Oral Fixation
Oral Fixation - Related Videos
08:53
Whole Animal Perfusion Fixation for Rodents
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Cited by 531 •
2012
Here we describe a low-cost, rapid, controlled and uniform fixation procedure using 4% paraformaldehyde perfused via the vascular system: through the heart of the rat to obtain the best possible preservation of the brain.
01:03
Fixation and Sectioning
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2023
Two basic types of preparation are used to visualize specimens with a light microscope: wet mounts and fixed specimens. The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...
04:28
Utilizing an Orally Dissolving Strip for Pharmacological and Toxicological Studies: A Simple and Humane Alternative to Oral Gavage for Animals
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Cited by 4 •
2016
The following protocol describes a novel method for chronic oral drug administration using an orally dissolving strip (ODS) in lieu of the more commonly used oral gavage method. We demonstrate that preclinical, oral drug delivery using the ODS method represents a safe, convenient, and humane alternative to oral gavage.
10:21
Protocol for HER2 FISH Using a Non-cross-linking, Formalin-free Tissue Fixative to Combine Advantages of Cryo-preservation and Formalin Fixation
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Cited by 3 •
2017
Fluorescence in-situ hybridization (FISH) is often required in combination with histopathology and molecular diagnostics for selection of therapy in personalized medicine. A novel non-cross-linking, formalin-free tissue fixative that allows high quality morphologic, molecular and FISH analyses from the same specimen by addition of a post-fixation step before FISH is presented.
06:57
Instillation and Fixation Methods Useful in Mouse Lung Cancer Research
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Cited by 48 •
2015
The goal of this paper is to describe simple methods that will greatly aid in the setup and analysis of mouse lungs with lung cancer or other pathologies. We present 3 protocols to simply and reliably carry out lung instillations, fixation, and lung volume measurements.
FAQs
In Freud’s model, sucking and feeding serve more than nutritional purposes: they are described as sources of pleasure and security during infancy. This makes mouth-centered activity central to the oral stage and provides the theoretical basis for later interpreting persistent oral habits as possible expressions of unresolved developmental conflict.
The theory proposes that both frustration and excessive gratification can interfere with development during the oral stage. Either pattern may leave conflicts unresolved, creating a tendency toward fixation. This explanation is theoretical rather than a demonstrated causal rule, so the same adult behavior cannot automatically be attributed to a particular early experience.
Within the psychoanalytic framework, stress can prompt regression, meaning a return to earlier patterns associated with comfort or gratification. Oral behaviors such as biting, smoking, or overeating are therefore interpreted as possible responses to later tension. The model links these behaviors to developmental history, but does not establish that stress always produces them.
Oral fixation belongs primarily to the historical psychoanalytic tradition of personality theory. Contemporary psychology does not treat it as a broadly validated explanation for adult behavior. Its value today lies mainly in showing how earlier theories connected childhood development, personality, and coping behavior, while its proposed causal account requires appropriate historical and scientific caution.
A psychoanalytic interpretation may examine recurring mouth-centered habits in relation to gratification, frustration, unresolved conflict, and responses to stress. Behaviors such as biting, smoking, or overeating could be discussed within that framework as possible signs of regression. Such interpretation reflects the model’s clinical and theoretical influence, not a standalone confirmation of fixation.
Its main relevance is historical and conceptual. The idea helped shape personality theory and influenced clinical interpretations of behavior by emphasizing early developmental experiences and later coping patterns. Modern psychology generally treats the concept as a historical framework rather than a comprehensive account of adult habits, so it should not replace broader psychological evaluation.