Psychology Ch. 4 Flashcards
Study’s mental, physical, and social changes throughout a lifetime.
Developmental Psychologists
List the three major issues in developmental psychology
Nature vs. Nurture, Continuity vs. Stages, and Stability vs. Change
Life begins at conception, how many chromosomes come together from the egg and sperm to make this happen?
23 pairs of chromosomes. (46 total)
1st Stage of prenatal development, from 0-2 weeks. Includes two weeks of rapid cell division. Ten days after conception it attaches to the uterine wall.
Zygote
2nd Stage of prenatal development, from 2-9 weeks. Organs begin to form and function, heartbeats begin.
Embryo
Organ through which nutrients and oxygen are delivered to a growing baby.
Placenta
Third stage of prenatal development, from 9wks to birth. By 14 weeks, the sex of the child can be identified.
Fetus
What is the age of viability?
24 weeks
Drugs, chemicals, viruses, hormones, or stress that causes harm to the unborn baby.
Teratogens
If a pregnant mother drinks a lot of alcohol, what is the baby at risk of developing?
Fetal Alcohol Syndrome (FAS), or FASD, Fetal Alcohol Spectrum Disorder.
Characteristics of FAS and FASD?
Low birthweight, small disproportioned head, abnormal facial features, likely lower intelligence and brain abnormalities.
Unlearned responses triggered by a specific stimuli
Reflexes
Reflex in which a baby’s foot fans out when stroked from heel to toe
Babinski Reflex
Reflex that when startles, a baby’s arms will fly out then in very quickly.
Moro Reflex (AKA Startle reflex)
A baby’s reflex that when its cheek is stroked, the baby turns its head that direction and opens it’s mouth.
Rooting Reflex
Baby’s reflex to such an object placed in its mouth
Sucking Reflex
Baby’s reflex to grasp an object placed in its palm.
Palmar Reflex
Baby’s reflex (only in the first 8wks) that when help upright and moved forward, the baby will step rhythmically.
Stepping Reflex
After birth, the neural networks grow increasingly complex, forming what?
Billions of synapses
Orderly sequence of biological growth relatively uninfluenced by experiences
Maturation
The inability to remember the first few years of life due to incompletely formed neural networks.
Infantile Amnesia
All mental activities associated with thinking, knowing, remembering, and communicating.
Cognition
A mental picture/mold that organizes our past experiences providing a framework for understanding our future experiences.
Schema
Interpreting new experiences in terms of existing schema.
Assimilation