What This Document Is
These are lecture notes from PSY 231: Developmental Psychology at Miami University, specifically covering cognitive development during infancy – the period from birth through age two. The notes synthesize key theories and observations regarding how infants learn about and interact with the world around them. It focuses on foundational work from Piaget and Vygotsky, alongside explorations of language acquisition.
Why This Document Matters
These notes are essential for students enrolled in Developmental Psychology. They provide a concentrated overview of core concepts that will likely be featured on exams and form the basis for further discussion. Understanding infant cognitive development is crucial for anyone pursuing careers in psychology, education, social work, or related fields. This material sets the stage for understanding later cognitive and social-emotional development.
Common Limitations or Challenges
These notes are a *summary* of lecture material and do not replace the textbook or assigned readings. They are designed to aid comprehension and recall, not to provide a complete, self-contained understanding of the topic. The notes also do not include practice questions or in-depth case studies.
What This Document Provides
This document includes:
* An overview of Piaget’s theory of cognitive development, including schemas, assimilation, accommodation, and the sensorimotor stage.
* An introduction to Vygotsky’s Zone of Proximal Development and its implications for learning.
* A discussion of different theories of language development – behaviorist, nativist, and interactionist perspectives.
* Key terminology related to language acquisition, such as phonemes, semantics, syntax, and pragmatics.
* Information on early language milestones, including cooing, babbling, and the vocabulary explosion.
* Common errors in language development, like underextension and overextension.
This preview *does not* include detailed examples of experiments, comprehensive definitions of all terms, or a full exploration of every nuance within each theory. It is a roadmap to the core ideas presented in the lecture.
