The Effects of Therapy Dogs on Child Biology and Behavior

NCT ID: NCT03949569

Last Updated: 2024-09-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

188 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-06-15

Study Completion Date

2022-01-31

Brief Summary

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The objective of this study is to apply a rigorous experimental design to test whether children's interactions with therapy dogs increase immediate prosocial behavior and reduce immediate biological response to stress.

Detailed Description

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The central goal of the study is to determine whether brief interactions with a therapy dog have an immediate impact on children's biological response to stress, prosocial behaviors, and self-reported mood in comparison to interactions with a stuffed toy dog. The study uses a randomized crossover design with two study arms; all children will receive the both interventions during the same session, with the timing of the intervention randomized across subject. All outcomes will be assessed during a single study visit. No follow-up data will be collected.

The study uses both between-group and within-subject comparisons. Between groups, the investigators predict that children who interact with a therapy dog prior to a psychosocial stress task (Arm 1) will show attenuated cortisol response to the stress task (primary outcome) and reduced physiological stress (secondary outcomes) compared to children who interact with a stuffed toy dog prior to the psychosocial stress task (Arm 2). As an additional control, children will also watch a 5 minute puppy video prior to the prosocial stress task and will then interact with a stuffed toy dog prior to the psychosocial stress task (Arm 3).

Conversely, children who interact with the therapy dog immediately prior to the in-lab behavior tasks (Arm 2) will show higher levels of behavioral carefulness and prosocial behavior (primary outcomes) compared to children who interact with the stuffed toy dog prior to the behavior tasks (Arm 1).

Within subjects across both study arms, increases in positive mood and decreases in negative mood (secondary outcomes) will be greatest following interaction with the therapy dog compared to the stuffed toy dog, after controlling for main effects of study arm. Within subjects, physiological markers of stress (secondary outcomes) will be lower during the interaction with the therapy dog than during interaction with the stuffed toy dog.

Investigators will seek additional funds to collect and analyze salivary oxytocin data. The hypothesis is that children will show greater increase in oxytocin following interaction with the therapy dog in comparison to interaction with the stuffed toy dog.

This study will also investigate the mechanisms through which child-dog interactions influence youth stress responsivity, using coded videotaped data from the subset of children in Arm 1 who interact with the therapy dog prior to the psychosocial stress task. It is hypothesized that child behaviors observed during the interaction, such as duration and frequency of eye gaze, petting and stroking behaviors, and use of positive affect, will be inversely correlated with change in cortisol response to stress. Dog behaviors, such as duration and frequency of eye gaze and approach behaviors, will be inversely correlated with children's change in cortisol response to stress.

The study will also investigate whether child characteristics moderate the effects of the child-dog interaction. Investigators hypothesize that the effects of the therapy dog intervention will be stronger among children who currently live with dogs versus non-dog owning children and among children with more positive attitudes towards pets. It is also expected that the effects of the therapy dog interaction will be weaker among children with internalizing problems and for children experiencing higher levels of general stress. Investigators will also test whether the effects of the therapy dog intervention vary across child gender, race/ethnicity, or socioeconomic status, or child personality.

Conditions

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Stress Reaction Behavior, Social

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

The investigators will use a randomized crossover design. All children will receive two interventions during a single study visit. Children will be assigned to one of three research design arms using a stratified random sampling approach with child sex balanced across arm (N=110 in each group). All children will participate in the same tasks, in the same order. The only difference between research design arms is the timing of the interventions. In one arm the child will interact with the therapy dog prior to the psychosocial stress test and will interact with the stuffed toy dog prior to the behavioral tasks; the reverse is true for children in the second arm. In the third arm, the child will watch a 5 minute puppy video prior to the psychosocial stress test and will interact with the stuffed toy dog prior to the behavioral tasks
Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

TRIPLE

Participants Caregivers Investigators
Participants will be unaware of which study arm they are assigned. Individuals performing the interventions will be blind to study condition. The investigator will be blind to study condition until data analysis. Video data will be coded by observers blind to the study condition. The primary outcomes assessor is not blind to study condition.

Study Groups

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Arm 1

In this condition, children will interact with the therapy dog prior to the psychosocial stress task and with the stuffed toy dog prior to the prosocial behavior tests.

Group Type EXPERIMENTAL

Therapy Dog

Intervention Type BEHAVIORAL

Children will undergo a 5 minute unstructured session with either a certified therapy dog or with a dog who is trained and certified for animal-assisted interventions and/or animal-assisted activities. Children will be allowed to talk to, pet, and play with the therapy dog during the interaction.

Stuffed Toy Dog

Intervention Type BEHAVIORAL

Children will undergo a 5 minute unstructured session with a stuffed toy dog. Children will be allowed to talk to, pet, and play with the stuffed toy dog during the interaction.

Arm 2

In this condition, children will interact with the stuffed toy prior to the psychosocial stress task collection and with the therapy dog prior to the prosocial behavior tests.

Group Type EXPERIMENTAL

Therapy Dog

Intervention Type BEHAVIORAL

Children will undergo a 5 minute unstructured session with either a certified therapy dog or with a dog who is trained and certified for animal-assisted interventions and/or animal-assisted activities. Children will be allowed to talk to, pet, and play with the therapy dog during the interaction.

Stuffed Toy Dog

Intervention Type BEHAVIORAL

Children will undergo a 5 minute unstructured session with a stuffed toy dog. Children will be allowed to talk to, pet, and play with the stuffed toy dog during the interaction.

Arm 3

In this condition, children will watch a 5 minute puppy video prior to the psychosocial stress task collection and with the therapy dog prior to the prosocial behavior tests.

Group Type EXPERIMENTAL

Stuffed Toy Dog

Intervention Type BEHAVIORAL

Children will undergo a 5 minute unstructured session with a stuffed toy dog. Children will be allowed to talk to, pet, and play with the stuffed toy dog during the interaction.

5 Minute Puppy Video

Intervention Type BEHAVIORAL

Children will watch a 5 minute puppy video.

Interventions

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Therapy Dog

Children will undergo a 5 minute unstructured session with either a certified therapy dog or with a dog who is trained and certified for animal-assisted interventions and/or animal-assisted activities. Children will be allowed to talk to, pet, and play with the therapy dog during the interaction.

Intervention Type BEHAVIORAL

Stuffed Toy Dog

Children will undergo a 5 minute unstructured session with a stuffed toy dog. Children will be allowed to talk to, pet, and play with the stuffed toy dog during the interaction.

Intervention Type BEHAVIORAL

5 Minute Puppy Video

Children will watch a 5 minute puppy video.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

\- Children between the ages of 8-12 years old

Exclusion Criteria

* Limited comprehension of English
* Severe neurological, medical, or psychiatric illnesses (e.g., schizophrenia, psychosis)
* Severe asthma or animal allergies
* Animal phobias
* Use of medications that affect cortisol
Minimum Eligible Age

8 Years

Maximum Eligible Age

12 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

NIH

Sponsor Role collaborator

University of Chicago

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Kristen C Jacobson, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Chicago

Locations

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University of Chicago Medical Center

Chicago, Illinois, United States

Site Status

Countries

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United States

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Other Identifiers

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R21HD094956

Identifier Type: NIH

Identifier Source: secondary_id

View Link

IRB18-0472

Identifier Type: -

Identifier Source: org_study_id

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