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A Method for Tracking the Time Evolution of Steady-State Evoked Potentials
Published on: May 25, 2019
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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
Summary
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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