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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: Child Dev. 2013 Dec 16;85(4):1503–1518. doi: 10.1111/cdev.12206

Figure 1.

Figure 1

(A) Infant wearing head-mounted eye-tracker. (B) Example gaze video frame exported from Yarbus software. Caregiver is pictured in the middle toy height condition. Red crosshairs indicate infant’s point of gaze; white dotted line indicates gaze locations that were scored as looks to the caregiver. (C) Striped walkway and curtain apparatus. Caregiver is pictured in the low toy height condition. The experimenter followed behind infants to ensure their safety on the walkway and an assistant followed to keep the wires out of the way.