NCT05144906

Brief Summary

High levels of body image concerns and disordered eating in western women have been associated with the promotion of an unrealistically thin body ideal. The pressure to conform with the thin-ideal forms both explicit and implicit attitudes favoring thinness. Visual-based media depicting thin-idealized bodies plays a major role in forming such attitudes. However, attitudes favoring thinness can also be transmitted through non-visual communication such as peer pressure and significant others. The current study will examine if implicit attitudes favoring thinness and disliking overweight bodies can be formed without ever being exposed to visual-based media or being visually exposed to body shapes. To achieve this goal, the study will assess implicit attitudes towards thin and overweight bodies in congenitally blind women and those who were blinded early in life. The assessment will be carried out using a novel auditory weight-bias implicit association test.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
64

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Dec 2021

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 17, 2021

Completed
14 days until next milestone

Study Start

First participant enrolled

December 1, 2021

Completed
2 days until next milestone

First Posted

Study publicly available on registry

December 3, 2021

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 15, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 15, 2022

Completed
Last Updated

July 6, 2022

Status Verified

November 1, 2021

Enrollment Period

7 months

First QC Date

November 17, 2021

Last Update Submit

July 5, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • Implicit Association Test

    IAT D-Score calculated for assessing an implicit weight bias. The IAT D score will be computed using the improved algorithm suggested by Greenwald et al. (2003). According to this algorithm, RTs longer than 10,000 ms will be deleted. Participants with more than 10% of the trials that are shorted than 300 ms will be excluded from the analysis. Mean RTs for correct trials will be computed for each block separately. Error trials will be replaced by the mean score of each block + 600 ms. Then, the difference in RTs between the practice stereotype incongruent and practice congruent conditions will be divided by their pooled SD. Then, the different in RTs between the test stereotype congruent and incongruent blocks will be divided by their pooled RTs. Lastly, the two scores form the practice and test blocks will be averaged to compute the IAT D score.

    One assessment at baseline after study information and informed consent was given

Secondary Outcomes (4)

  • Sociocultural Attitudes Toward Appearance Questionnaire-4 (SATAQ-4R)

    up to 72 hours after completion of the baseline assessment

  • Ideal Body Stereotype Scale-Revised (IBSS-R)

    up to 72 hours after completion of the baseline assessment

  • Body Parts Dissatisfaction Scale (BPDS)

    up to 72 hours after completion of the baseline assessment

  • Body mass index (BMI)

    up to 72 hours after completion of the baseline assessment

Study Arms (2)

Blind women

The blind women group will include women who are congenitally blind or that were blinded early in life (up to the age of 7).

Sighted women

Women with normal or corrected-to-normal eye sight.

Eligibility Criteria

Age18 Years - 45 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

The blind women group will only include women who were blinded earlier than the age of 7 and cannot see themselves in the mirror not recognize other people's faces or bodies or use visual-based media. The sighted women group will include women with normal or corrected-to-normal vision.

You may qualify if:

  • Aged 18-45 years.
  • Congenitally blind or blinded no later than the age of 7.
  • Inability to see themselves in the mirror.
  • Inability to recognize other people's faces or bodies.
  • Inability to use visual-based media.
  • Fluent English speakers.

You may not qualify if:

  • Any condition that prevents the ability to use a computer.
  • Sighted women
  • Aged 18-45 years old.
  • Corrected or corrected-to-normal vision.
  • Fluent English speakers.
  • Any condition that prevents the ability to use a computer.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Haifa

Haifa, Central District, 3600100, Israel

Location

MeSH Terms

Conditions

BlindnessBias, Implicit

Condition Hierarchy (Ancestors)

Vision DisordersSensation DisordersNeurologic ManifestationsNervous System DiseasesEye DiseasesSigns and SymptomsPathological Conditions, Signs and SymptomsPrejudiceSocial BehaviorBehavior

Study Officials

  • Noam Weinbach, PhD

    University of Haifa

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 17, 2021

First Posted

December 3, 2021

Study Start

December 1, 2021

Primary Completion

June 15, 2022

Study Completion

June 15, 2022

Last Updated

July 6, 2022

Record last verified: 2021-11

Data Sharing

IPD Sharing
Will share

The study will provide open access for de-identified data as well as for the analytical plan and protocol.

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
Upon submission of a manuscript for publication
Access Criteria
Open access

Locations