Depression Clinical Trial
Official title:
Enhancing Communication Between Children in EI and Their Depressed Mothers
This project will determine whether an intervention to enhance communication between infants
and toddlers with developmental disabilities and their depressed mothers can be integrated
into federally-funded Early Intervention (EI) services. Participants will be mothers with
depressive symptoms whose children are receiving EI services, along with their EI service
providers.
The investigators will conduct a small feasibility trial using the Language ENhancement
Assessment/intervention system (LENA), a technology-supported language monitoring system,
with 10 mothers and one of their child's EI service providers. The LENA uses an infant or
toddler garment with an integrated audiotape system that records adult speech centered on the
child, child vocalizations, and reciprocal parent-child turn-taking conversations. The LENA
software produces visual feedback that a mother can use to focus her language interactions
with her child. They study will follow participants in the LENA with feedback intervention
over 6 weeks: 5 weeks of LENA data collection (with mothers running the system 1 day/week for
16 consecutive hours). The investigators will analyze data from measures on LENA
communication data (adult word count, child vocalizations and conversational turn-taking),
and measures of child language, maternal depressive symptoms, and child disability profiles.
Early Intervention (EI) services are provided to infants and toddlers with documented
developmental delays in all 50 states and US territories. EI improves long-term
infant-toddler adaptation and lowers the cost of care if parents use the services. However,
depressive symptoms can reduce mothers' ability to provide the daily child
development-promoting activities recommended by EI, increasing the child's risk for
communication and behavioral problems. Indeed, repeated studies have shown that depressive
symptoms reduce mothers' consistent use of developmentally sensitive, child-centered speech
which, in turn, lead to negative child cognitive and behavioral outcomes. Previous research
showed that over one-third of mothers of children with disabilities have significant levels
of depressive symptoms, a rate higher than the population at large. Infants and toddlers of
depressed mothers have been shown to receive fewer intensive services and have been shown to
interfere with uptake of EI services through impaired mother-child interactions. A
preliminary study by the investigators found that over a third of mothers of infants and
toddlers enrolled in EI in a large North Carolina county had severe depressive symptoms and
depression histories. Fortunately, the investigators also found that when depressed mothers
were provided with concrete, attainable skills for improving interactions with their child,
the impact of depression on both mother and child was substantially reduced. Focusing on a
depressed mother's child-centered speech and reciprocal communication also improves child
outcomes, even when the child is cognitively compromised. However, none of these specialized
services are part of EI best practices. Thus, EI is an ideal setting in which to integrate
screening, referral and targeted skills for depressed mothers in order to improve
parent-child interactions and ultimately, child outcomes.
This project will develop an intervention focused on communication between infants and
toddlers with diagnosed or suspected developmental disabilities and their mothers who have
depressive symptoms. The primary aim of the study is to test the feasibility and initial
efficacy of embedding a language pedometer, the Language ENhancement Assessment/intervention
system (LENA), into EI to teach mothers to increase child-centered speech and reciprocal
communication, which have been linked to positive child outcomes, and to increase parenting
efficacy in depressed mothers of children in EI.
While maternal depressive symptoms can disrupt developmentally stimulating, child-centered
speech, simple tools to assess and provide feedback to mothers can improve the child-centered
speech and reciprocal language interactions that positively impact child outcomes. Although
the LENA has been used in other studies and shown improvements in mothers' child-centered
speech, the system has not been used with mothers showing depressive symptoms or in the EI
context. The investigators will examine the efficacy of using LENA in a
pre-/post-intervention design. Specifically, the investigators will examine whether mothers'
primarily independent use of the LENA with feedback has an impact on the child's language
environment, parenting efficacy and maternal depressive symptoms.
The investigators will also conduct follow up data collection with participating mothers,
which will be approximately 6 months after her last LENA recording. Follow up activities will
involve having the mother conduct one more LENA recording and provide survey information over
the phone, which will allow the investigators to determine residual effects of the study
interventions, additional demographic information, and feedback for future studies.
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