This paper considers first the concepts of temperament and emotion and then describes some of the genetic and neurochemical correlates of varied temperamental biases and their contribution to emotions. This discussion is followed by a detailed description of the infant temperamental biases called high- and low-reactive to unfamiliarity and their…

The balance between the preservation of early cognitive functions and serious transformations on these functions shifts across time. Piaget's writings, which favored transformations, are being replaced by writings that emphasize continuities between select cognitive functions of infants and older children. The claim that young infants possess…

Behavioural inhibition in the second year of life is a hypothesized predictor for shyness, social anxiety and depression in later childhood, adolescence and even adulthood. To search for the earliest indicators of this fundamental temperamental trait, this study examined whether behavioural characteristics in early infancy can predict behavioural…

Notes that 4-month olds who show a low threshold to become distressed and motorically aroused to unfamiliar stimuli are more likely than others to become fearful and subdued during early childhood, while infants who show a high arousal threshold are more likely to become bold and sociable. Considers implications for psychopathology and relation…

Evaluated brainstem auditory evoked responses (BAERs) on 10- to 12-year-olds who had been classified as high or low reactive to unfamiliar stimuli at 4 months of age. Found that children previously classified as high reactive at 4 months had larger wave V components than did low reactive children, possibly suggesting greater excitability in…

Groups of 7 1/2-month-old infants heard 1 of 8 episodes consisting of no, slight, moderate, or large discrepancy between a habituated standard and a transformed auditory stimulus. Patterns of cardiac deceleration supported the hypothesis that attentiveness is an inverted-U function of the degree of discrepancy between stimulus event and schema.…

Four-month-old infants from Boston, Dublin, and Beijing were administered the same battery of visual, auditory, and olfactory stimuli. The Chinese infants were significantly less active, irritable, and vocal than the Boston and Dublin samples, with American infants showing the highest level of reactivity. (Author)

This "Monograph" reports theoretically relevant behavioral, biological, and self-report assessments of a sample of 14-17-year-olds who had been classified into one of four temperamental groups at 4 months of age. The infant temperamental categories were based on observed behavior to a battery of unfamiliar stimuli. The infants classified as high…

Reviews recent empirical findings toward three cognitive developmental perspectives: the fears of infancy, the discontinuous quality of stages in cognitive functioning, and the capacity for resilience in cognitive development. (DEP)

Paper presented at the Merrill-Palmer Institute on Research and Training of Infant Development (Detroit, Mich., Feb. 15-17, 1968).

The development of two temperamental characteristics--the tendency to approach (uninhibited) and the tendency to avoid (inhibited) unfamiliar events--may be partially controlled by genetic predisposition. Discusses the results of a study indicating that the level of motor responses and crying in response to unfamiliar stimuli in four month olds…

Results of this study of 72 4-month-old infants suggest caution in using an overt demonstration of habituation as a necessary index of perceptual learning. (Author/MG)

Identifies and discusses a change in the theoretical bases of contemporary psychologists' views of infant development: the replacement of the constructs of energy, drive, and motive with cognitive constructs. (CM)

A follow-up investigation of 68 children 10 years of age who had been assessed originally at ages 4, 8, 13, and 27 months, did not reveal strong relations between infant variables (such as attentiveness, vocal excitability, irritability, or activity) and reflection-impulsivity, intelligence quotient, or reading ability at age 10. (JMB)