PMID: 9418224Jan 7, 1998Paper

Extended visual fixation in young infants: look distributions, heart rate changes, and attention

Child Development
J E Richards, T L Gibson

Abstract

Visual fixation in infants from 3 to 6 months of age was examined for its fit to the theory of "attentional inertia." This theory posits that during the progression of a look there is increasing attention toward the stimulus and an "inertia" to continue looking. An extended audiovisual stimulus was presented for 20 min to infants while fixation was videotaped and heart rate (HR) was recorded. Consistent with the attentional inertia theory, look duration toward the stimulus had a lognormal distribution. Hazard functions describing these distributions showed a decreasing conditional probability of looking away with increases in look duration. Look onset and stimulus changes that occurred within a look were accompanied by HR deceleration. The average HR level continued to decrease over the duration of a look and returned to prestimulus level immediately prior to the fixation offset. Infant fixation has characteristics similar to fixation in children and adults, and attention appears to increase over the course of a look in young infants.

References

Jul 1, 1991·Developmental Psychobiology·B J Casey, J E Richards
Jan 1, 1991·Psychophysiology·J E Richards, B J Casey
Sep 1, 1990·Psychophysiology·G G BerntsonS T Boysen
Apr 1, 1987·Child Development·J E Richards

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Citations

Jun 23, 1999·Trends in Cognitive Sciences·D A Leopold, N K Logothetis
Nov 7, 2015·Journal of Experimental Child Psychology·Tina MaltiMarieke de Bruine
Feb 26, 2005·Developmental Psychobiology·Kristin A BussRichard J Davidson
Aug 24, 2004·Developmental Science·Steven S RobertsonLeigh F Bacher
May 12, 2006·Child Development·Mary L CourageJohn E Richards
Aug 23, 2008·Child Development·Marie Evans SchmidtDaniel R Anderson
Nov 1, 2012·Infancy : the Official Journal of the International Society on Infant Studies·Brittany M Mallin, John E Richards
Mar 22, 2016·Developmental Psychobiology·S V WassK de Barbaro

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