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Related Concept Videos

Classical Conditioning in Daily Life01:17

Classical Conditioning in Daily Life

Classical conditioning, a fundamental principle of associative learning, explains various phenomena observed in daily life, such as fear development, the placebo effect, taste aversion, and drug habituation. These applications demonstrate the profound impact of associative learning on human behavior and physiological responses.
John B. Watson and Rosalie Rayner famously demonstrated the development of fear through classical conditioning in their experiment with Little Albert. They paired the...
Purposive Learning01:22

Purposive Learning

E. C. Tolman emphasized the purposiveness of behavior — the idea that much of our behavior is goal-directed. For instance, employees who aim for a promotion work diligently to meet their targets. Tolman argued that when classical conditioning and operant conditioning occur, the organism acquires certain expectations. In classical conditioning, a child might fear a dog because they expect it to bite. In operant conditioning, a person might consistently work overtime because they expect a bonus...
Blind Procedures02:07

Blind Procedures

Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which child was...
Associative Learning01:27

Associative Learning

Associative learning is a fundamental concept in behavioral psychology, wherein a connection is established between two stimuli or events, leading to a learned response. This process is critical in understanding how behaviors are acquired and modified. Conditioning, the mechanism through which associations are formed, can be divided into two main types: classical conditioning and operant conditioning, each elucidating different aspects of associative learning.
Classical conditioning, also known...
Analgesia and Pain Management01:25

Analgesia and Pain Management

Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...
The Placebo Effect01:54

The Placebo Effect

The placebo effect occurs when people's expectations or beliefs influence or determine their experience in a given situation. In other words, simply expecting something to happen can actually make it happen.

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Related Experiment Video

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Investigating Pain-Related Avoidance Behavior using a Robotic Arm-Reaching Paradigm
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Investigating Pain-Related Avoidance Behavior using a Robotic Arm-Reaching Paradigm

Published on: October 3, 2020

Implicit versus explicit associative learning and experimentally induced placebo hypoalgesia.

Andrea L Martin-Pichora1, Tsipora D Mankovsky-Arnold, Joel Katz

  • 1Department of Psychology, York University, Toronto, ON, Canada;

Journal of Pain Research
|May 12, 2011
PubMed
Summary

This study found that placebo hypoalgesia (pain relief) requires conscious expectations, not just implicit learning. Explicitly stating expectations abolished the placebo effect, highlighting the role of cognitive mediation in pain perception.

Keywords:
associative learningexpectancyimplicit learningplacebo hypoalgesia

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Area of Science:

  • Neuroscience
  • Psychology
  • Pain Research

Background:

  • Placebo effects in pain management are well-documented.
  • The role of conscious versus unconscious learning in generating placebo analgesia remains unclear.

Purpose of the Study:

  • To investigate if implicit associative learning can induce placebo hypoalgesia.
  • To determine how explicit expectations influence the magnitude of placebo hypoalgesia.

Main Methods:

  • A 2x2 design assessed placebo effects with and without verbal information about cream application.
  • Heat pain stimuli temperature was manipulated during conditioning trials.
  • Participants' awareness and confidence in cream identification were recorded.

Main Results:

  • A significant placebo effect was observed with explicit verbal information, but not with implicit conditioning alone.
  • Despite lack of awareness, many participants who showed implicit conditioning could guess cream order.
  • Explicitly stated expectations abolished the placebo response.

Conclusions:

  • Implicit associative learning alone is insufficient for placebo hypoalgesia; explicit expectations or cognitive mediation appear necessary.
  • The magnitude of placebo hypoalgesia is modulated by the explicitness of expectations.
  • A complex interplay between attention and expectation influences placebo responses in pain management.