Volume 10 Num. 3 - October 2010
Two Temperamental Characteristics, Approach and Inhibition/Fear, and Saccadic Responses in Infancy
Volume 10 Num. 3 - October 2010 - Pages 349-362
Atsuko Nakagawa , Masune Sukigara
To examine early development of two aspects of individual differences in temperament, we assessed the saccadic eye movements of infants. As for the approach tendency (surgency), we examined the general speed of saccades. To study behavioral inhibition or fear, we examined the speed at which infants reorient their attention to a previously attended location (inhibition of return: IOR). Temperament was assessed by the Infant Behavior Questionnaire Revised (IBQ-R). Innate and learned fear scores were developed from IBQ-R fear scores. While a quick approach tendency was positively related to the extent of surgency across ages, no relationship was observed between fear or behavioral inhibition and IOR. However, the response numbers indicated some different effect of fearfulness in younger and older infants.
Temperament, saccade, surgency, fear, inhibition of return.
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