Itsy Bitsy Spider…: Infants React with Increased Arousal to Spiders and Snakes
نویسندگان
چکیده
Attention biases have been reported for ancestral threats like spiders and snakes in infants, children, and adults. However, it is currently unclear whether these stimuli induce increased physiological arousal in infants. Here, 6-month-old infants were presented with pictures of spiders and flowers (Study 1, within-subjects), or snakes and fish (Study 1, within-subjects; Study 2, between-subjects). Infants' pupillary responses linked to activation of the noradrenergic system were measured. Infants reacted with increased pupillary dilation indicating arousal to spiders and snakes compared with flowers and fish. Results support the notion of an evolved preparedness for developing fear of these ancestral threats.
منابع مشابه
Itsy Bitsy Spider? It Depends…
1Department of Cognitive Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel, 2Numerical Cognition Laboratory, Department of Psychology, Brain and Mind Institute, The University of Western Ontario, London, ON, Canada, 3Department of Psychology, Columbia University, New York, NY, USA, 4Department of Psychology, Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, B...
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