Infancy and First Year

Introduction to Infant Development

Course: PSY301 Child DevelopmentCourse: PSY364 Lifespan DevelopmentInstructor: Dr. Nicole McDonaldInstitution: GV

Overview of Topics

  • Infancy Overview: This includes defining the period of infancy, which is typically from birth to 24 months, and its significance in human development.

  • Theorists on Infancy: An exploration of foundational theories that shape our understanding of infants, including Erikson, Freud, and Piaget.

  • Key Developmental Mantra: Discussing the principle that while developmental milestones often occur at certain ages, individual growth is influenced by numerous factors beyond just age.

  • Infant Communication: Understanding how infants communicate their needs and feelings through cries and other non-verbal cues.

  • Infant Reflexes and Motor Development: An overview of innate reflexes that infants are born with, the progression of motor skills, and their importance in development.

  • Parenting Models, Feeding, and Sleeping: Examining various parenting styles, feeding practices, and sleep requirements for optimal infant health.

  • Infant Brain and Cognitive Development: A focus on how an infant’s brain develops and the cognitive advances that occur during the first two years.

  • Early Attachment: The formation of bonds between infants and caregivers and its long-term effects on relational skills.

  • Self-Concept Development: Exploring how infants begin to understand themselves as separate individuals and the implications for their emotional health.

  • Summary - Key Points: Recapping essential takeaways about infant development.

Trust vs. Mistrust (Erikson)

  • Sigmund Freud's psychosocial theory posits that infants learn to trust their caregivers through consistent responses to their basic needs for nourishment, shelter, and safety.

  • If these needs are met reliably, infants develop a sense of trust, while unmet needs may lead to feelings of mistrust, significantly affecting future relationships and attachments.

  • Virtue associated with this stage: Hope; when trust is established, it fosters optimism and confidence in their environment.

Freud’s Oral Stage

  • Freud's psychosexual theory indicates that during the oral stage (birth to 18 months), infants achieve pleasure primarily through oral stimulation.

  • Key behaviors include sucking, biting, and oral exploration, which serve as critical stages of development.

  • Developmental fixation at this stage can manifest as issues in adulthood, such as addictions to food, alcohol, or drugs, highlighting the importance of proper oral care during this stage.

Theorists and Infancy Models

  • Albert Bandura: Emphasizes the role of social learning through modeling and observational learning, suggesting that infants learn behaviors by imitating adults.

  • Operant Conditioning: Involves behaviors being shaped through reinforcement, with rewards or attention reinforcing positive offspring actions.

  • Classical Conditioning: Explores how infants develop learned associations, leading to emotional responses.

  • Bronfenbrenner's Ecological Systems Theory: Highlights that development is influenced by different contextual environments, including family, peers, and culture.

  • Vygotsky's Social Development Theory: Stresses the importance of cultural context and social interactions in cognitive growth, emphasizing scaffolding provided by caregivers.

  • Lerner & Lerner: Discuss the match between the infant's temperament and their environment, which is crucial for healthy development.

Key Developmental Mantra

  • Development is Age-Related but NOT Age-Dependent: This principle emphasizes the idea that while certain milestones occur around specific ages, their timing can vary widely due to various factors, including genetics and environment.

Infant Communication

  • Crying: The primary mode of communication for infants to express needs before they can articulate them with words.

  • Types of Cries: Different types of cries can indicate hunger, discomfort, tiredness, and overstimulation, with research showing these patterns are fairly consistent across cultures, suggesting an innate understanding of needs.

Language Development Stages

  • Communication Development: Progresses through distinct stages, from cries to the emergence of language.

  • Cooing: Begins around 2 months, a precursor to later speech.

  • Babbling (4-5 months): Consists of repetitive consonant-vowel combinations, laying the groundwork for later vocabulary.

  • First Words: Typically emerge between 11-13 months, often consisting of simple nouns that relate to the infant's immediate environment, leading to further language acquisition.

  • Infant Sign Language: This form of communication can aid in bridging gaps between receptive and expressive language skills, allowing infants to express needs and feelings before they can verbally articulate them.

Infant Reflexes

  • Importance of Reflexes: Reflexes such as rooting and sucking are critical for survival, indicating neurological health and the body's readiness to engage with the environment.

  • Key Reflexes Include:

    • Rooting

    • Sucking

    • Grasping

    • Stepping

    • Crawling

    • Babinski

    • Startle/Moro

Primitive Reflexes

  • These reflexes serve crucial survival purposes and are integrated over time.

  • Retained reflexes beyond their normal age limits can lead to developmental concerns such as anxiety or poor motor skills.

Key Motor Milestones

  • Infants' early movements transition from reflexive actions to organized and intentional actions, marking significant progress in physical development.

  • Notable milestones are:

    • 3-6 months: Rolling over

    • 6-8 months: Sitting up without assistance

    • 6-10 months: Crawling

    • 10-14 months: Walking unassisted, signaling readiness for increased mobility.

Infant Brain Development

  • The infant brain undergoes remarkable growth, doubling in size from birth to the first birthday, highlighting critical periods for cognitive and perceptual development.

  • Neuroplasticity: The high plasticity of an infant's brain allows it to form new connections and adapt to experiences, which shapes individual development.

Infant Cognitive Development

  • Piaget's Sensorimotor Stage: Focuses on sensory experiences and motor activities as infants learn about their surroundings.

  • Important aspects:

    • Primary Circular Reactions (1-4 months): Discovering and controlling own actions.

    • Secondary Circular Reactions (4-8 months): Engaging with the environment through actions like shaking a rattle.

    • Tertiary Circular Reactions (12-18 months): Trying out new activities to explore cause-and-effect.

Infant Cognitive Skills

  • Habituation/Dishabituation: Techniques used to assess infants' attention span and intelligence levels through their reaction to new stimuli.

  • Object Permanence: A significant cognitive development where infants learn that objects continue to exist even when out of sight, often through playful activities such as peek-a-boo.

Models of Infant Parenting

  • Baby-Training: A more structured, parent-led approach focusing on conditioning infant behavior to fit family routines, which may aid in establishing clear sleep and feeding schedules.

  • Attachment Parenting: An infant-led, responsive approach aimed at fostering trust and emotional security by being attuned to an infant's needs.

Infant Feeding

  • Breastfeeding: The World Health Organization recommends exclusive breastfeeding for the first six months for optimal nutrition and bonding, capitalizing on the nutritional, immunological, and emotional benefits.

Infant Feeding Practices

  • Bottle-feeding: Offers flexibility, allowing others to participate in feeding and enabling mothers to manage work and other duties more easily.

  • Self-Feeding: Encouraging infants to feed themselves promotes independence, fine motor skill development, and lays the groundwork for future eating habits.

Feeding Chart Overview

  • Newborns typically need about 2-3 oz. per feeding, with gradually increasing amounts as they grow, leading to the introduction of solid foods at around 6 months.

Infant Sleep Needs

  • Newborns can sleep up to 20 hours a day, although individual needs may vary. As they develop, sleep patterns improve, and longer nighttime sleep becomes typical.

  • Safe sleep practices are crucial to reduce the risk of Sudden Infant Death Syndrome (SIDS) and ensure a healthy sleep environment for the infant.

Early Infant Attachment

  • The quality of early attachment impacts emotional well-being and future relationships. Caregivers' responsiveness contributes to developing a secure base for exploration and learning.

  • Social Referencing: Infants observe adult reactions to gauge their emotional responses, aiding in social understanding and emotional development.

Attachment Styles

  • Secure: Represents a well-nurtured relationship, fostering trust and comfort.

  • Anxious-Preoccupied: Results from inconsistent nurturing, leading to relationships characterized by dependency and a high need for reassurance.

  • Dismissive-Avoidant: Caused by emotional distance in caregivers, resulting in difficulties in forming close bonds.

  • Fearful-Avoidant: A combination of seeking closeness and fear of rejection, leading to ambivalence in relationships.

Development of Self-Concept

  • By 4-5 months, infants begin to understand they are separate beings from their caregivers, with mirror recognition typically emerging by 18-20 months, establishing the foundation for self-awareness and identity development crucial for emotional health.

Summary of Infant’s First Year

  • The first year is marked by establishing trust, sensory development, communication skills, and cognitive schemata, each contributing to a holistic framework for healthy infant growth and development.