FMLY 1010 Lecture Notes - Lecture 28: Visual Acuity, Primitive Reflexes, Peripheral Vision

• School: University of Manitoba
• Department: Family Social Sciences
• Course: FMLY 1010
• Professor: Christine A.Schippers

Document Summary

Tracking = the smooth movements of the eye used to follow the track of a moving object. Tracking at birth is fairly inefficient, but improves rapidly. Younger than 2 months show some tracking if the object is moving slowly. 6-10 weeks tracking becomes skillful rather quickly. Cone cells in the eyes are necessary for perceiving red, green, and blue: present at 1 month (perhaps at birth) Infants can discriminate between various colours (almost as well as adults) A number of visual skills depend on a specific kind of visual stimulation during sensitive periods of development. Visual deprivation at 6 months-adolescence can prevent development of normal peripheral vision. Sensitivity to global direction of motion is affected only by visual deprivation near birth. Auditory acuity = how well we can hear. Better auditory acuity than visual acuity at birth. Newborns hear nearly as well as adults do: only less acuity with high pitched sounds (needs to be louder for newborn to hear)