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A Method for Tracking the Time Evolution of Steady-State Evoked Potentials
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Overt and covert attention in infants revealed using steady-state visually evoked potentials

Joan Christodoulou1, David S Leland2, David S Moore3

  • 1Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles.

Developmental Psychology
|December 29, 2017
PubMed

Insights

Steady-state visually evoked potential (SSVEP) measures show robust infant attention habituation and recovery. This method is more sensitive than looking-time for studying early cognitive development and infant attention.

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Cognitive Science

Background:

  • Looking-time methods are traditional for infant attention research.
  • Steady-state visually evoked potentials (SSVEP) offer potential advantages in sensitivity and practicality.
  • Infant attention and cognitive development are key research areas.

Purpose of the Study:

  • To demonstrate SSVEP habituation and recovery in infants.
  • To compare SSVEP sensitivity with looking-time measures.
  • To investigate infant covert attention using SSVEPs.

Main Methods:

  • Presented flickering checkerboard stimuli to infants.
  • Measured SSVEP amplitudes in response to stimuli.
  • Recorded infant looking time concurrently.
  • Investigated responses to peripheral stimuli during central fixation.

Main Results:

  • Demonstrated habituation and recovery of SSVEP amplitudes.
  • SSVEP modulation was more robust than looking-time modulation.
  • Found enhanced SSVEPs for covertly attended peripheral stimuli.
  • Provided first evidence of sustained infant covert attention via SSVEPs.

Conclusions:

  • SSVEP habituation and recovery are reliable infant attention indicators.
  • SSVEPs are a sensitive and efficient measure for infant cognitive studies.
  • SSVEPs can effectively measure both overt and covert infant attention.

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