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Related Experiment Video

Updated: Jan 19, 2026

Infant Auditory Processing and Event-related Brain Oscillations
06:34

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Published on: July 1, 2015

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Development of Center-Surround Suppression in Infant Motion Processing.

Yusuke Nakashima1, Masami K Yamaguchi2, So Kanazawa3

  • 1Department of Psychology, Chuo University, Tokyo 192-0393, Japan; Japan Society for the Promotion of Science, Tokyo 102-0083, Japan.

Current Biology : CB
|September 10, 2019
PubMed
Summary

Infant visual perception of motion changes with age. Early infancy shows broad motion sensitivity, which refines to narrow, suppressed perception by 8 months, reflecting visual cortex development.

Keywords:
developmentinfantmotion perceptionreceptive fieldsurround suppressionvisual perception

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Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Visual Perception

Background:

  • Perceptual phenomena like surround suppression influence motion direction perception in adults.
  • Surround suppression, a visual cortex receptive field property, makes large patterns harder to perceive than small ones.
  • The developmental trajectory of surround suppression in human infants remains largely unexplored.

Purpose of the Study:

  • To investigate the emergence of surround suppression in human infant visual perception.
  • To determine the age at which infants develop sensitivity to motion direction comparable to adults.
  • To examine developmental changes in spatial summation areas for motion perception.

Main Methods:

  • Presenting large and small high-contrast motion stimuli to infants aged 3-8 months.
  • Measuring motion sensitivity in infants using psychophysical methods.
  • Analyzing changes in spatial summation area size across different infant age groups.

Main Results:

  • Infants 7-8 months old demonstrated higher motion sensitivity to small stimuli, unlike younger infants.
  • Infants under 6 months showed greater motion sensitivity to large stimuli.
  • The spatial summation area for motion perception was observed to shrink between 3 and 8 months of age.

Conclusions:

  • Infants develop surround suppression in the latter half of their first year.
  • Early infant motion perception is characterized by broad spatial summation without surround suppression.
  • Developmental changes in receptive field structure likely underlie these perceptual shifts in the first year of life.