Chapter 5 Flashcards
Sensation
The processing of information from the world by the sensory system
Perception
Taking notice of sensation, organizing and interpreting that information.
Until very recently, what was assumed about infants’ vision?
They could barely see. Not true.
Preferential-looking technique
A method for studying visual attention in infants by showing infants two patterns/objects at a time and seeing which they have a preference for.
Modern versions of preferential-looking technique often use:
Eye trackers.
Visual acuity
Sharpness of ability to discern what it is you are looking at.
Contrast sensitivity
the brain’s tendency to notice contrasts in light and darkness.
Stripey pong paddles
Can be used to test infants visual acuity by seeing which they look at first. Different amounts of stripes mean different levels of visual acuity needed to tell that there’s contrast (instead of just looking grey)
Cones
Light-sensitive parts of the human eye
Rods
Color-sensitive parts of the human eye.
Infants’ ability to see color
Cannot see color in the first month, they do not have RODS.
Does language influence perception of color?
Not in infancy! Infants tell changes in color even before they learn language. According to Yang Et Al (2015)
Development of visual acuity in infants
First, they focus on the contours of the face, and then the specific details at above 2 months (typically).
Interesting quirk about bilingual infants
They’re stupid and lame LOL LMAO jk they develop visual acuity faster.
What can they see at 4 months of age?
They start focusing on the mouth of people speaking, as they are learning to speak themselves.