Deverlopmental Psychology Flashcards
What does developmental psychology examine?
Changes in physical, biological, psychological & behavioural processes as we age
What are the critical & sensitive periods?
Critical period = age where experiences must occur
Sensitive period = optimal age range
What is Visual Mapping Change?
- No change (constant)
- Continuous (gradual changes)
- Stages (discontinuous changes)
- Inverted U-shape
- U-shape function
What is inverted U-shape?
Emerges early - peaks
- diminishes with age
What is U-shape function?
Emerges early - disappears
- re-emerges
What are Research Designs?
Longitudinal, Cross-sectional, Sequential (Cohort - sequential)
What is longitudinal research design?
Test some cohort at different times
What is Cross-sectional research?
Compare different ages at some time
What is sequential research?
Test several cohorts as they age,
Pros and cons of both longitudinal and cross-sectional
What are longitudinal pros and cons?
- Some people (reduces variability across samples)
- Red conclusions about development
- Time-consuming
- People drop out
- Generalizability
What are the pros of Cross-sectional?
Data from many age groups (fast)
What are the cons of cross-sectional research?
- Cohort effects
- Different experiences, cultural changes, environmental changes (e.g. iPod, cloud, ChatGPT)
What is genotype?
- Actual genetic ‘instructions’
- ‘Blueprint’
What is phenotype?
- Expressed
- Observable, visible
What are the 3 stages of Prenatal Development?
- Gestalt stage
- Embryonic stage
- Fetal stage
What is gestalt stage?
(2 weeks)
- zygote (about 1 week)
- blastocyst attaches to uterine wall (placenta)
What is embryonic stage?
- 2nd-8th week
- placenta & umbilical cord develop - basic systems
What is fetal stage?
- begins at 9th week
- refinement, growth
- brain development
What environmental influences negatively impact prenatal development?
Teratogens
Maternal malnutrition
Maternal stress (stress hormones)
How do teratogens negatively impact prenatal development?
Environmental agents that may cause abnormal development
How does maternal malnutrition negatively impact prenatal development?
Miscarriage, premature birth, stillbirth, impaired brain development
How does maternal stress negatively impact prenatal development?
Premature birth, infant irritability, attentional deficits
What can newborns do?
- can discriminate different speech sounds
- can acquire classically conditioned responses
- can do simple observational learning (initiate adult facial expressions)
How do the reflexes of motor development work?
Innate behaviours
- startle (moro)
- babinski (foot)
- blink
Disappear (some stay - some signal trouble)