Flashcards in 1. Early Infant Monocular Vision Deck (9)
At what age do infants tend to reach for objects presented in the visual field
3 weeks tend to POORLY reach for objects
-reach but don't open hands fast enough
At what age do infants start reaching more accurately
What is the withdrawel reflex response based on?
1. enlarging or looming target
-konio cells respond to growing objects
2. dynamic stereoscopic changes
-opposite directional movement of the 2 eyes impacts this response
At what age do babies look in the same direction as the person they are looking at
What can babies see when they are
1 week, 1 month, 2 months, 6 months
1 week: low contrast, blurry, difficult to recognize objects w/o movement
1 month: some improvement, but identification is still difficult w/o movement
2 month: can identify image w/o movement, but just faintly
6 month: image can be identified relatively easily w/o movement
at what age do kittens respond to light?
3 weeks of age
at what age will kittens prefer a closer table and have a sense of depth?
4 weeks of age
when do neuromodulators start working in humans?
5.5 weeks after birth