Altrical Species
Species whose have undeveloped features
Completely dependent
Precocial Species
Species who mature on their own and are independent
Humans: Altrial vs Precocial?
Secondarily Altrical
-Mainly because of the large heads and the females small pelvic size
Long Childhood- Adaptation to a cognitively demanding lifestyle
Piaget
Children act as scientists: observe effects of manipulation of objects and formulate theories to explain manipulation
3 Mechanisms of Developmental Change
Development Stages
0-2 –> Experience the world through 5 senses- object performance, stranger anxiety
2-6–> Represent thing with words and images, but lack logical analyses- egocentrism, Make pretend
Egocentrism
Inability to separate between self and other
Formal Operation
Ability to deal with things in a more abstract manner without seeing concrete objects
Forms at 11 years old
Concrete Operation
Can only apply logic to physicals things
Critiques to Piaget Theory
Domain Specificity
Domains and Core Principles
Intuitive Physics
- World contains objects which obey certain laws
Intuitive Psychology
- Other people have minds with beliefs and desires
Intuitive Biology
-Living things have an internal essence which determines their form and behavior
Intuitive Design
-Tools and artifacts have a function
Infant Study
Baby Skills
Cohesion- Parts of objects move together
Continuity- Object follows spatiotemporal trajectories (object doesn’t disappear and reappear, objects aren’t transparent)
Theory of False Belief
Others don’t have false beliefs
Children of 3 years lack this ability
even forget that they have false beliefs
Children of 4 years old have this belief
Autism
socially unresponsive, detached
attend to objects, not people
Fail all theory of the mind tests
Do not pretend
Mechanisms of Developmental Change