Infant timekeeping: attention and temporal estimation in 4-month-olds.

  title={Infant timekeeping: attention and temporal estimation in 4-month-olds.},
  author={John Colombo and W. Allen Richman},
  journal={Psychological science},
  volume={13 5},
Four-month-old infants were exposed to sequences in which a 2-s light stimulus alternated with dark interstimulus periods whose length was manipulated to be 3 or 5 s. A predictable on-off pattern occurred for eight trials, but the light stimulus was omitted on the ninth trial. Infants showed heart rate responses on the omission trial that were closely synchronized with the expected recurrence of the stimulus. In addition, these heart rate patterns were observed predominantly in infants who had… CONTINUE READING

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