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Event Related Potentials in Infants and Adults

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00088712
Recruitment Status : Completed
First Posted : August 2, 2004
Last Update Posted : September 10, 2019
Information provided by (Responsible Party):
National Institutes of Health Clinical Center (CC) ( Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) )

Tracking Information
First Submitted Date July 30, 2004
First Posted Date August 2, 2004
Last Update Posted Date September 10, 2019
Study Start Date July 28, 2004
Primary Completion Date Not Provided
Current Primary Outcome Measures
 (submitted: September 17, 2014)
EEG response [ Time Frame: Once following enrollment ]
Original Primary Outcome Measures Not Provided
Change History
Current Secondary Outcome Measures Not Provided
Original Secondary Outcome Measures Not Provided
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
Descriptive Information
Brief Title Event Related Potentials in Infants and Adults
Official Title Event Related Potentials From Infancy to Adulthood
Brief Summary

This study will explore the development of visual perception and the brain activity that underlies it. It will examine electrical activity in the brain while people are processing characteristics of the visual environment, and how that processing might change with development.

Infants who are within 2 weeks on either side of their 4-month birthday may be eligible for this study. A parent of the child also participates.

Parents who join the study are asked basic questions about their family, such as its size and ethnic make-up, their infant's birth date, complications of pregnancy or delivery, and any health problems of the infant, such as congenital developmental disorders or visual abnormalities.

Each family is seen at the clinic one time for a 45-minute visit. The infant is outfitted with an elastic net containing many small sensors that make contact with the scalp. He or she is then shown pictures on a computer screen. The sensors in the head net are connected to a computer that records the infant's brain activity while the infant watches the pictures on the screen. The head net is moistened with warm water before being applied, and is not uncomfortable to wear. Towels are available throughout the session to dry any excess moisture from the net.

Detailed Description The major objective of this research is to better understand the response of the brain to significant stimulation in early and later development. The proposed work is designed to examine infants', children's, and adults' (especially mothers') responses to salient features of the external environment. To do so, the present research studies the biological bases and behavioral significance of natural preferences and information processing. The primary research strategy to be used consists of analyzing behavioral and brain responses to visual patterns. In a laboratory procedure, subjects will explore patterns and their brain electrical activity will be measured simultaneously with an electronic analysis system. In specific, five experiments of visual attention in human infants, and 1 experiment in adults are proposed. In the first experiment with infants, babies are hypothesized to look longer at more saturated colors; in a second experiment, babies are hypothesized to look longer at gratings aligned along the vertical and horizontal orthogonals than along the obliques. Because saturated colors and orthogonal stimulation elicit greater activity in visual system neurons and greater amplitude evoked potentials than desaturated colors or oblique stimulation, respectively, these two experiments explore the hypothesis that the simple visual stimuli to which infants preferably attend are those that are particularly appropriate in stimulating the geniculostriate or primary visual system. In the third experiment, we plan to trace the ontogeny of the mature brain response to whole patterns as opposed to parts of patterns. In a fourth experiment, we intend to compare region-specific activity when the surface features of a familiarized visual target change to that when its location changes. In the fifth experiment, we examine individual differences in the power metrics associated with attention to visual stimuli in relation to individual differences in their corresponding behavior coded by observers. In an experiment with children and adults we will explore brain responses and their localization in to pictures of familiar and unfamiliar faces.
Study Type Observational
Study Design Observational Model: Cohort
Time Perspective: Cross-Sectional
Target Follow-Up Duration Not Provided
Biospecimen Not Provided
Sampling Method Not Provided
Study Population Not Provided
  • Healthy
  • Child Development
Intervention Not Provided
Study Groups/Cohorts Not Provided
Publications *

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Recruitment Information
Recruitment Status Completed
Actual Enrollment
 (submitted: August 27, 2019)
Original Enrollment
 (submitted: June 23, 2005)
Study Completion Date August 26, 2019
Primary Completion Date Not Provided
Eligibility Criteria

Participants will be selected for inclusion in this study and each to follow on the basis of age, gestational status (i.e., full-term vs. pre-term birth), visual normality, and general health status. Once the recruitment letters have been mailed, a brief screening interview will be conducted with all parents who call to express an interest in participating. These parents will be asked about their infants birth date, expected due date, and any diagnoses of severe perinatal complications, visual abnormalities, and congenital developmental disorders. Infants with a gestational age of less than 36 weeks, and/or those with histories of severe perinatal complications, visual abnormalities, or a family history of color-vision deficiency will not be recruited for participation. Equal numbers of males and females will be recruited to participate.

Sexes Eligible for Study: All
Ages 3 Months to 45 Years   (Child, Adult)
Accepts Healthy Volunteers No
Contacts Contact information is only displayed when the study is recruiting subjects
Listed Location Countries United States
Removed Location Countries  
Administrative Information
NCT Number NCT00088712
Other Study ID Numbers 040250
Has Data Monitoring Committee Not Provided
U.S. FDA-regulated Product
Studies a U.S. FDA-regulated Drug Product: No
IPD Sharing Statement Not Provided
Responsible Party National Institutes of Health Clinical Center (CC) ( Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) )
Study Sponsor Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Collaborators Not Provided
Principal Investigator: Clay W. Mash, Ph.D. Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
PRS Account National Institutes of Health Clinical Center (CC)
Verification Date August 26, 2019