Development Flashcards
Zygote
Fertilized egg (conception to 2 weeks)—rapid cell division
Embryo
(2 - 8 wks.)—attachment to uterus, heartbeat begins, body parts appear, organs & internal systems form
Critically vulnerable to insults to its development
Fetus
(9-40 wks)
Ultrasound
High-frequency sound waves to look at organs and structures inside the body
Age of Viability
Age at which a premature baby can survive outside of the uterus
Placenta
Transfers nutrients and oxygen from mother to fetus and filters harmful substances from reaching the embryo or fetus [3rd stage of labor]
Sensitive period/critical period
Time when organisms are particularly susceptible to certain kinds of stimuli
Teratogen
Agent, such as a chemical or virus, that can reach the embryo or fetus during prenatal development and cause harm
Temperament
Person’s characteristic emotional reactivity and intensity; apparent from first weeks of life and generally persist into adulthood
Sensorimotor stage of development
0-2 years. Experiencing world through senses and action
Preoperational stage of development
2-6 years. Representing things with words and images. Intuitive reasoning.
Concrete operational stage of development
7-11 years. Thinking logically about concrete events. Grasping concrete analogies and performing arithmetical operations
Formal operational
12-adulthood. Abstract reasoning
Schemas
Conceptual models of how the world works
Assimilation
Transforming the environment so that it can be placed in pre-existing cognitive structures