A developmental phenomenon characterized by distress exhibited by infants when confronted with unfamiliar individuals. This anxiety typically emerges around 8 months of age and can persist until approximately 18 months. The manifestation often includes crying, clinging to familiar caregivers, and attempts to move away from the perceived threat. A child, generally sociable, may suddenly become withdrawn and tearful when approached by a person they do not recognize.
Understanding this specific anxiety is crucial in developmental psychology as it indicates a healthy attachment to primary caregivers and the ability to discriminate between familiar and unfamiliar faces. Its presence signifies cognitive and emotional growth. Recognizing this normal stage allows caregivers to provide appropriate support and comfort, fostering a secure environment for the child’s continued development. Historically, research into attachment theory has highlighted the significance of this reaction as an indicator of secure base behavior.
