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Study · Randomized controlled trial · n = 62 · 2015

4 results

Oxytocin facilitates the extinction of conditioned fear in humans.

Eckstein M, Becker B, Scheele D, Scholz C, Preckel K, Schlaepfer TE, Grinevich V, Kendrick KM, Maier W, Hurlemann R

Biological psychiatry30 Oct 2014Cited by 175 (Europe PMC)

Summary

The text of this summary is not shown here, because the article license does not allow reuse. Read it at the source (opens in a new tab)

Text rights: Publisher copyright. Results still quote short attributed sentences.

Results from this study4

4 results from studies that gave the peptide. 4 results from people.

  1. 01HumanRandomized controlled trialEfficacy outcome

    In healthy men, intranasal oxytocin given after fear conditioning increased electrodermal responses to conditioned fear in the early phase of extinction.

    In plain wordsIn healthy men, oxytocin nasal spray raised skin responses to a learned fear cue early in extinction compared with placebo.

    Peptide
    Oxytocin
    Outcome
    IncreaseElectrodermal responses to conditioned fear, early extinction
    Study

    n = 62

    Comparator
    Placebo
    Outcome group
    Anxiety and mood · Mental health and mood
    Studied dose
    24 IU · intranasalAs given in this study (human).

    Source sentences

    Summary
    Oxytocin, when administered intranasally after Pavlovian fear conditioning, was found to increase electrodermal responses and prefrontal cortex signals to conditioned fear in the early phase of extinction and to enhance the decline of skin conductance responses in the late phase of extinction.
    2 context sentences
    Summary · context
    To address the question whether oxytocin can strengthen Pavlovian extinction beyond its role in controlling social fear, we conducted a functional magnetic resonance imaging experiment with 62 healthy male participants in a randomized, double-blind, parallel-group, placebo-controlled design.
    Summary · context
    Specifically, subjects were exposed to a Pavlovian fear conditioning paradigm before receiving an intranasal dose (24 IU) of synthetic oxytocin or placebo.
  2. 02HumanRandomized controlled trialEfficacy outcome

    In healthy men, intranasal oxytocin given after fear conditioning increased prefrontal cortex signals to conditioned fear in the early phase of extinction.

    In plain wordsIn healthy men, oxytocin nasal spray raised brain signals in a front brain region to a learned fear cue early in extinction compared with placebo.

    Peptide
    Oxytocin
    Outcome
    IncreasePrefrontal cortex signals to conditioned fear, early extinction
    Study

    n = 62

    Comparator
    Placebo
    Outcome group
    Anxiety and mood · Mental health and mood
    Studied dose
    24 IU · intranasalAs given in this study (human).

    Source sentences

    Summary
    Oxytocin, when administered intranasally after Pavlovian fear conditioning, was found to increase electrodermal responses and prefrontal cortex signals to conditioned fear in the early phase of extinction and to enhance the decline of skin conductance responses in the late phase of extinction.
    2 context sentences
    Summary · context
    To address the question whether oxytocin can strengthen Pavlovian extinction beyond its role in controlling social fear, we conducted a functional magnetic resonance imaging experiment with 62 healthy male participants in a randomized, double-blind, parallel-group, placebo-controlled design.
    Summary · context
    Specifically, subjects were exposed to a Pavlovian fear conditioning paradigm before receiving an intranasal dose (24 IU) of synthetic oxytocin or placebo.
  3. 03HumanRandomized controlled trialEfficacy outcome

    In healthy men, intranasal oxytocin enhanced the decline of skin conductance responses in the late phase of extinction.

    In plain wordsIn healthy men, oxytocin nasal spray made skin responses to a learned fear cue fall faster late in extinction compared with placebo.

    Peptide
    Oxytocin
    Outcome
    IncreaseDecline of skin conductance responses, late extinction
    Study

    n = 62

    Comparator
    Placebo
    Outcome group
    Anxiety and mood · Mental health and mood
    Studied dose
    24 IU · intranasalAs given in this study (human).

    Source sentences

    Summary
    Oxytocin, when administered intranasally after Pavlovian fear conditioning, was found to increase electrodermal responses and prefrontal cortex signals to conditioned fear in the early phase of extinction and to enhance the decline of skin conductance responses in the late phase of extinction.
    2 context sentences
    Summary · context
    To address the question whether oxytocin can strengthen Pavlovian extinction beyond its role in controlling social fear, we conducted a functional magnetic resonance imaging experiment with 62 healthy male participants in a randomized, double-blind, parallel-group, placebo-controlled design.
    Summary · context
    Specifically, subjects were exposed to a Pavlovian fear conditioning paradigm before receiving an intranasal dose (24 IU) of synthetic oxytocin or placebo.
  4. 04HumanRandomized controlled trialEfficacy outcome

    In healthy men, intranasal oxytocin evoked an unspecific inhibition of amygdalar responses in both phases of extinction.

    In plain wordsIn healthy men, oxytocin nasal spray lowered activity in the amygdala, a fear-related brain region, in both phases compared with placebo.

    Peptide
    Oxytocin
    Outcome
    DecreaseAmygdalar responses in both extinction phases
    Study

    n = 62

    Comparator
    Placebo
    Outcome group
    Brain and neuronal activity · Mental health and mood
    Studied dose
    24 IU · intranasalAs given in this study (human).

    Source sentences

    Summary
    Oxytocin also evoked an unspecific inhibition of amygdalar responses in both phases.
    2 context sentences
    Summary · context
    To address the question whether oxytocin can strengthen Pavlovian extinction beyond its role in controlling social fear, we conducted a functional magnetic resonance imaging experiment with 62 healthy male participants in a randomized, double-blind, parallel-group, placebo-controlled design.
    Summary · context
    Specifically, subjects were exposed to a Pavlovian fear conditioning paradigm before receiving an intranasal dose (24 IU) of synthetic oxytocin or placebo.

AI wrote and checked these results. AI can make mistakes, so check important results against the source.

Version history

PepBank keeps every version of the data on this study. Status changes from Retraction Watch, Europe PMC and Crossref are listed with their source.

  1. Version 2Current

    11 Oct 2026, 01:30 UTC

    Study results updated

  2. Version 1

    9 Oct 2026, 02:49 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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