Human Developmental Psych Lecture 4 Part 1

Population Growth and Development

• Human Population Distribution

  • The human population can be divided into developed and developing countries.

  • Terms previously included "industrialized" for developed countries and undefined terms for developing nations.

  • This classification highlights socioeconomic disparities.

• Social Class Distinctions

  • Societal structures often viewed through the lens of social class: rich, middle class, poor.

  • Psychological and developmental studies reflect differences in behavior by social class.

• Evolutionary Psychology

  • Evolution plays a critical role in understanding human behavior and development.

  • Key concept: behavior and cognitive processes are adaptations to the environment.

Darwin's Theory of Evolution

• Observations from Darwin

  • Darwin’s research, particularly in the Galapagos Islands, demonstrated that species vary based on environmental factors.

  • Example: Birds displayed different wing spans and beak shapes depending on habitat and functional needs.

• Misinterpretations of Darwinism

  • Darwin's ideas were misapplied by followers to justify societal structures like imperialism with the phrase "survival of the fittest" coined by Herbert Spencer, not Darwin himself.

  • The Imperialist ideology suggested that some societies were more 'fit' than others, ignoring environmental adaptability.

• Environmental Impact on Species

  • Example: The decline of light-colored moths during the Industrial Revolution due to pollution and increased visibility against smudged trees led to evolutionary change as the moths adapted their color for camouflage.

  • Key takeaway: "Fitness" is context-specific to environmental conditions, challenging the notion of a static definition of being 'fit.'

Cultural Influences on Development

• Complications of Culture

  • Culture plays a pivotal role in human development and interacts with evolutionary principles.

  • The text emphasizes that understanding development requires consideration of both evolutionary biology and cultural context.

Theories of Development

• Historical Perspectives on Development

  • Ancient theories of development exist and offer various insights:

    • Hindu Approach: Life stages are often marked by spiritual learning.

    • Greek Philosophical Thoughts: Focused on physical growth and competency.

    • Talmudic Approach: Highlights the importance of scripture reading in child development.

  • Observations of development showcased that different cultures articulate development in varied terms.

• Modern Developmental Psychology

  • The scientific approach puts emphasis on systematic observation, distinguishing it from anecdotal observations common in familial or cultural traditions.

  • Observations should aim for objectivity, providing a clearer understanding of developmental processes beyond subjective experiences.

• Conclusion

  • The text's objective is to marry scientific observations with developmental psychology, hinting at the complexity arising from the interaction of evolution, society, and culture.

  • It underscores the significance of utilizing rigorous scientific methods in understanding human development, moving beyond mere familial or anecdotal knowledge.