Week 5 Flashcards
hwat is perception
ability to distinguish and identify sensory info to diret and sustain attention to various aspects of environment and lend meaning to thm
what 2 theoretical explanations support perception? How?
piaget’s ocgnitive devlpmental view
- children acively search for new info in evironment - action leads to peception
Ex: grasping an object to realize it is graspable
Gibsons exological thoery
- children actively search for info in evrionemnt
- perception leads to action
whats the difference petween piaget cog developmental view and gibsons ecologial thory in terms of eprception
poaget - action leads to eprception
must grasp to realize object is grhapsable
gibson - perception leads to action
vision is for seeing, vision is for graspoing
80% of all sensory info is channeled thru the __ sysetm
visual
what is perception based on info processing view
senory input - processing in CNS - out put motor resposne
what part of eye trasnmit message to brain - where to in brain
optic N - thru thalmus to visual cortex - to other parts of brain for interpretation
what do eyes lack at birth? what do eyes not have at all? result of this?
myelination, synaptic connection
no fovea - spatial resolution is poor (wher ecentral visual field formed
when is eye of adult developed
1 year old (infancy6)
name 4 characteristics of a newborns eye
no fovea , shorter eyeball (Farsightedness), underveloped cornea - diffculty focusing
why do newborns have poor spatial resolution
no fovea
why. do newborns have diffculty ffocusing
udnerdevleoped cornea
what is visual acuit ?
static
dynamic:
clearnedsss of vision + cpacaity to dect smalls timuli and details of large ivsual pater
static: detail in stationary object
dynamic: detail in moving object
explain growth of visual acuity, static or sdynamic ffirst?
what happens to dynamic with age
static devleops firts, focus depnds on speed of object
dynamic acuity incrases with age - stabilizes in adolscene to middle adulthod
what is object permanence?
objects still exist even when not seen
when does object permanence emerge?
about a year old (infancy)
what challenges onject permamence in later ingany
invisbile displacement - object moved without diretly seen
where would child searh for object when objec tpermance first ememrges/
what about when its imrpoved
first found it
last saw it
what is A not be error.
what are some possible reasons
occurs aroudn 1 - infant stuckse arch for where they first foudn oject rther than lst saw
- coneptial error: gen belie
- inhibtion hypoth
- memory explanation
- attention hypoth
what are some psosibel reasons for A not B error?
Conceptual error: Genuinely believe object is in A
- Inhibition hypothesis: Can’t inhibit previously successful searches
- Memory explanation: Tendency to repeat previous motor actions
- Attention hypothesis: Weren’t paying enough attention to B location
what is spatial orientation?
recognize objects orientaiton or position in 3D space
what happens at 3/4 year (in early childhood) in terms of spatial orienttion
understand dualism (up/down, high low, front back
when is spatial oritentation mainly developed
8 years (lateer childhood)
what is figure gorund perception
ability to distinghish object from surroundgin background
when does figure ground perception improves
early and later childhood