Developmental Psychology Flashcards
Define development
Development: ‘the study of systematic changes and continuities in an individual that occur between consumption and depth’
- Carol Sigelman
What is Developmental psychology?
- The study of human behaviour as a function of age
- How and why change
- Change as a function of:
- Physical maturation
- Cognitive development
- Social experience
Areas of study in developmental psychology
Physical development, Cognitive development, Psychosocial development
What does Physical development consist of?
Body changes, motor skills, puberty, physical signs of ageing
What does cognitive development consist of?
Perception, language, learning, memory, problem-solving
What does Psychosocial development consist of?
- Personality, emotions, gender identity, moral behaviour, interpersonal skills, roles…
- Societal role
Define change
- Change: Systematic changes are orderly, patterned, and relatively enduring
- Developmental Psychology, focuses on change over the lifespan
Define continuities
- Continuities: Refer to ways in which we remain the same or consistent over time
- Developmental Psychology, focuses on tempermant, characteristics that come as a child which continue over the lifespan
Overview of development in the womb
- Egg & Sperm → Genes from mother and father combine (Zygote)
- Blastocyst → Cluster of cells start to divide and multiply (days 5-9)
- Embryo → Early stage: formation of body structures, tissues, organs (to 8 weeks)
- Foetus → The unborn offspring: has major body organs, though not fully developed
What is a teratogen? (Examples)
Teratogens: Any agent that can cause a birth defect and disrupt development
↳ E.g. radiation, chemicals, nicotine, alcohol, recreational drugs, etc;
Early Experience Sensitive periods
- Impairments are related to timing and duration of deprivation
- Examples
↳ Fetal Alcohol Spectrum Disorder → Facial anomalies, developmental deficits
↳ Rubella virus → Hearing loss
- Examples
Why is Embryonic period most susceptible?
- Embryonic period:
- Lasts up to 8 weeks
- Period of greatest susceptibility to the embryo:
↳ Rapid development
↳ Person who’s pregnant is not aware
↳ Higher chance of accidental exposure
Evidence supporting sensitive periods (Summary)
- Neurological development →1-3 years
- The development of biological systems can be acutely timing sensitive
- Later cognitive/regulatory impairments are also related to timing but also duration
- Critical and sensitive periods are useful ideas and certainly matter BUT can be an oversimplification
Sensitive periods in Neurological Development
- Extensive myelination (development of white matter) of the nervous system
↳ Positive experiences, during those early years has a lasting impact on the developing brain
↳ Negative experiences such as trauma, stress, exposure to drugs and alcohol also have a lasting impact
↳ Because it’s happening at such a rapid time of brain development - Language development - early deprivation important
↳ If children miss early stages of language development → and are introduced to that later in life, they can’t compensate for missed time in language development
Sensitive periods in relation to cognitive/regulatory impairments
- Ability to think, regulate, stress depends on the duration of that exposure → Longer the exposure, the bigger the outcomes
Example of how sensitive periods can be an oversimplification
- E.g. bonding
↳ Children who are adopted → Removed from families and move can work
↳ Children born prematurely → Overcoming negative experiences
