Developmental Psych Flashcards
Klinefelter’s Syndrome
Males with XXY chromosomes
Sterile
Mental retardation
Turner’s syndrome
Females with only 1 X chromosome
No secondary sec characteristics
Physical abnormalities
Prenatal Development
- Zygote: sperm fertilizes egg
- Germinal: 2 weeks, egg implants in uterine wall
- Embryonic: 8 weeks, embryo increases in size
- Fetal: 3rd month > birth, measurable electrical activity in the brain
Rooting reflex
Infants automatically turn their heads in the direction of stimuli when applied to the cheek
Moro reflex
infants react to abrupt movements of their heads by flinging out their arms, extending their fingers, bringing their arms back to the body and then hugging themselves.
- disappears after 4 months
Babinski reflex
infants’ toes automatically spread apart when the soles of their feet are stimulated
Grasping reflex
Infants automatically close their fingers around objects placed in their hands
Piaget Development Timeline
- Sensorimotor: 0-2 years
- Preoperational: 2-7 years
- Concrete operational: 7-11 years
- Formal Operational: 11-onwards
Sensorimotor Stage
0-2 years
differentiates self from objects
primary and secondary circular reactions
object permanence achieved
Primary Circular Reactions
coordinate separate aspects of movement
repetition = circular
Secondary Circular Reactions
directed toward manipulation of objects in the environment instead of just the body
Preoperational Stage
2-7 Years
- have learned about object permanence
- uses representational vocab
- centration: focus on only one aspect (like egocentrism)
- cannot understand conservation
Concrete Operational Stage
7-11 years
- mastered conservation, no more egocentrism
- cannot understand abstract thought
- logical thinking
Zone of Proximal Development
Vygotsky development theory
Refers to skills and abilities that have not yet fully developed but are in the process of development. The child needs guidance to demonstrate.
EX: child takes a test then retakes a test with guidance from an adult and improves their score. Difference between the two scores = zone
Categorical perception
Ability to distinguish between differences in sound that do or do not denote differences in meaning
Timeline of Language development
18m: dozens of words, one at a time
18-20m: start combining words
2.5-3y: longer sentences, vocab increases
5y: substantially mastered
Errors of Growth
mastering complex general rules of language»_space; overregulation»_space; makes mistakes and creates words they have never heard (runned, hisself)
Frued’s Timeline of Development
- Oral: 0-1y
- Anal: 1-3y
- Phallic: 3-5y
- Latency: 5- puberty
- Genital: puberty - adulthood
Oral Stage
gratification through putting objects in mouth/biting/sucking
Fixation = excessive dependency
Anal Stage
gratification through elimination/retention of body waste
Fixation = excessive orderliness or sloppiness