Chapter 6

Freud’s Psychosexual Stages – Oral Stage (Birth to Age 2)

  • Infants derive satisfaction primarily through the mouth (e.g., sucking, biting).

  • Weaning should be balanced to avoid fixation.

  • Fixation Consequences: Can manifest in adulthood as oral behaviors like nail-biting, smoking, overeating, or excessive talking.

  • Stressed the mother-infant bond, emphasizing the symbiotic relationship.

  • Proper weaning fosters independence and secure attachment.

Erikson’s Psychosocial Theory – Trust vs. Mistrust (Birth to Age 2)

  • Built upon Freud’s ideas but emphasized social and emotional development beyond feeding.

  • Key to development: Responsive caregiving (talking, comforting, meeting needs).

  • Infants develop trust when caregivers are consistent and nurturing.

  • Neglect or inconsistent care may lead to mistrust and cynicism about the world.

Key Supporting Study: Harlow & Zimmerman (1959)

  • Method: Infant monkeys were given two surrogate mothers:

    • Wire Mother (provided food but no comfort).

    • Cloth Mother (provided comfort but no food).

  • Findings: Monkeys preferred the Cloth Mother, suggesting that attachment is based on comfort and security, not just food.

  • Implication: Supports Erikson’s view that social bonds are built through emotional security, not just physical needs.

Additional Research: Schaffer & Emerson (1964)

  • Studied infant attachment and maternal care.

  • Found that feeding practices correlated with infant adjustment.

  • Reinforced the idea that attachment is influenced by responsive and consistent caregiving, aligning with Erikson’s emphasis on trust development.

  • Highlighted the importance of emotional availability in caregiving, which fosters secure attachments.


Synchrony in Parent–Infant Relationships

  • Definition: Synchrony is like a conversation where caregivers and infants take turns initiating and responding.

  • Infant Signals: Babies communicate needs through crying, smiling, quieting, and snuggling.

  • Caregiver Responses: Caregivers reciprocate with attachment behaviors, strengthening the bond.

Father-Infant Bond

  • Fathers rely on synchrony, not immediate post-birth contact, to form attachments.

  • Early attachment behaviors in fathers are similar to those of mothers.

  • Over time, specialized parenting roles emerge:

    • Fathers tend to engage in physical play and roughhousing.

    • Mothers focus more on routine caregiving and social interactions.

  • Parenting roles are flexible—both parents can participate in physical play and caregiving regardless of family structure.

Biological Responses in Parenting

  • Hormonal influences:

    • Mothers: Oxytocin (bonding, nurturing).

    • Fathers: Vasopressin (protection, bonding).

  • Both parents exhibit caregiving-related hormonal responses influenced by interaction quality and quantity.

Cultural Considerations

  • Research primarily focuses on North American and European families, introducing potential bias.

  • In societies valuing gender equality, fathers are more involved in caregiving.

  • Studies on Latino immigrant families suggest traditional gender roles may evolve in new cultural settings.

  • A broader perspective is needed to understand father-infant relationships across diverse cultures.


Gradual Emergence of Attachment:

  • Baby’s attachment develops gradually, based on the ability to recognize parents.

  • Infants can recognize their mother’s voice before birth and her sight and smell within days after birth.

Four Phases of Attachment (Bowlby, 1969):

  • Phase 1: Non focused Orienting and Signaling (birth to 3 months):

    • Babies exhibit behaviors like crying, smiling, and making eye contact to draw attention and signal needs to everyone they encounter.

  • Phase 2: Focus on One or More Figures (3 to 6 months):

    • Babies direct their signals to fewer people, usually those they spend the most time with, and are less responsive to unfamiliar people.

  • Phase 3: Secure Base Behavior (6 to 24 months):

    • True attachment emerges. Babies show proximity-seeking behaviors, following and clinging to caregivers, especially when anxious or in need.

  • Phase 4: Internal Model (24 months and beyond):

    • The internal model influences later relationships with early caregivers and other significant relationships throughout life.


  1. Stranger and Separation Anxiety:

    • Infants show stranger anxiety by clinging to caregivers when strangers are present.

    • Separation anxiety is demonstrated by crying or protesting when separated from caregivers.

    • Both behaviors appear around 5 to 6 months, peak at 12 to 16 months, and then decline.

    • Stranger anxiety typically emerges first, followed by separation anxiety, which lasts longer.

  2. Cultural Observations:

    • These anxiety behaviors are observed in children from various cultures and in both home-reared and day care children in the U.S.

  3. Social Referencing:

    • Infants use caregivers’ emotional expressions as a guide in novel or threatening situations.

    • Babies look at caregivers’ faces to gauge their emotional reactions and respond accordingly.

    • Social referencing helps infants regulate their own emotions, using caregivers’ expressions to transition to a more pleasant state or escalate their feelings based on the caregiver’s response.


  1. Ainsworth’s Category System:

    • Developed in the late 1970s to describe variations in the quality of the first attachment relationship.

    • Distinguishes between secure attachment and two types of insecure attachment.

  2. Strange Situation Test:

    • A procedure to assess attachment by observing infants’ responses to the presence and absence of other people.

    • Consists of eight episodes involving the child with the mother, a stranger, alone, and during reunions.

  3. Attachment Classifications:

    • Secure Attachment:

      • Child separates easily from caregiver, explores readily, seeks contact when threatened, and is easily consoled.

      • Prefers mother over stranger and greets mother positively upon reunion.

    • Insecure/Avoidant Attachment:

      • Child avoids contact with mother, especially during reunions, and shows no preference for mother over stranger.

    • Insecure/Ambivalent Attachment:

      • Child shows little exploration, is wary of strangers, and is greatly upset when separated from mother.

      • Not reassured by mother’s return or efforts to comfort.


  1. Consistency of Attachment:

    • The security or insecurity of a child’s attachment remains consistent if the family environment is stable.

    • Major changes, like divorce or moving, can alter the security of attachment.

  2. Impact of Major Upheavals:

    • A study followed middle-class White children from age 1 to 21 and found that attachment classifications changed due to major upheavals (e.g., death of a parent, abuse, serious illness).

    • Domestic violence can also affect attachment stability, with securely attached infants at risk of becoming insecurely attached preschoolers if domestic violence increases.

  3. Internal Model of Attachment:

    • Bowlby suggested that attachment patterns are specific to each relationship in the first 2-3 years.

    • Preschoolers can be securely attached to one parent and insecurely attached to the other.

    • The quality of each relationship determines attachment security, which can change if the relationship changes.

    • By age 4 or 5, the internal model of attachment becomes more a property of the child.This model influences how children perceive and interact with others, affecting their social and emotional development throughout childhood and into adulthood.

  4. Three-Category System for ASD Severity:

    • Clinicians use a system to describe the severity of Autism Spectrum Disorder (ASD) in three levels.

  5. Level 3 ASD:

    • Children have very limited or nonexistent language skills.

    • Display stereotypic behaviors like hand-flapping and rocking.

    • Have a severely limited range of interests and often have intellectual disabilities.

    • Stereotypic behaviors, such as head-banging, can cause serious injuries.

  6. Level 2 ASD:

    • Capable of some verbal communication with mild cognitive impairment.

    • Difficulty understanding others’ perspectives and often repeat inappropriate words or phrases.

    • Limited capacity for normal conversations and social interactions.

  7. Level 1 ASD:

    • Have age-appropriate language and cognitive skills.

    • Diagnosed later in childhood due to unusual behaviors.

    • Intense focus on meaningless details and obsessive-compulsive behaviors.

    • Difficulty forming friendships by school age.

  8. Treatments:

    • Intensive social skills training and behavior modification can reduce ASD symptoms.

    • Most effective when implemented during the first 3 years of life.

    • Early intervention programs that focus on peer interaction can also enhance social functioning.



  1. Inborn and Environmental Factors:

    • The predisposition to form attachment relationships may be inborn.

    • Environmental factors, such as caregiver characteristics, also contribute to attachment.

  2. Emotional Responsiveness:

    • Emotional availability of caregivers is crucial for secure attachment.

    • Distressed parents may meet physical needs but struggle with emotional availability.

  3. Contingent Responsiveness:

    • Caregivers who respond appropriately to a child’s cues (e.g., smiling, talking, picking up) foster secure attachment.

    • Infants with responsive parents are more likely to be securely attached by 12 months.

  4. Complexity of Caregiver Responsiveness:

    • Low responsiveness is linked to insecure/resistant attachment, influenced by infant temperament.

    • Infants with negative emotionality are more likely to develop insecure/resistant attachment with low-responsive caregivers.



  1. Lack of Consensus on Temperament Dimensions:

    • Psychologists have not agreed on a basic set of temperament dimensions.

  2. Thomas and Chess’s Theory:

    • Proposed three temperament classifications for about 65% of infants:

      • Easy Children (40%): Positive approach to new events, predictable cycles, generally happy, and adjust easily to change.

      • Difficult Children (10%): Irregular cycles, emotional negativity, irritability, and resistance to change.

      • Slow-to-Warm-Up Children (15%): Few intense reactions, nonresponsive to unfamiliar people.

  3. Trait Perspective on Temperament:

    • Some researchers view temperament as a combination of various characteristics.

    • Example: High physical activity combined with emotional irritability vs. high activity with an easygoing nature.

  4. Ongoing Research:

    • Researchers are still defining key dimensions of temperament.

    • One widely used measure includes 15 dimensions.



  1. Temperament Dimensions:

    • Activity Level: Tendency to move often and vigorously.

    • Approach/Positive Emotionality/Sociability: Tendency to move toward new people, situations, or objects.

    • Surgency/Exuberance: High levels of intensity, activity, and sensation-seeking.

    • Inhibition/Anxiety: Tendency to respond with fear or withdraw from new people, situations, or objects.

    • Negative Emotionality/Irritability/Anger/Emotionality: Tendency to respond with anger, fussiness, or irritability; low threshold of frustration.

    • Effortful Control/Task Persistence: Ability to stay focused and manage attention and effort.

    • Distractibility: Tendency to lose focus during effortful tasks.

  2. Trait Approach:

    • Useful for examining associations between infant temperament and later personality traits.

    • High activity level in infants often leads to outgoing personalities in later childhood and adulthood.

    • Inhibited behavior in infants is linked to shyness later in life.

  1. Nature and Nurture in Temperament:

    • Both genetic and environmental factors contribute to individual differences in temperament.

    • Temperamental differences appear early in life, even during the prenatal period.

  2. Heredity:

    • Studies of twins show that identical twins are more alike in temperament than fraternal twins.

    • Classic twin studies indicate a strong genetic effect on temperament.

  3. Long-Term Stability:

    • Longitudinal studies suggest that temperamental differences are stable from preschool years into adulthood.

    • Consistency is particularly noted in children with difficult temperaments and in levels of inhibition.

Frontal Lobe Asymmetry - Research indicates that frontal lobe asymmetry may play a role in emotional regulation and temperament, with greater left-sided activation often associated with positive affect and approach behaviors, while right-sided activation is linked to withdrawal and negative emotions.

Dopamine -

Serotonin -



  1. Temperament-Environment Interactions:

    • These interactions tend to strengthen temperamental traits.

    • People choose environments that reflect their temperaments, a process called niche picking.

    • Example: Sociable children seek contact with others, while less active children prefer solitary activities.

  2. Influence of Parents and Others:

    • Parents and others can increase or decrease the effects of an infant’s inborn temperament.

    • A study found that controlling parents led to more behavioral inhibition (shyness) in children over time.

    • Accepting a child’s temperament may help them overcome shyness more than trying to change it.

  3. Variability in Temperamental Dimensions:

    • Interactions outside the family influence some temperamental dimensions more than others.

    • Surgency is more influenced by interactions than negative affectivity or effortful control.

    • Some dimensions of temperament may be more influenced by heredity than environment.



  1. Development of Self:

    • During the same period when a baby is forming an internal model of attachment and expressing temperament, they are also developing an internal model of self.

    • Freud and Piaget emphasized the importance of separateness from the mother and understanding object permanence for self-development.

  2. Subjective Self:

    • The child’s first task is to understand that they are separate from others and that this self endures over time and space.

    • This understanding begins in the first 2 to 3 months through interactions with objects and people.

    • Social smiles, directed at others to elicit a response, appear around this time.

  3. Emergence of Subjective Self:

    • By 8-12 months, with a complete understanding of object permanence, the subjective self is fully emerged.

    • The child realizes that they exist separately and have some permanence, similar to understanding that parents continue to exist when out of sight.


  1. Objective Self:

    • The toddler’s task is to understand that they are an object in the world with properties like gender, size, and personality traits.

    • This self-awareness is called the objective self or categorical self.

  2. Mirror Self-Recognition Test:

    • Used to determine when a child develops initial self-awareness.

    • Involves placing a baby in front of a mirror and observing their reactions.

    • A mark is placed on the baby’s nose to see if they recognize themselves by touching the mark on their own nose rather than the mirror image.


  1. Emotional Self:

    • Provides infants the ability to decipher emotional cues and relate others’ feelings to their own.

    • A well-developed emotional self at age 2 enables more meaningful interactions.

  2. Development of Emotional Self:

    • Begins with identifying changes in emotion in voices and faces.

    • At birth, neonates can distinguish fearful, happy, and angry voices, attending longer to happy voices.

  3. Facial Expression Recognition:

    • Infants notice changes in facial expressions at 2 to 3 months.

    • Detecting fearful faces is crucial for survival, with 3-month-olds better at detecting fear than happiness.

    • By 5 to 7 months, infants pay more attention to fearful expressions, similar to adults.

  4. Using Emotional Cues:

    • Infants use vocal and facial expressions to understand others’ emotional states.

    • At 9 months, infants match facial expressions with the emotional tone of voices they hear.


  1. Complexity of Nonparental and Parental Care:

    • Both types of care involve complex interactions among numerous variables.

    • Effects cannot be studied independently.

  2. Variety of Nonparental Care Arrangements:

    • Includes care by grandparents, day-care centers, and other settings.

    • Infants enter care at different ages and for varying lengths of time.

    • Some have consistent caregivers, while others frequently change settings.

  3. Parental Priorities in Child-Care Choices:

    • Parents prioritize cost, location, and availability over quality of care.

  4. Statistics on Care Arrangements:

    • A study found that 81% of young children in Maryland moved from one care setting to another at least once over 15 months.



  1. Physical Development:

    • Nonparental care is associated with a higher likelihood of overweight in infants and young children.

    • Critical period for developing lifelong obesity is between ages 4 and 6.

    • Importance of determining causes to implement changes in practices and educate parents on nutrition and exercise.

  2. Cognitive Development:

    • High-quality day care can benefit children’s cognitive development, especially for children from poor families.

    • Some studies show significant gains in school performance after attending enriched day care.

    • However, research findings are inconsistent, with some studies showing no consistent cognitive effects.


Physical Development

  • Nonparental Care and Overweight Risk:

    • Associated with a higher likelihood of overweight in infants and young children.

    • Potential influences include differing meal practices and activity levels.

  • Critical Period for Lifelong Obesity:

    • Ages 4 to 6 are crucial for developing patterns that can lead to lifelong obesity.

    • Habits related to food intake and physical activity form during this period.

  • Importance of Understanding Causes:

    • Identifying underlying causes of weight gain in children is vital.

    • Knowledge can inform strategies, education for parents, and revisions to care practices.

Cognitive Development

  • Benefits of High-Quality Day Care:

    • Can significantly benefit cognitive development, especially in children from poor families.

    • Access to enriched learning environments enhances growth opportunities.

  • School Performance Gains:

    • Attending high-quality day care may lead to improved academic performance.

    • Early interventions can have lasting positive effects on education.

  • Inconsistent Research Findings:

    • Research on cognitive effects from day care can be inconsistent.

    • Some studies show minimal to no impact; outcomes may vary based on family dynamics, care quality, and socio-economic factors.