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Related Concept Videos

Classical Conditioning01:18

Classical Conditioning

Associative learning, a core principle in behavioral psychology, involves forming connections between events and facilitating learned responses. This concept is vividly illustrated by classical conditioning, a process extensively studied by the Russian physiologist Ivan Pavlov. Pavlov's pioneering research on dogs' digestive systems led to the discovery that behaviors can be learned through association, laying the groundwork for classical conditioning.
Ivan Pavlov observed that dogs salivated...
Principles of Classical Conditioning01:23

Principles of Classical Conditioning

Classical conditioning, as described by Ivan Pavlov, is a foundational concept in associative learning, where a neutral stimulus becomes capable of eliciting a conditioned response through association with an unconditioned stimulus. The process of acquisition, where this learning occurs, and the subsequent phenomena of contiguity, contingency, generalization, discrimination, extinction, and spontaneous recovery are crucial for a comprehensive understanding of classical conditioning.
During the...
Cells of the Adaptive Immune Response01:23

Cells of the Adaptive Immune Response

The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...
B Cell Activation and Differentiation01:24

B Cell Activation and Differentiation

The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
Immunological Memory01:23

Immunological Memory

Immunological memory, a pivotal pillar of the adaptive immune system, is responsible for the body's ability to remember and respond more swiftly and effectively to previously encountered pathogens. This remarkable feature is what makes vaccines so effective in preventing diseases.
What is Immunological Memory?
Immunological memory is an integral function of the immune system that allows it to recognize and react more rapidly and effectively to pathogens previously encountered. This feature is...
Special Features of Adaptive Immunity01:20

Special Features of Adaptive Immunity

The adaptive immune system, a crucial component of the overall immune response, offers a highly specialized defense against pathogens. It involves specific cell types and features, enabling it to combat infections effectively and efficiently.
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...

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A Novel Pavlovian Fear Conditioning Paradigm to Study Freezing and Flight Behavior
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A Novel Pavlovian Fear Conditioning Paradigm to Study Freezing and Flight Behavior

Published on: January 5, 2021

The learned immune response: Pavlov and beyond.

Manfred Schedlowski1, Gustavo Pacheco-López

  • 1Institute of Medical Psychology and Behavioral Immunobiology, University of Duisburg-Essen, Medical Faculty, 45122 Essen, Germany. manfred.schedlowski@uk-essen.de

Brain, Behavior, and Immunity
|August 25, 2009
PubMed
Summary
This summary is machine-generated.

Learned immune responses link physiological changes to flavors, protecting organisms. This neurobiological mechanism explains how the brain uses learned cues to harness the immune system, with potential therapeutic applications.

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Area of Science:

  • Neuroimmunology
  • Behavioral neuroscience
  • Evolutionary biology

Background:

  • The study explores the evolutionary adaptive strategy of associating physiological changes with specific flavors for organism protection.
  • It highlights the bidirectional communication between the central nervous system (CNS) and the peripheral immune system in learned immune responses.

Discussion:

  • Investigates the neurobiological mechanisms underlying associative learning between sensory cues (conditioned stimulus) and immuno-modulating substances (unconditioned stimulus).
  • Examines the pathways and brain mechanisms that enable the immune system to be harnessed during conditioned immune responses.

Key Insights:

  • Specific immuno-modulating drug effects can be re-elicited by re-exposure to associated tastes, odors, or environments.
  • Learned immune responses demonstrate a sophisticated interplay between the brain and the immune system, mediated by associative learning.

Outlook:

  • Discusses the potential therapeutic relevance of learned immune responses.
  • Re-conceptualizes learned immune responses within the framework of "learned placebo effects" for future research and applications.