Normal Development Flashcards
IQ is a ratio of what two “ages” in a child?
Mental Age/ Chronological Age
What are the 3 sub-types of factors which can influence normal development?
Genetic
Nutritional
Environmental
Describe the difference between MEDIAN age and LIMIT age for acquiring a skill
MEDIAN = 50% children in population achieve a skill
LIMIT = skill should have been acquired by 97.5% of children (2SD)
What are the normal MEDIAN and LIMIT ages for walking?
13 months = MEDIAN
18 months = LIMIT
By what age do the majority of children crawl?
10 months
Give variations of crawling
Bum shuffle (adopted by 70% of non-crawlers) Commando crawl (pulling along by arms) Rolling Back Torpedo Shuffling (dig heels in and push head backwards)
Children who adopt a crawling variation generally walk later than those who 4-point crawl. TRUE/FALSE?
TRUE
What is meant by cephalocaudal development?
Direction of development in child
Head -> Trunk -> Limbs -> Extremities
What are the 4 main areas of development?
Gross motor
Fine motor and vision
Language and hearing
Social behaviour and play
A development in one specific area can halt development in another area. TRUE/FALSE?
TRUE
e.g. a development in walking between 13-18 months can cause a halt in the progression of speech and language
Give examples of the primitive reflexes
- Sucking and rooting (breastfeeding)
- Palmar and plantar grasp
- Asymmetrical tonic neck reflex (ATNR)
- Moro
- Stepping and placing
Explain the moro reflex
- response to a sudden loss of support
- infant feels as if it is falling
- arms spread by side and then brought in as if to regain support
Describe what happens during the Asymmetrical Tonic Neck Reflex (ATNR)
head turns to side and ipsilateral arm comes out for stability
The ATNR is lost later in life. TRUE/FALSE?
TRUE
lost at around 3-4 months
When are the saving reflexes developed and give an example?
between 5-7 months
e.g. putting hand down to stop losing balance when sitting