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Development of Cardiac and Behavioral Responses to a Three-dimensional Toy Stimulation in One- to Six-Month- Old Infants.
Peer reviewed Peer reviewed
Pomerleau, Andree; Malcuit, Gerard – Child Development, 1980
Descriptors: Age Differences, Heart Rate, Infant Behavior, Perceptual Motor Coordination
Neonatal Stress Reactivity: Predictions to Later Emotional Temperament.
Peer reviewed Peer reviewed
Gunnar, Megan R.; And Others – Child Development, 1995
Baseline and heelstick measures of behavioral state, heart period, vagal tone, and salivary cortisol were obtained from 50 full-term newborns. Mothers completed Rothbart's Infant Behavior Questionnaire when the infants reached six months of age. Greater reactivity to the heelstick was associated with lower scores on the…
Descriptors: Age Differences, Heart Rate, Infant Behavior, Infants
Infant Reactivity: Physiological Correlates of Newborn and 5-Month Temperament.
Peer reviewed Peer reviewed
Stifter, Cynthia A.; Fox, Nathan A. – Developmental Psychology, 1990
Longitudinal data indicated a significant relation between five-month vagal tone and negative reactivity elicited in the laboratory and maternal ratings of activity level and smiling behavior. Newborn vagal tone predicted maternal ratings of frustration and fear. Moderate stability was found for infant reactivity. (RH)
Descriptors: Age Differences, Heart Rate, Infant Behavior, Infants
Cardiac Deceleration in Newborns: Habituation, Dishabituation, and Offset Responses
Peer reviewed Peer reviewed
Adkinson, Cheryl D.; Berg, W. Keith – Journal of Experimental Child Psychology, 1976
A total of 20 neonates were presented with mild intensity blue or blue-green light during presentation of habituation and dishabituation stimuli. Orienting and defensive responses were measured by monitoring heart rate deceleration. (GO)
Descriptors: Age Differences, Color, Heart Rate, Infant Behavior
Cardiac and Behavioral Responsivity to Tactile Stimulation in Premature and Full-Term Infants
Peer reviewed Peer reviewed
Rose, Susan A.; And Others – Developmental Psychology, 1976
In this study, an attempt was made to determine whether psychophysiological differences existed between 20 prematurely born and 20 full-term infants in their responsiveness to tactile stimulation and in their ability to discriminate among different intensities of such stimulation. (Author/SB)
Descriptors: Age Differences, Heart Rate, Infant Behavior, Infants
Heart Rate and Behavioral Measures of Attention in Six-, Nine-, and Twelve-Month-Old Infants during Object Exploration.
Peer reviewed Peer reviewed
Lansink, Jeffrey M.; Richards, John E. – Child Development, 1997
Examined the effect of heart rate and behavioral measures of attention on infants' distractibility. Found longer distraction latencies during attentional engagement as defined by heart rate changes or behavior than for inattentive periods. Infants had longest distraction latencies when heart rate and behavior measures both indicated engagement.…
Descriptors: Age Differences, Attention, Attention Span, Cognitive Processes
Conditions of Continuity and Discontinuity in Infant Negative Emotionality: Newborn to Five Months.
Peer reviewed Peer reviewed
Fish, Margaret; And Others – Child Development, 1991
Compared infants who had evidenced similar levels of crying as neonates but differed at five months of age. For initially high-crying infants, mothers' personality and marital quality, and infant variables discriminated stable from changing infants. Mother sensitivity and infant responsiveness at five months were related to continuity of infants'…
Descriptors: Age Differences, Crying, Heart Rate, Infant Behavior
Extended Visual Fixation in the Early Preschool Years: Look Duration, Heart Rate Changes, and Attentional Inertia.
Peer reviewed Peer reviewed
Richards, John E.; Cronise, Kim – Child Development, 2000
Examined visual fixation in infants 6 months to 2 years old for fit with theory of attentional inertia. Found that fixations had lognormal distribution, heart rate decreased during a look, and heart rate returned to prestimulus levels immediately before look offset. Older children showed different looking patterns to two types of stimuli; younger…
Descriptors: Age Differences, Attention, Attention Control, Attention Span