Lifespan Flashcards
(229 cards)
What is Bronfenbrenner’s ecological model?
It has 5 systems
- Microsystem - immediate environment, face to face relationships at home, school, etc.
- Mesosystem - interactions between components of the microsystem like family stuff affecting behavior at school.
- Excosystem - broader environment that affect immediate environment like workplace or mass media.
- Macrosystem - overarching environment influences like cultural beliefs.
- Chronosystem - environmental events that occur over lifespan that impact person like change in family structure.
What is Rutter’s (1985) family risk factors for negative outcomes?
Severe martial discord, low socioeconomic status, overcrowding or large family, parental criminality, maternal psychopathology, and placement outside the home.
What is reaction range?
Range of reaction for certain traits and status within the range depends on environmental factors.
What is canalizations?
Describes how genotype restricts phenotype to a small # of possible outcomes.
What are the genotype-environment correlations?
Based on the premise that genetics influence environment person is exposed to and that environment will reinforce the genetic makeup. There are 3 types
Passive - parents provide children with environments that encourage the development of trait.
Evocative - genetic makeup evokes reactions from others that reinforce child’s genetic makeup.
Active - actively seek out experiences that are consistent with their genetic predispositions
Does the genotype-environment correlation change?
Yes. It changes over time. Passive and evocative in infancy when child has little control, but active when child is more independent.
What is epigensis?
Belief that the relationship between genetics and environment influences are bidirectional and ongoing.
What are experts thoughts about critical periods versus sensitive periods?
Experts believe humans behaviors are based mainly on sensitive rather than critical periods. Sensitive periods are more flexible, longer in duration, and not tied as closely to maturation.
What are the prenatal development stages?
Germinal (first two weeks)
Embryonic (3-8 weeks)
Fetal (9 weeks until birth)
How many pairs of chromosomes does a person have?
23 pairs (22 pairs of autosomes and the 23 is the sex chromosome; XX = female and XY = male)
What is an autosomal disorder?
A disorder that is carried on an autosome.
What is a sex linked disorder?
One that is carried on the sex chromosome.
What is the difference between dominant and recessive genes?
Dominant traits only need one single dominant gene, but a recessive requires two recessive genes to be inherited.
What is an example of a autosomal dominant gene disorder?
Huntington’s disease
What is an example of a recessive autosomal gene disorder?
Cystic fibrosis
Sickle cell
Tay-Sachs disease
PKU (phenylketonuria)
What is Down syndrome?
It is a autosomal disorder.
The presence of an extra 21st chromosome- intellectual disabilities, retarded physical growth and motor development, distinctive physical features.
Increase risk with increase in age of parents
What is Klinefelter syndrome?
It is a sex linked disorder.
Occurs in males due to two or more X chromosome with single Y chromosome.
Small penis and testes, develop breast during puberty, limited interest in sex, often sterile.
What is Turner syndrome?
It is a sex linked disorder.
Occurs in females due to the presence of a single X chromosome.
Short in stature, drooping eyelids, webbed neck, retarded or absence of secondary sex characteristics.
What is Prader Willi syndrome?
Due to deletion on chromosome 15.
Intellectual disabilities, obese, obsessive compulsive behaviors, motor development delays, underdeveloped sex organs.
What are the types of alterations in chromosomes?
Deletions-part of chromosome is missing.
Translocation-transfer of a chromosome segment to another chromosome.
Inversion-chromosome breaks in two places and the segment formed by the breaks inverts and reattaches to the chromosome.
Maybe inherited, but usually don’t affect the phenotype.
When is a teratogen most likely to cause a major defect?
During the embryonic stage (3-8 weeks)
What is fetal alcohol spectrum disorder?
Occurs when alcohol exposure during prenatal period.
Range of irreversible physical, behavioral, and/or cognitive abnormalities.
Fetal alcohol syndrome is the most severe condition. Usually has motor impairments and intellectual disabilities.
Less severe condition includes alcohol related neurodevelopmental disorder, alcohol related birth defects, fetal alcohol effects.
What are some effects of cocaine use during pregnancy?
Increase risk for miscarriage, stillbirth, premature birth, sudden infant death syndrome (SIDS), seizures, low birth weight, reduced head circumference,sleep and feeding issues, developmental delays, tremors, exaggerated startle response.
Long term effects unclear
May lead to cognitive and behavioral problems usually in early school years
What are some of the effects of nicotine use during pregnancy?
Placental abnormalities that can cause fetal dead and still birth.
Low birth weight
Sudden infant death syndrome
Respiratory diseases
Emotional, social, and cognitive deficits