The compulsion to repeat in action: a developmental perspective

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Introduction to Developmental Psychology01:27

Introduction to Developmental Psychology

Developmental psychology explores the changes and continuities in human abilities throughout life, encompassing physical, cognitive, linguistic, and social dimensions. Human development is not restricted to growth, but includes aspects of decline, particularly in physical abilities as individuals age. Developmental psychologists seek to understand how people change as they age and how their mental and social skills evolve.Developmental MilestonesA key concept in developmental psychology is...
Principles of Development01:31

Principles of Development

Physical development during the prenatal period and early childhood follows two major directional principles: cephalocaudal and proximodistal development. These general patterns happen simultaneously and help explain changes in body proportions and the gradual development of motor skills.Cephalocaudal DevelopmentThe cephalocaudal principle describes development from the head downward toward the lower body. During prenatal development, the head and brain structures develop rapidly before many...
Behaviorist Approach of Cognitive Development01:18

Behaviorist Approach of Cognitive Development

Learning approaches explain cognitive development through observable learning processes and the ways experiences shape behavior. During infancy, learning can happen through classical conditioning, operant conditioning, and modeling. These processes allow infants to form associations, respond to consequences, and learn by observing others.Classical and Operant ConditioningClassical conditioning happens when an infant associates a previously neutral stimulus with another stimulus that naturally...
Language Development I: Behaviorist Perspective01:15

Language Development I: Behaviorist Perspective

Skinner’s behaviorist perspective explains language development through experience and learned associations. Children learn language through operant conditioning, in which behaviors followed by positive consequences become more likely to happen again. Caregiver responses gradually shape infants’ vocalizations.Reinforcement and Speech DevelopmentInfants first produce random babbling without intending specific meanings. When a sound resembles a word or adult speech, caregivers may respond with...
Principles of the Life-Span Developmental Approach: Part 101:26

Principles of the Life-Span Developmental Approach: Part 1

Paul B. Baltes and colleagues described several key principles of development across the lifespan. The first four emphasize that development is continuous and complex. It is shaped by experience, interacting influences, changing abilities, and the relationship between biology and culture. Together, these principles show why development is more complex than a simple sequence of age-related changes.Development is LifelongDevelopment begins early and continues throughout life, with experiences at...
Principles of the Life-Span Developmental Approach: Part 201:16

Principles of the Life-Span Developmental Approach: Part 2

Paul B. Baltes and colleagues described several key principles of lifespan development to explain how individuals change from childhood through late adulthood. These principles focus on the allocation of personal resources, the capacity for change, and the influence of historical and cultural environments. They show that development can change but is also limited by individual and environmental conditions.Development Involves Changing Resource AllocationsAcross the lifespan, individuals...