Baby Dvd Effects on Cortisol

A Randomized Controlled Trial of Block Play vs Dvd Viewing

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01459848

Enrollment

Registered

2011-10-26

Start date

2011-01-31

Completion date

2012-01-31

Last updated

2014-03-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Infant Development

Keywords

Salivary cortisol measured after DVD watching or block play

Brief summary

The investigators will do an experiment where 9-12 month old infants are randomized to 30 minutes of block play or 30 minutes of watching a baby DVD.

Interventions

BEHAVIORALblock play

30 minutes of block play

BEHAVIORALbaby dvd

30 minutes of dvd viewing

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Masking

DOUBLE (Investigator, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

9 Months to 12 Months

Healthy volunteers

Yes

Inclusion criteria

* 9-12 months of age

Design outcomes

Primary

Measure	Time frame	Description
salivary cortisol	Baseline	Study will be assessing babies' neuroendocrine responses to play vs TV viewing. Salivary cortisol, as an indicator of neuroendocrine response, will be measured over time with the intervals as specified under time frame. For each time point, investigator will adjust for prior ones in a repeated measures analysis.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026