Motion-based detection by 14-week-old infants
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Updated: Nov 7, 2026

Quantified Assessment of Infant's Gross Motor Abilities Using a Multisensor Wearable
Published on: May 17, 2024
J L Dannemiller1, R L Freedland
1Department of Psychology, University of Wisconsin, Madison 53706.
Abstract:
Three experiments using standing wave stimuli with 14-week-old human infants are reported. Two competing hypotheses regarding the detection of these standing wave line stimuli were tested in these studies. Amplitude-based (positional) detection was contrasted with speed-based (motion) detection. Temporal oscillation frequencies of 0.15, 0.30, 0.60 and 1.20 Hz were used. The detectability of a standing wave of fixed amplitude was influenced significantly by the temporal frequency of the oscillation. By inference, the results of the three experiments supported the motion-based detection hypothesis.
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