NCT00001950

Brief Summary

It is commonly believed that objects in the world can be categorized in at least three different ways or levels. The three levels are basic, superordinate, and subordinate. Previously it was believed that basic categorization presents a cognitive (mental) advantage to children's development. However, recent studies on superordinate categorization has challenged this belief.

  1. 1.\<TAB\>Items in superordinate are grouped according to functional purpose, even though they may not share any similarities in how they look (perception). For instance, desks, chairs, and beds do not appear similar but they can be group together in the superordinate category of furniture.
  2. 2.\<TAB\>Items in basic categorization share similarities in function and in perception. For instance, chairs can be considered as a basic category. Chairs can share functional and perceptual similarities with many kinds of chairs but are readily distinguished from other types of furniture like beds or desks.
  3. 3.\<TAB\>Subordinate categories are subsets of basic categories. For instance, kitchen chairs, desk chairs, and high chairs, are all within the basic category of chairs. Each one is very similar in it's function to the others but is definitely discriminable.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
219

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Dec 1999

Longer than P75 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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 14, 1999

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

January 18, 2000

Completed
1 day until next milestone

First Posted

Study publicly available on registry

January 19, 2000

Completed
12.4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

May 23, 2012

Completed
Last Updated

September 13, 2018

Status Verified

May 23, 2012

First QC Date

January 18, 2000

Last Update Submit

September 12, 2018

Conditions

Cognition DisorderHealthy

Keywords

CognitionInfancyPerception

Eligibility Criteria

Age1 Year - 3 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Infants must be healthy.
  • Normal pregnancy/delivery status, term birth (plus or minus 14 days from due date), and no evidence of subsequent visual impairments or neurological disorders.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Institutes of Health Clinical Center, 9000 Rockville Pike

Bethesda, Maryland, 20892, United States

Location

Related Publications (2)

  • Mandler JM, McDonough L. On developing a knowledge base in infancy. Dev Psychol. 1998 Nov;34(6):1274-88. doi: 10.1037//0012-1649.34.6.1274.

    PMID: 9823512BACKGROUND

  • Sugarman S. The cognitive basis of classification in very young children: an analysis of object-ordering trends. Child Dev. 1981;52(4):1172-8.

    PMID: 7318519BACKGROUND

MeSH Terms

Conditions

Cognition Disorders

Condition Hierarchy (Ancestors)

Neurocognitive DisordersMental Disorders

Study Officials

  • Marc H Bornstein, Ph.D.

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

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Sponsor Type
NIH

Study Record Dates

First Submitted

January 18, 2000

First Posted

January 19, 2000

Study Start

December 14, 1999

Study Completion

May 23, 2012

Last Updated

September 13, 2018

Record last verified: 2012-05-23

Locations

US(1)