
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Cited by 11 •
2013
A procedure that allows a demonstration of robust augmentation of drug seeking in food-restricted rats is described. Following heroin self-administration training, rats go through an abstinence period, in a drug-free environment, during which they are mildly food restricted. Drug seeking is then tested in the drug-associated environment.
03:13
Intermolecular Forces
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2020
Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen bonds, and dispersion...
08:00
Force and Acceleration
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2023
Source: Nicholas Timmons, Asantha Cooray, PhD, Department of Physics & Astronomy, School of Physical Sciences, University of California, Irvine, CA The goal of this experiment is to understand the components of force and their relation to motion through the use of Newton's second law by measuring the acceleration of a glider being acted upon by a force. Nearly every aspect of motion in everyday life can be described using Isaac Newton's three laws of motion. They describe how objects in...
02:36
Electromotive Force
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2020
Electricity is generated by either electrons or ions flowing through a solution or a conducting medium. This flow of electrons or specifically electrical charge is defined as an electric current. When electrons move through a wire, they generate an electric current. It can be recalled that in a redox reaction, electrons are lost and gained. In the spontaneous redox reaction of zinc with copper, when zinc is immersed in a copper ion solution, a transfer of electrons from one substance to...
03:00
Intermolecular vs Intramolecular Forces
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2020
Intermolecular forces (IMF) are electrostatic attractions arising from charge-charge interactions between molecules. The strength of the intermolecular force is influenced by the distance of separation between molecules. The forces significantly affect the interactions in solids and liquids, where the molecules are close together. In gases, IMFs become important only under high-pressure conditions (due to the proximity of gas molecules). Intermolecular forces dictate the physical properties of...
FAQs
Removing access can expose adaptations in circuits that regulate reward, stress, motivation, and learning. These changes reflect how the brain responds when previously available reward exposure is interrupted. Examining several systems together helps researchers determine whether altered motivation or stress-related function contributes to later drug-seeking and other relapse-like responses.
Cue-related responses can persist because addiction-related learning is not necessarily erased when access ends. Environmental or drug-associated signals may continue to activate craving and motivate drug-seeking, even after the immediate reward is unavailable. Studying these responses allows researchers to examine how learned associations contribute to the persistence of addiction-related memories.
Withdrawal-related changes arise from interrupted exposure and can involve reward, stress, motivation, and learning circuits. Cue-triggered craving reflects the continuing influence of learned drug associations. Separating these processes helps neuroscience studies assess whether later drug-seeking is linked primarily to neural adaptation during abstinence, persistent memories, or responses to drug-associated signals.
Researchers remove access to the previously used drug or behavior and then examine changes across the abstinence period. Measurements can include withdrawal-related neural changes, responses to drug-associated cues, craving-related behavior, and relapse-like drug-seeking. Tracking these outcomes over time shows whether addiction-related adaptations and memories persist, change, or become more evident.
Relapse-like behavior provides an observable outcome after access has been interrupted. Researchers can examine whether drug-associated cues are followed by renewed drug-seeking, using that response to study the persistence of motivational and learning-related adaptations. This approach connects neural changes during abstinence with behavior relevant to relapse and long-term recovery.
The model identifies neural and behavioral processes that may continue after drug access stops, including altered reward and stress function, cue-evoked craving, and persistent addiction-related memories. Understanding these processes can guide theories of substance use disorder and help evaluate interventions designed to support recovery over longer periods rather than focusing only on stopping immediate access.