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Related Experiment Video

Updated: Jun 3, 2026

Experience is Instrumental in Tuning a Link Between Language and Cognition: Evidence from 6- to 7- Month-Old Infants' Object Categorization
05:35

Experience is Instrumental in Tuning a Link Between Language and Cognition: Evidence from 6- to 7- Month-Old Infants' Object Categorization

Published on: April 19, 2017

Same items, different order: effects of temporal variability on infant categorization.

Emily Mather1, Kim Plunkett

  • 1Department of Experimental Psychology, University of Oxford, United Kingdom. e.mather@warwick.ac.uk

Cognition
|March 9, 2011
PubMed
Summary
This summary is machine-generated.

Infants’ category learning is affected by the order of item presentation. Presenting items with greater perceptual differences first helps infants better distinguish category members from atypical examples.

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Area of Science:

  • Cognitive Psychology
  • Developmental Psychology
  • Infant Learning

Background:

  • Understanding how infants form categories is crucial for cognitive development research.
  • Variability within categories poses a challenge for category learning in infants.

Purpose of the Study:

  • To investigate how the order of exemplar presentation influences 10-month-old infants' category learning.
  • To determine if minimizing or maximizing perceptual distance between successive items impacts categorization performance.

Main Methods:

  • Two groups of 10-month-old infants were exposed to category exemplars.
  • A low-distance group saw items with minimal perceptual differences consecutively.
  • A high-distance group saw items with maximal perceptual differences consecutively.

Main Results:

  • Infants in the high-distance condition demonstrated reliable discrimination between a category prototype and an atypical exemplar.
  • Infants in the low-distance condition did not show the same level of discrimination.

Conclusions:

  • The order of stimulus presentation significantly impacts infants' ability to learn and generalize categories.
  • Moment-to-moment variations in perceptual similarity play a critical role in infant categorization.