International Journal of Psychology and Psychological Therapy

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.

Key words:

Temperament, saccade, surgency, fear, inhibition of return.

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