Ch 7 Flashcards
Sensation
Detection of sense info
Unconscious
Perception
Interpretation, organization, understanding of sense info
Conscious
Selective perception
Focus on one thing while ignoring others
Frontal lobe functioning
Measuring attention/perception
Orienting
Habituation
Preferential looking
Evoked potentials
Inattentional blindness
Gorilla and basketball court
You focus on something and ignore the peripheral stimuli
Change blindness
Switch person experiment
Dont notice changes
Orienting
Move towards something shows ability to detect it
Habituation
Bored to renewed interest
Ex. Show a res card repeatedly, child gets bored
Then show a blue card and shows renewed interest
Preferential looking
Which stimuli they prefer to look at
Ex shapes in mobile, faces
Evoked potentials
Look at neuronal activity in a brain area
Can look at long term functions
Touch and pain
Babies cry, show increased hr and cortisol when pricked
Sensitivity to touch in womb: baby will root, display different reflexes (palmar also)
2mo after conception
Smell and taste
Smell: evident prenatally
Prefers smell of mothers amniotic fluid at birth
Newborns pos or neg responses to smells and tastes (facial expressions, disgust)
Will increase rate of sucking
Hearing
28 week old FETUS shows reactivity to sound
Eyelids clamp
Mothers voice is preferred: increase in sucking rate
Prefer familiar stories, languages, will increase sucking
Prefer low frequency sounds (voice and language dev) and improves at 6mo
Sound location
10 min after birth
Recalibration/ adjustments with head growth (larger distance between ears)
7 months: location and distance of sound
Startle reactions
Vision
Track moving objects
Newborns perceive contrast but few colours