Socialization of Infants

• From birth, infants are social creatures, forming strong attachments to caregivers.

• Developmental milestones:

  • Show preference for familiar faces and voices.

  • Engage in cooing and gurgling in response to caregiver attention.

• By 4.5 months, infants can distinguish between familiar and unfamiliar languages (Fecher & Johnson, 2019).

• Around 8 months, following the emergence of object permanence and mobility:

  • Infants develop separation anxiety when apart from caregivers.

  • Stranger anxiety occurs when in the presence of strangers, leading to behaviors such as crying and reaching for familiar caregivers.

  • Infants exhibit schemas for familiar faces, often resisting being handed to unfamiliar people (Quinn et al., 2019).

• Key Principle: The interrelated development of brain function, mind, and social-emotional behaviors.

Origins of Attachment

• One-year-olds show a strong attachment to caregivers, especially in fearful situations or expected separations.

• Reunion behaviors:

  • Infants display affectionate gestures like smiles and hugs towards caregivers.

• The bond formed is vital for survival, keeping infants close to caregivers.

• Traditional theories suggested attachment was based on nourishment needs, but findings from the Harlow studies revealed otherwise.

Body Contact

• 1950s research by Harry and Margaret Harlow involving infant monkeys revealed insights into attachment:

  • Monkeys raised in isolation exhibited distress when their soft blankets were washed.

  • Harlow's experiments used two artificial mothers to demonstrate attachment:

  • A wire mother with feeding bottle vs. a soft, cloth-covered mother without food.

  • Monkeys overwhelmingly preferred the cloth mother, utilizing her as a secure base while exploring their environment.

  • Findings highlighted that attachment derives from comfort and contact, not merely nourishment (Harlow et al., 1971).

Emotional Communication

• Similar to monkeys, human infants bond with caregivers who are warm and responsive.

• Important forms of emotional communication:

  • Touch acts as a soothing mechanism (snuggles) or can be arousing (tickles) (Hertenstein et al., 2006).

  • Across cultures, ideal caregiving is associated with affectionate touch (Mesman et al., 2015).

• Neurological impacts: Parental affection positively influences brain development and cognitive abilities (Davis et al., 2017).

Secure Base Concept

• A significant aspect of attachment is the caregiver providing a secure base for exploration and a safe haven when distressed. This secure base shifts as children mature, from parents to peers and partners (Cassidy & Shaver, 1999; Schmidt et al., 2019).

• Emotional reassurance from caregivers fosters social connectedness (Crowell & Waters, 1994).

Familiarity and Attachment

• Contact and familiarity are crucial for forming attachments:

  • Many animals form attachments based on familiarity during critical development periods (Bornstein, 1989).

  • Humans have a less defined sensitive period for forming attachments, which is based on previous exposures.

  • Children show a preference for familiar books, movies, and family traditions, as familiarity signals safety.

Critical Period and Imprinting

• Attachment behaviors in animals, like imprinting in goslings, occur shortly after hatching when the first moving object is observed (Konrad Lorenz, 1937).

  • Unlike ducklings, human attachment does not involve imprinting but is influenced by repeated familiarity with individuals or surroundings.

Attachment Differences: Temperament and Parenting

• Research Observation: Mary Ainsworth's Strange Situation experiment revealed attachment styles:

  • About 60% of infants display secure attachment, indicating they feel comfortable exploring in their mother's presence.

  • Insecure attachment forms:

  • Anxious attachment signifies anxiety or avoidance of trusting relationships.

  • Disorganized attachment demonstrates inconsistent behavior during separations and reunions.

• Findings depict that sensitive, responsive caregiving results in secure attachment, whereas insensitive care leads to insecure attachment (De Wolff & van IJzendoorn, 1997).

• The unnaturalistic conditions of Harlow's experiments shed light on the importance of companionship for development.

Effects of Temperament

• Temperament refers to inherent emotional reactivity and intensity, showing significant hereditary influence (Picardi et al., 2011; Raby et al., 2012).

• Babies show a range of temperamental differences upon birth:

  • Difficult babies: Irritable, intense, unpredictable.

  • Easy babies: Cheerful, relaxed, predictable.

• Research indicates:

  • Identical twins often share more similar temperaments than fraternal twins (Fraley & Tancredy, 2012; Kandler et al., 2013).

• Anxious infants exhibit physiological differences.

• The persistence is notable from infancy to young adulthood, influencing outcomes such as school performance and social interactions (Caspi et al., 2016).

Randomized Studies

• To differentiate between nature and nurture influences, controlled studies have been conducted:

  • Dymphna van den Boom (1994) randomly assigned temperamentally difficult infants to receive special parental training. The resultant attachment security showed significant differences (68% vs. 28% securely attached) based on parenting interventions (Bakermans-Kranenburg et al., 2003; Van Zeijl et al., 2006).

• Positive parenting interventions demonstrate a significant impact on child attachment security, especially in challenging temperament scenarios (Slagt et al., 2016).

Dual Parenting Positives and Effects on Children

• Increased father involvement has led to positive outcomes, with active dads engaging more in caregiving (Livingston & Parker, 2011).

• Couples sharing housework also report better relationship satisfaction and lower divorce rates (Wilcox & Marquardt, 2011).

• Children raised by both parents show better life outcomes (Taylor, 2014) regardless of parents' gender or sexual orientation (American Academy of Pediatrics, 2013).

• Studies highlight that engaged fathers positively impact children's risk behaviors and educational achievements, especially in stressful environments (Flouri & Buchanan, 2004; Luningham et al., 2020; DelPriore et al., 2017).

Separation Anxiety

• The anxiety related to parental separation peaks around 13 months, gradually decreasing while maintaining a need for love and companionship throughout life (Figure 3.6-4).

• Children show a consistent response regardless of living situation, indicating a deep-rooted need for social connection.

Attachment Styles and Adult Relationships

• Erik Erikson theorized that securely attached children see the world as predictable, maintaining trust based on early parenting experiences.

• Early attachments are foundational for future adult relationships, with secure parental relationships correlating to secure friendships (Birnbaum et al., 2006; Fraley et al., 2020).

• Effects of Attachment:

  • Anxious attachment leads to overreliance on partners; avoidant attachment diminishes commitment in relationships, often increasing conflict (DeWall et al., 2011; Overall et al., 2015).

• The cycle of attachment styles can influence parenting styles; those with anxious or avoidant tendencies might replicate these patterns across generations (Ein-Dor et al., 2010).