Development Unit IX (9) Flashcards
3 Major Issues of Developmental Psych
- Nature vs. Nurture
- Continuity vs. Stages
- Stability vs. Change
Nature vs. Nurture
Nature: Genes impact
Nurture: Experiences, experimental and developmental AFTER birth
-How do the two interact?
-At every prenatal stage, both genes and environment play a role
-Teratogens
Continuity vs. Stages
- Continuity: Change and development is a gradual, continual process
- Stages: We progress through specific moments (sequence of separate stages)
- Ex: Puberty= stage
Stability vs. Change
- Stability: Do our early traits persist throughout life in same person?
- Change: Do we become different people as we age?
Prenatal Development
- conception –> birth
- Zygote: Fertilized egg
- Fewer than 1/2 survive beyond 1st 2 weeks
- Go through Fallopian tubes and attaches to uterine wall
- Zygote–> Embryo–> Fetus
Milestones
- 1st 2 weeks: cell differentiation begins
- 9 weeks: embryo looks human (now a fetus)
- 6 months:
- Organs develop enough to give a preemie change at survival
- Fetus responds to sound
- Newborns prefer the sound of mom’s voice (familiar)
Newborn Reflexes
- Reflex: automatic things they do from birth (nature)
- Rooting Reflex
- Startle (Moro) Reflex
- Grasping Reflex
- Stepping Reflex
Rooting Reflex
- Touch baby’s cheek and it will turn in that direction and make a sucking motion
- Thinks it is feeding time
Startle (Moro) Reflex
-Moves limbs out and then in when they feel like they are falling
Grasping Reflex
- Reflexive action to close their hand around things in their hand
- Theory: trying to get people to pay attention to them
Stepping Reflex
-Exaggerated stepping motion in the air
Imitation
- Babies imitate/mimic basic facial expressions
- Ex: stick tongue out at baby–> baby will stick tongue out
Infant Experiments
- What can babies sense, perceive, recognize?
- Infant Perception Lab:
- Look at objects more in the video when they have on Velcro gloves
- Babies usually look at faces
Novelty Preference
- Habituated someone to one stimulus
- Present over and over till bored of it
- Present a new stimuli… Which response is more novel?
- New stimuli: slightly different or present two new and let person choose which is more interesting
- Novel: What is more interesting or what stimuli can babies discriminate
- Ex: babies can discriminate between lemur faces
- Like: faces, things that look like eyes, things 8-10” away, speech (especially mom’s), prefer smell of mom
Physical Development of Brain
-We grow new neural connections as adult, not new neurons (have a lifetime supply from birth)
-Newborns:
1 month: neural networks are forming rapidly
9 months to 2years: most rapid growth in frontal lobes (3-6 years)
-FL Gives ability to control impulses starting around this age
2 years to adult:
-Neural pruning process post-puberty
-Association areas start to form
Sense of Self and Scale Error
- Examples of silly mistakes children make
- Sense of self: aware that our body is part of ourself
- Scale Error: Unaware of the size of ourself compared to other things
Ex of Assimilate vs Accomodate
- Child knows what a horse is, sees a zebra, and thinks it is a horse (assimilation)
- Adult tells child that it is a zebra, and creates a new Schema (accomodation)
Piaget’s Stages of Development
- Sensorimotor
- Pre-operational
- Concrete Operational
- Formal Operational
Social Development
-Looks at relationships and how they are formed
Contact Comfort
- Most important cause of attachment
- Causes growth
- Attachment figures give a sense of security and courage to explore the environment
Familiarity
- Who provides contact comfort the most often
- Imprinting
Secure Attachment
- Parent is there for them dependably
- Child trusts caregiver
- Uses parent as secure home base to explore environment
- Outward signs: Shows distress when caregiver leaves room, when caregiver comes back the child is easily soothed
Insecure Attachment
- Parent is there for them sometimes (not dependable)
- Outward signs: Very upset when parent leaves, difficult to calm down, or baby doesn’t care whether parent leaves or not, or avoids parent (holds a grudge)
Parenting Styles
- Authoritarian
- Permissive
- Authoritative